2014 MACK CHU Recalls (5)
- Campaign:
- 13V195000 on 05/13/2013
- Component:
- Service brakes
- Manufactured:
- 07/15/2012 - 03/17/2013
- Affected:
- 5,203
- Defect:
- Mack trucks, inc. is recalling certain model year 2013-2014 chu, cxu, gu, mru, and leu trucks manufactured july 16, 2012, through march 18, 2013 and equipped with drum brakes. the clevis pin for the brake slack adjuster may be missing a cotter pin. if the cotter pin is not installed, the clevis pin may loosen and fall out causing a loss of brake function on the affected wheel.
- Consequence:
- A loss of brake function at one wheel will lead to increased stopping distances and pulling to the left or right when braking, which may increase the risk of a crash.
- Correction:
- Mack trucks, inc. will notify owners, and dealers will inspect the brake slack adjusters and install the brake hardware, as necessary, free of charge. an interim was mailed to owners on june 20, 2013. a second notice was mailed to owners on september 30, 2013. owners may contact mack trucks at 1-800-528-6586. mack trucks' recall campaign number is sc0370.
- Notes:
- Owners may also contact the national highway traffic safety administration vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to www.safercar.gov.
- Campaign:
- 13V492000 on 10/29/2013
- Component:
- Power train:axle hubs
- Manufactured:
- 08/27/2012 - 08/15/2013
- Affected:
- 1,155
- Defect:
- Mack trucks is recalling certain model year 2013-2014 chu, cxu, gu, leu, and mru vehicles manufactured with pro-torque axle spindle nuts from august 28, 2012, through august 16, 2013. the pro-torque nut may not have been installed correctly, which may result in a loosening of the nut.
- Consequence:
- If the nut comes loose, the hub assembly may separate from the vehicle, increasing the risk of a crash.
- Correction:
- Mack trucks will notify owners, and dealers will inspect and repair the vehicles, as necessary, free of charge. the recall began on november 12, 2013. mack's recall number is sc0371. owners may contact mack trucks at 1-336-393-2000.
- Notes:
- Owners may also contact the national highway traffic safety administration vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to www.safercar.gov.
- Campaign:
- 14V078000 on 02/27/2014
- Component:
- Electrical system
- Affected:
- 70,208
- Defect:
- Mack trucks, inc. (mack) notified the agency on february 20, 2014, that they are recalling certain model year 2010-2012 chu, cxu, gu and td vehicles manufactured from june 16, 2009, through july 8, 2011. while continuing to research the scope of the issue, mack expanded the recall on november 18, 2014 to include certain model year 2008-2009 and 2013-2014 chu, cxu, gu and td vehicles manufactured from june 16, 2009, through july 8, 2011. having completed its investigation, mack once again expanded the recall during february 2015 to include an additional 53,780 vehicles from model years 2007 and 2015. the recall now covers model year 2007-2015 includes chu, cxu, gu and td vehicles produced october 13, 2006, through october 3, 2014. in the affected vehicles, the electronic power distribution module (epdm) may be contaminated from water leaks in, and around, the windshield. if exposed to water leaks, contaminants such as road salts may deposit on the epdm.
- Consequence:
- Deposits of contaminants may result in the circuits being bridged, creating a high resistance short, increasing the risk of a fire.
- Correction:
- Mack has notified owners, and dealers will inspect the epdm. if contamination has occurred, dealers will replace the epdm and address the leak, free of charge. owners of model year 2010-2012 chu, cxu, gu and td vehicles were initially notified april 24, 2014. owners affected by the recall expansions were notified in february 2015. owners may contact mack trucks at 1-336-393-2000. mack's number for this recall is sc0375.
- Notes:
- Owners may also contact the national highway traffic safety administration vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to www.safercar.gov.
- Campaign:
- 14V208000 on 04/22/2014
- Component:
- Exterior lighting:turn signal:flasher unit
- Manufactured:
- 02/27/2006 - 11/07/2013
- Affected:
- 44,047
- Defect:
- Mack trucks inc. (mack) is recalling certain model year 2010-2014 chu, cxu, and mru, 2007 ct and cv, 2008-2014 gu, and 2011-2014 leu, and td trucks manufactured february 28, 2006, through november 8, 2013, and equipped hamsar electronic flasher. the hazard warning lights may fail.
- Consequence:
- A failure of the hazard warning lights could reduce the trucks visibility, increasing the risk of a crash.
- Correction:
- Mack will notify owners, and dealers will replace the electronic flasher unit, free of charge. the recall will begin by mid-june 2014. interim letters went out to owners on june 23, 2014. the recall began on july 25, 2014. owners may contact mack customer service at 1-866-298-6586. mack's number for this recall is sc0379.
- Notes:
- Owners may also contact the national highway traffic safety administration vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to www.safercar.gov.
- Campaign:
- 14V545000 on 09/08/2014
- Component:
- Forward collision avoidance: adaptive cruise control
- Manufactured:
- 08/22/2012 - 06/26/2014
- Affected:
- 538
- Defect:
- Mack trucks, inc. (mack) is recalling certain model year 2013-2015 cxu and 2014-2015 chu trucks manufactured august 23, 2012, through june 27, 2014, and equipped with adaptive cruise control. due to a software error, the affected vehicles may not provide visual or audible alerts to the driver warning them that an obstruction in the road was detected.
- Consequence:
- If the driver is not warned of something being in the truck's path, there is an increased risk of a crash.
- Correction:
- Mack will notify owners, and dealers will reprogram the vehicle control unit, free of charge. the recall began on september 30, 2014. owners may contact mack customer service at 1-800-866-1177. mack's number for this recall is sc0381.
- Notes:
- Owners may also contact the national highway traffic safety administration vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to www.safercar.gov.
2014 MACK CHU TSBs (130)
- Bulletin:
- FSB-813-001
- Component:
- 160000 structure
- Summary:
- Mack: information provided on certain trucks in regards to b pillar cracks forming at upper exhaust mounting and a new development reinforcement that improves durability of b pillar. models chu. no models years listed. *pe
- Bulletin:
- FSB-364-035
- Component:
- 126200 exterior lighting:turn signal:switch
- Summary:
- Mack trucks: new switch mounting bracket was developed to replace existing turn signal switch mounting bracket, due to contact between switch fingers and sleeping shaft, that caused switch operation to improperly cancels itself. model ch
- Bulletin:
- FSB-364-036
- Component:
- 110000 electrical system
- Summary:
- Mack truck: flashers are to be removed due to durability issues. *js
- Bulletin:
- FSB-873-015
- Component:
- 353600 equipment:air conditioner
- Summary:
- Mack trucks:due to excessive moisture in the climate unit, some vehicles may develop a blower motor failure. *js
- Bulletin:
- FSB-413-001
- Component:
- 101000 power train:clutch assembly
- Summary:
- Mack trucks: the air assisted clutch cable on some vehicles may fray at the clevis. *js
- Bulletin:
- FSB-831-002
- Component:
- 162310 structure:body:door:hinge and attachments
- Summary:
- Mack: the door stop bracket will fail, on some trucks, due to an over extension of door, but a new door design assembly is available. model chu, cxu, gu, td. no years listed. *pe
- Bulletin:
- FSB-512-002
- Component:
- 045000 service brakes, air:disc
- Summary:
- Mack: air disc brake experiencing thermal overload condition that over adjustment of normal pad wear compensation that maintains running clearance between brake pad and rotor and reduces running clearance below desired level. model chu, c
- Bulletin:
- FSB-413-003
- Component:
- 101000 power train:clutch assembly
- Summary:
- Mack: on some trucks, more leg and knee room was provided for operator comfort due to air operated clutch assist system designed to reduce clutch pedal effort by 20% and clutch pedal travel by 2' (50.8mm). model chu, ctp, cxp, cxu, gu. n
- Bulletin:
- PI-0827
- Component:
- 020000 suspension
- Summary:
- Mack: information procedure regarding the inspection and replacement of top plate and spring seat, due to defective bushings of twin y air suspension, if needed. model chu, cxu. no years listed. *pe
- Bulletin:
- SRA-M-0374
- Component:
- 061200 engine and engine cooling:engine:diesel
- Summary:
- Mack: there is an automatic electric over speed protection shutdown that monitors diesel engine rpm and engine shutdown in event of an over speed condition, which may be caused by gases, in trucks, in off road areas and pulled through air
- Bulletin:
- PI-0842
- Component:
- 063100 engine and engine cooling:exhaust system:emission control
- Summary:
- Mack truck: some trucks have preproduction engine emission certification label that needs to be removed and replaced with updated or corrected engine emission certification label. model 2014 chu, cxu. *pe
- Bulletin:
- FSB-234-019
- Component:
- 071210 fuel system, gasoline:storage:auxillary tank:selector devices
- Summary:
- Mack truck: mounted outside of frame rail, is new fuel tank ventilation filter mounting sleeve, using fuel tank j bracket huck fasteners and to increase protection against fuel injector tip erosion. model chu, cxu, gu, td. *pe
- Bulletin:
- FSB-593-013
- Component:
- 350000 equipment
- Summary:
- Mack truck: the grade gripper feature, on some trucks, are prone to harsh environments with internal contamination, caused by build up of grime, salt, road debris and other contaminants. model chu, cxu, gu, td. *pe
- Bulletin:
- FSB-234-018
- Component:
- 091100 fuel system, other:storage:tank assembly
- Summary:
- Mack truck: to increased protection against fuel injector tip erosion, a new fuel tank ventilation filter was implemented, and mounts on outside of frame rail, using fuel tank j bracket huck fasteners. model chu, cxu, gu, td.
- Bulletin:
- PI-0850
- Component:
- 350000 equipment
- Summary:
- Mack truck: due to an incorrect installation of front axle u bolt wedge, caused the u-bolts to bend would need replacement of the u-bolts and nuts. model chu. *pe
- Bulletin:
- PI-0849
- Component:
- 350000 equipment
- Summary:
- Mack truck: some trucks had front axle u-bolt wedges incorrectly installed and it causes u-bolts to bend on front axle and the u-bolts and nuts need replacing. *pe
- Bulletin:
- FSB-375-012
- Component:
- 111000 electrical system:battery
- Summary:
- Mack: when threshold of high voltage has been met, the lifeguard battery protection system (lvd) relay may not turn loads back on, due to an assembly error at supplier. model 2010-2014 chu, cxu. *pe
- Bulletin:
- FSB-511-009
- Component:
- 034420 service brakes, hydraulic:foundation components:drum:shoes/linings
- Summary:
- Mack: brake shoes protrudes beyond brake drum and can be resolved by installing brake shoes 152mm (6.0 in) and wide brake drums 18mm (7.0 in). model 2011-2014 chu, cxu, gu, td. *pe
- Bulletin:
- FSB-511-002
- Component:
- 034420 service brakes, hydraulic:foundation components:drum:shoes/linings
- Summary:
- Mack: the protrusion of brake shoes beyond brake drum is being replaced with new 152mm (6.0 in) brakes shoes, 178 mm (7.,0 in) wide brake drums on some trucks. model 2011-2014 chu, cxu, gu, td. *pe
- Bulletin:
- FSB-364-037
- Component:
- 110000 electrical system
- Summary:
- Mack: when the output from the vecu gets shorted out to gnd, there is no warning and causes 5th wheel to slide without activating 5th wheel slide switch and needs to be reprogram. model 2010-2014 chu, cxu, gu, td. *pe
- Bulletin:
- 364-038
- Component:
- 110000 electrical system
- Summary:
- Mack : "fifth wheel slide fault" message displaying when vehicle cuts off. this may be caused by parameter programming issue. *lj
- Bulletin:
- 371-040
- Component:
- 046000 service brakes, air:antilock
- Summary:
- Mack trucks: service bulletin : defect with the abs sensor connector, which may cause corrosion. aftermarket jumper harness required to repair (part no. 22490460). *lj
- Bulletin:
- 386-007
- Component:
- 118000 electrical system: software
- Summary:
- Mack trucks: 2012-2014: sensor defect which causes vehicle speed sensor to fail internally. *lj
- Bulletin:
- 593-014
- Component:
- 118000 electrical system: software
- Summary:
- Mack trucks: 2008-2015: slow release of trailer brakes, equipped with grade gripper, causes various combinations and certain truck options. *lj
- Bulletin:
- 851-009
- Component:
- 350000 equipment
- Summary:
- Mack trucks: repair peep window molding that is causing seperation from hinges and causing falling from the door. *lj
- Bulletin:
- 214-019
- Component:
- 354000 equipment:mechanical
- Summary:
- Mack trucks: replacement of exhaust brake rocker arms are required on vehicles built between 09/03/2014 and 10/27/2014. *lj
- Bulletin:
- 237-019
- Component:
- 073200 fuel system, gasoline:fuel injection system:injectors
- Summary:
- Mack trucks: new strategies have been recommended to improve injector repairs. technicians will follow the necessary guidelines for the procedure. *lj
- Bulletin:
- 364-037
- Component:
- 110000 electrical system
- Summary:
- Mack trucks: models 2010-2014: there will be no warning light when vecu get shorted to gnd. which will cause sliding of the 5th wheel when no switch is activated. *lj
- Bulletin:
- 371-040
- Component:
- 114000 electrical system:wiring
- Summary:
- Mack trucks: 2013-2014 signs of corrosion are showing from the anti-lock brake system sensor connector which needs replacement. corrosion of the sensor can cause the engine to de-rate. *lj
- Bulletin:
- 371-048
- Component:
- 350000 equipment
- Summary:
- Mack trucks: 2007-2014: insulation kit is recommended to protect chafing of the cab wiring harness in the column bracket. *lj
- Bulletin:
- 432-014
- Component:
- 118000 electrical system: software
- Summary:
- Mack trucks: the current hardware for m- drive transmission are also used in the us2010 emissions and newer vehicles in north america are the same part number. software that is programmed makes them different. *lj
- Bulletin:
- 593-014-01
- Component:
- 118500 electrical system: integrated trailer brake control
- Summary:
- Mack trucks: grade gripper replacement for truck models; mack, chu, cxu and gu for the following years 2008-2015. the following trucks may also experience slow release of the brakes. *lj
- Bulletin:
- 386-846
- Component:
- 060000 engine (pws)
- Summary:
- Mack trucks: 2013-2014 fuel management gauge, replacement is required for the following models due to fuel gauge sensor not properly working. *lj
- Bulletin:
- 284-056-01
- Component:
- 060000 engine (pws)
- Summary:
- Mack trucks 2015 model years: bulletin information regarding new engine harness changes mp7, mp8,us2014 chu, cxu, gu, leu, mru. the retaining clamps have changed from metal to plastic with metal inserts that are integrated into the harness.
- Bulletin:
- FSB-284-061
- Component:
- 060000 engine (pws)
- Summary:
- Mack truck: should reprogrammed engine ecu and aftertreatment control module (acm) due to premium tech tool experience an error code 38 for scr overtemp and engine ecu software needs checking for any troubleshooting is performed. model 20
- Bulletin:
- PV729-PI0859
- Component:
- 110000 electrical system
- Summary:
- Summary to be provided on a future date.
- Bulletin:
- PI0861
- Component:
- 101000 power train:clutch assembly
- Summary:
- Summary to be provided on a future date.
- Bulletin:
- P10859
- Component:
- 110000 electrical system
- Summary:
- Certain mack chu, cxu, and gu trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. the terminal seals of the harness is a
- Bulletin:
- P10859
- Component:
- 110000 electrical system
- Summary:
- Certain mack chu, cxu, and gu trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. the terminal seals of the harness is a
- Bulletin:
- FSB873-020
- Component:
- 350000 equipment
- Summary:
- Hvac flange, installation, chu, cxu, gu, td.
- Bulletin:
- SC0403
- Component:
- 022510 suspension:rear:axle:spindle
- Summary:
- Interaxle yoke retaining nut recall.
- Bulletin:
- SC0399
- Component:
- 100000 power train
- Summary:
- Mack trucks inc. has determined the cap nut that retains the interaxle driveshaft yoke to the rear axle input shaft may be subject to premature loosening on certain chu, cmh, cmm, cxu, gu, leu, lr, mru and td model vehicles. the potential r
- Bulletin:
- PI 0855
- Component:
- 118000 electrical system: software
- Summary:
- Obd2013 software updates. software updates with enhancements are available for the engine control module (ecm) and aftertreatment control module acm) for mack mp7, mp8 and mp10 engines on obd2013 vehicles built from february 1, 2013 to f
- Bulletin:
- FSB 513-001
- Component:
- 031100 service brakes, electric
- Summary:
- Brake electronic control unit (ecu), reprogramming (mid 136) certain mack chu, cxu, and gu trucks equipped with the basic esp package (zmx-a1x), and built between january 1, 2010 and november 9, 2014, may activate an mid 136 anti-lock brake
- Bulletin:
- FSB 431-010
- Component:
- 103000 power train:automatic transmission
- Summary:
- Range synchronizer, repair. this procedure is to repair mdrive transmissions in the field that exhibit a grinding noise when the transmission range shifts (for example: between 6th and 7th gear) built between 01/01/2013 and 08/18/2014.
- Bulletin:
- FSB 511-002
- Component:
- 044000 service brakes, air:drum
- Summary:
- Brake drum, replacement (steer axle) some mack chu, cxu, gu, and td trucks built between 08/29/2011 and 06/30/2014, equipped with a mack 14.6k steer axle, unitized hub, and 152 mm (6.0 in) wide bendix brake shoes can show signs of brake sho
- Bulletin:
- FSB 511-008
- Component:
- 030000 brakes (pws)
- Summary:
- Brake drum, replacement (steer axle) some mack cxu, chu, gu, and td trucks built between 08/29/2011 and 06/30/2014, equipped with a mack 14.6k steer axle, unitized hub, and 152 mm (6.0 in) wide meritor brake shoes can show signs of brake sh
- Bulletin:
- FSB 511-009
- Component:
- 044000 service brakes, air:drum
- Summary:
- Brake drum, replacement (steer axle) some mack cxu, chu, gu, and td trucks built between 08/29/2011 and 06/30/2014, equipped with a mack 14.6k steer axle, unitized hub, and 152 mm (6.0 in) wide meritor brake shoes can show signs of brake sh
- Bulletin:
- FSB 284-061
- Component:
- 060000 engine (pws)
- Summary:
- Regeneration temperatures. certain mack vehicles built between january 1, 2013 and august 17, 2015 may experience a premium tech tool (ptt) error code 38 for scr overtemp when performing a ptt regeneration. if error code 38 occurs, check t
- Bulletin:
- PI 0859
- Component:
- 263000 forward collision avoidance: adaptive cruise control
- Summary:
- Front radar, failure. certain mack chu, cxu, and gu trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. the terminal seal
- Bulletin:
- FSB 217-004
- Component:
- 060000 engine (pws)
- Summary:
- Oil pan sealing ring, replacement. some mack vehicles equipped with mp8 engines built since january 2010 report oil leaking at the drain plug insert in the 13l plastic oil pan (part number 21368390) due to o-ring material degradation. if o
- Bulletin:
- FSB 375-012
- Component:
- 111000 electrical system:battery
- Summary:
- Battery protection system (lvd) relay on certain mack trucks built from 01/01/2010 to 06/13/2014 with the lifeguard battery protection system (lvd), the lvd relay may not turn the loads back on when the 'high' voltage threshold is met. this
- Bulletin:
- FSB 371-040
- Component:
- 046000 service brakes, air:antilock
- Summary:
- Anti-lock brake system (abs) sensor connector, replacement. the anti-lock brake system (abs) sensor connector on some mack trucks built between 01/01/2013 and 11/07/2014 may show signs of corrosion. corrosion of the abs sensor connector ca
- Bulletin:
- FSB 593-014
- Component:
- 030000 brakes (pws)
- Summary:
- Grade gripper quick release valve, replacement. on some mack chu, cxu, and gu trucks built between 04/31/2008 and 01/05/2015, and equipped with the grade gripper function may experience a slow release of the trailer's service brakes. addit
- Bulletin:
- FSB 271-002
- Component:
- 110000 electrical system
- Summary:
- On some mack models built between january 1, 2013 and september 13, 2013, may experience multiple counts of inactive faults: p113f-12, buffered idle validation switch wire ' vecu side, circuit short to battery. p113f-11, buffered idle val
- Bulletin:
- PI 0862
- Component:
- 020000 suspension
- Summary:
- V-stay rod cover, replacement. some mack chu, cxu, gu, td, leu, mru, and lr trucks built from 03/19/2012 to 08/30/2015 and equipped with mride suspensions may inadvertently lose the v-stay rod cover (part number 21896762) from the v-stay r
- Bulletin:
- 293-027
- Component:
- 062000 engine and engine cooling:cooling system
- Summary:
- Egr mass flow rate low. this bulletin is released to address high counts of diagnostic trouble code (dtc) spn 2659 fmi 18 or p0401 only during normal to high load driving conditions on vehicles assembled between january 2010 and december 2
- Bulletin:
- FSB 431-010
- Component:
- 103000 power train:automatic transmission
- Summary:
- Range synchronizer, repair. this procedure is to repair mdrive transmissions in the field that exhibit a grinding noise when the transmission range shifts (for example: between 6th and 7th gear) built between 01/01/2013 and 08/18/2014.
- Bulletin:
- FSB 371-045
- Component:
- 111100 electrical system:battery:cables
- Summary:
- Certain vehicles built from january 1, 2010 to june 14, 2013 with a mp7 engine may experience cracking or breaking of the 90 degree positive battery cable lug at the starter solenoid stud.
- Bulletin:
- FSB 593-013
- Component:
- 103000 power train:automatic transmission
- Summary:
- Grade gripper solenoid, replacement. on some mack chu, cxu, gu, and td truck models built between 04/31/2008 and 05/11/2015, the solenoid valve for the grade gripper feature is prone to internal contamination in harsh environments.
- Bulletin:
- FSB 386-007
- Component:
- 103000 power train:automatic transmission
- Summary:
- Vehicle speed sensor. on certain mack trucks built from 5/7/2012 to 11/07/2014 with the m-drive transmission, the vehicle speed sensor (vss) may fail internally. this is due to a manufacturing defect of the sensor. this failure may cause f
- Bulletin:
- PI 0855
- Component:
- 118000 electrical system: software
- Summary:
- Obd2013 software updates. software updates with enhancements are available for the engine control module (ecm) and aftertreatment control module (acm) for mack mp7, mp8 and mp10 engines on obd2013 vehicles built from february 1, 2013 to fe
- Bulletin:
- FSB 514-001
- Component:
- 030000 brakes (pws)
- Summary:
- Brake s-cam, replacement, some mack chu, and cxu trucks built after 05/13/2013, equipped with bendix brake scams on the steer axle may require replacement to reduce or eliminate brake noise during braking.
- Bulletin:
- PI 0826
- Component:
- 118000 electrical system: software
- Summary:
- Ecm and acm software updates, software updates with enhancements are available for the engine control module (ecm) and aftertreatment control module (acm) for vehicles built from the start of obd2013 production to may 29, 2013.
- Bulletin:
- PI 0831
- Component:
- 118000 electrical system: software
- Summary:
- Ecm and acm software updates, software updates with enhancements are available for the engine control module (ecm) and aftertreatment control module (acm) for vehicles built from may 30, 2013 to october 4, 2013.
- Bulletin:
- PI 0836
- Component:
- 060000 engine (pws)
- Summary:
- Crd 150/151 carrier inspection cover, replacement, a manufacturing defect has been identified affecting carriers built from december 2012 through january 2013. the issue is molding flash that may be extending into the o-ring groove at the 1
- Bulletin:
- FSB 371-046
- Component:
- 160000 structure
- Summary:
- Frame rail ground stud, on certain mack trucks built from 01/01/2010 to 10/7/2013 the main ground stud, located on the frame rail behind the battery box, may have been improperly torqued. this improper torque may have allowed corrosion inhi
- Bulletin:
- FSB 371-047
- Component:
- 110000 electrical system
- Summary:
- Power wires, rerouting, certain mack chu, cxu, gu, and td truck models built between 01/01/07 and 10/22/13, utilizes two (red) power wires that route from the bussed electrical center (bec) and behind the radio. the (red) power wires could
- Bulletin:
- FSB 722-002
- Component:
- 030000 brakes (pws)
- Summary:
- Interference between the brake lining and the spring cap was discovered on some mack chu, cxu, gu, td, leu, mru trucks equipped with 203 mm (8 in) rear drum brakes and camelback rear suspension.
- Bulletin:
- PI 0850
- Component:
- 021244 suspension:front:springs:leaf spring assembly:u-bolt, leaf spring to axle
- Summary:
- The front axle u-bolt wedges were installed incorrectly on some mack chu trucks built between 11/11/2013 and 02/24/2014. the incorrect installation of the wedge caused the ubolts to bend on the front axle.
- Bulletin:
- PI 0849
- Component:
- 020000 suspension
- Summary:
- The front axle u-bolt wedges were installed incorrectly on some mack chu trucks built between 11/11/2013 and 02/24/2014. the incorrect installation of the wedge caused the ubolts to bend on the front axle.
- Bulletin:
- FSB 593-013
- Component:
- 118500 electrical system: integrated trailer brake control
- Summary:
- On some mack chu, cxu, gu, and td truck models built between 04/31/2008 and 05/12/2014, the solenoid valve for the grade gripper feature is prone to internal contamination in harsh environments. the internal contamination of the solenoid va
- Bulletin:
- FSB593013
- Component:
- 353000 equipment:electrical
- Summary:
- "grade gripper solenoid, replacement. on some mack chu, cxu, gu, and td truck models built between 04/31/2008 and 05/12/2014, the solenoid valve for the grade gripper feature is prone to internal contamination in harsh environments. the i
- Bulletin:
- FSB 371-048
- Component:
- 012000 steering:column
- Summary:
- Cab harness insulation, installation. cab wiring harness may experience chafing.
- Bulletin:
- FSB 364-037
- Component:
- 118000 electrical system: software
- Summary:
- Vehicle electronic control unit (vecu), reprogramming, 5th wheel slide.
- Bulletin:
- PI 0859
- Component:
- 353000 equipment:electrical
- Summary:
- Front radar, failure. certain mack chu, cxu, and gu trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. the terminal seal
- Bulletin:
- FSB 722-005
- Component:
- 020000 suspension
- Summary:
- Twin y suspension, trailing blade, replacement. some mack chu, cxu, csm, and cmm trucks built 06/13/2013 through 09/25/2015 and equipped with twin-y suspension may require replacement of the twin-y trailing blades with a more robust design
- Bulletin:
- FSB 722-004
- Component:
- 020000 suspension
- Summary:
- Twin y suspension, trailing blade, replacement. some mack chu and cxu trucks built 06/13/2013 through 09/25/2015 and equipped with twin-y suspension may require replacement of the twin-y trailing blades with a more robust design. the new
- Bulletin:
- FSB 364-037
- Component:
- 117000 digital instrument panel
- Summary:
- Vehicle electronic control unit (vecu), reprogramming fifth wheel slide. on certain mack models, built between 09/04/2010 and 08/15/2014, with an air slide 5th wheel, there will be no warning when the output from the vecu gets shorted to g
- Bulletin:
- PI 0842
- Component:
- 355100 equipment:other:labels
- Summary:
- There are twenty-eight (28) 2014 model year vehicles that were produced with a preproduction engine emission certification label. these vehicles need to have the preproduction engine emission certification label removed and replaced with a
- Bulletin:
- FSB 284-048
- Component:
- 060000 engine (pws)
- Summary:
- Some mack vehicles with mp engines built between january 2004 and january 2013 may experience a main oil gallery pressure sensor or piston cooling jet pressure sensor failure that leads to oil contamination into the engine wire harness.
- Bulletin:
- FSB 364-031
- Component:
- 110000 electrical system
- Summary:
- Trip reset error, vehicle electronic control unit (vecu), reprogramming
- Bulletin:
- PI 0829
- Component:
- 060000 engine (pws)
- Summary:
- The aftertreatment selective catalytic reduction (scr) outlet pipe band clamps and heat shield fastener on certain mack vehicles built between june 28, 2013 and july 23, 2013 were not torqued correctly.
- Bulletin:
- FSB 593-013A
- Component:
- 100000 power train
- Summary:
- Grade gripper solenoid, replacement. on some mack chu, cxu, gu, and td truck models built between 04/31/2008 and 11/30/2015, the solenoid valve for the grade gripper feature is prone to internal contamination in harsh environments. the int
- Bulletin:
- PI 0859A
- Component:
- 110000 electrical system
- Summary:
- Front radar, failure. certain mack chu, cxu, and gu trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. the terminal seal
- Bulletin:
- FSB 366-002
- Component:
- 110000 electrical system
- Summary:
- Front radar, failure. certain mack chu, cxu, and gu trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. the terminal seal
- Bulletin:
- PV729-PI0859A
- Component:
- 110000 electrical system
- Summary:
- Front radar, failure. certain mack chu, cxu, and gu trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. the terminal seal
- Bulletin:
- FSB 722-004A
- Component:
- 020000 suspension
- Summary:
- Twin y suspension, trailing blade, replacement. some mack chu and cxu trucks built 06/13/2013 through 09/25/2015 and equipped with twin-y suspension may require replacement of the twin-y trailing blades with a more robust design. the new
- Bulletin:
- FSB 722-005A
- Component:
- 020000 suspension
- Summary:
- Twin y suspension, trailing blade, replacement. some mack chu, cxu, csm, and cmm trucks built 06/13/2013 through 09/25/2015 and equipped with twin-y suspension may require replacement of the twin-y trailing blades with a more robust design
- Bulletin:
- PI 0859A1
- Component:
- 110000 electrical system
- Summary:
- Front radar, failure. certain mack chu, cxu, and gu trucks built between 11/11/2013 and 01/14/2015, equipped with front radar may experience loss of front object detection or erratic operation of cruise control functions. the terminal seal
- Bulletin:
- PI 0861
- Component:
- 101000 power train:clutch assembly
- Summary:
- On certain mack chu, cxu, gu, and td trucks built between 07/06/2009 through 09/26/2014, equipped with 'engine start condition, clutch pedal fully depressed' feature and has a relay center electronic power distribution module (epdm) gasket
- Bulletin:
- FSB 373-019
- Component:
- 100000 power train
- Summary:
- On some mack models built with an allison transmission, between may 16, 2011 and august 9, 2013, may experience multiple open circuits in the 31 way transmission connector. this is due to a supplier manufacturing issue with the connector.
- Bulletin:
- PI 0831
- Component:
- 118000 electrical system: software
- Summary:
- Software updates with enhancements are available for the engine control module (ecm) and aftertreatment control module (acm) for vehicles built from may 30, 2013 to october 4, 2013.
- Bulletin:
- PI 0826
- Component:
- 118000 electrical system: software
- Summary:
- Software updates with enhancements are available for the engine control module (ecm) and aftertreatment control module (acm) for vehicles built from the start of obd2013 production to may 29, 2013.
- Bulletin:
- PI 0833
- Component:
- 030000 brakes (pws)
- Summary:
- Some units without hand control valves have been built with a double check valve installed to the tpv. this is a misbuild and the double check valve needs to be removed for proper operation of the trailer brake system.
- Bulletin:
- FSB 284-047
- Component:
- 060000 engine (pws)
- Summary:
- Some mack vehicles built between 2004 and october 2013 experience an oil level sensor failure that leads to oil contamination into the engine wire harness.
- Bulletin:
- FSB 284-047
- Component:
- 060000 engine (pws)
- Summary:
- Some mack vehicles built between 2004 and october 2013 experience an oil level sensor failure that leads to oil contamination into the engine wire harness.
- Bulletin:
- FSB 213-002
- Component:
- 060000 engine (pws)
- Summary:
- In some instances the exhaust rocker piston cap screw may become loose and back out causing loss of engine compression, or a mechanical injector diagnostic trouble code (dtc).
- Bulletin:
- FSB 728-003
- Component:
- 020000 suspension
- Summary:
- Some mack cxu612/chu612 trucks built from october 4, 2010 to february 6, 2017 with single rear axle hendrickson air suspension (rad-a2h) and short tapered frame rail (rfl830, rf-tap28/rf-ta28t) could have the level arm rise above the frame
- Bulletin:
- FSB 237-020
- Component:
- 103700 power train:automatic transmission:torque converter
- Summary:
- Mack chu, cxu, gr, gu, and pi trucks built from 2009 to 2017 and equipped with mp7, mp8, and mp10 engines (em-usa10, em-usa14, and em-usa17), will require a new torque specification for the unit injector yoke hold-down bolt.
- Bulletin:
- EC0017
- Component:
- 060000 engine (pws)
- Summary:
- Mack trucks has determined that certain 2013 through 2015 year model chu, cxu, gu and mru trucks equipped with a mp8 model engine may be equipped with an improperly functioning on-board emission-related diagnostic system.
- Bulletin:
- PI 0861
- Component:
- 101100 power train:clutch assembly:pedal/linkage
- Summary:
- Clutch pedal micro switch replacement
- Bulletin:
- FSB 237-020rev
- Component:
- 103700 power train:automatic transmission:torque converter
- Summary:
- Mack chu, cxu, gr, gu, and pi trucks built from 2009 to 2017 and equipped with mp7, mp8, and mp10 engines (em-usa10, em-usa14, and em-usa17), will require a new torque specification for the unit injector yoke hold-down bolt. effective immed
- Bulletin:
- FSB373-024
- Component:
- 103000 power train:automatic transmission
- Summary:
- Some mack trucks equipped with mdrive transmissions built between september 6, 2010 and august 14, 2017 may have pto solenoid bracket or transmission harness connector failures due to excessive vibration.
- Bulletin:
- FSB237-020
- Component:
- 070000 fuel system, gasoline
- Summary:
- Unit injector yoke hold-down bolt torque specification
- Bulletin:
- FSB431-010
- Component:
- 103000 power train:automatic transmission
- Summary:
- This procedure is to repair mdrive transmissions in the field that exhibit a grinding noise when the transmission range shifts (for example: between 6th and 7th gear) built between 01/01/2013 and 08/18/2014.
- Bulletin:
- FSB652-005
- Component:
- 020000 suspension
- Summary:
- On some mack chu, cxu, gu, td, leu, lr, and mru trucks built from 01/14/2013 and 01/20/2017, the v-stay carrier bolt hole in the mride suspension may become stripped, causing the v-stay torque rod bolt to pull free from the carrier housing.
- Bulletin:
- FSB431-010
- Component:
- 100000 power train
- Summary:
- This procedure is to repair mdrive transmissions in the field that exhibit a grinding noise when the transmission range shifts (for example: between 6th and 7th gear) built between 01/01/2013 and 08/18/2014.
- Bulletin:
- K53510452
- Component:
- 070000 fuel system, gasoline
- Summary:
- Expired - refer to k93039325 - mack chassis - snm16-032 def (diesel exhaust fluid) contamination in diesel fuel.new solution released with improved information
- Bulletin:
- K42708399
- Component:
- 117000 digital instrument panel
- Summary:
- Diagnostic trouble code ( dtc ) p0422 lighting the malfunction indicator light ( mil ) - obd15 and obd16 chassis (non-common rail).updated to reflect release of fsb284-064 (above)
- Bulletin:
- K84412328
- Component:
- 117000 digital instrument panel
- Summary:
- Diagnostic trouble code ( dtc ) p249c intermittently lighting the malfunction indicator lamp ( mil ) - obd15 and obd16, model year ( my ) 2016 and 2017 chassis.updated to reflect release of fsb284-064 (above)
- Bulletin:
- K03179378
- Component:
- 073100 fuel system, gasoline:fuel injection system:fuel rail
- Summary:
- Service only regen requested with no warning. diagnostic trouble codes ( dtc ) p24a4 / p10fe active or inactive with several counts - obd15 and obd16 conventional chassis; does not apply to us17 (common rail fuel system) chassis.updated to
- Bulletin:
- K86412082
- Component:
- 117000 digital instrument panel
- Summary:
- Engine diagnostic trouble codes ( dtc's ) p24a0 and p249f lighting the malfunction indicator lamp ( mil ) - obd15 (commonly model year 2016) and newer.updated to reflect release of fsb284-064 (above)
- Bulletin:
- K45941512
- Component:
- 062000 engine and engine cooling:cooling system
- Summary:
- Mack chassis - diagnostic trouble code ( dtc ) p0128, diagnostic and repair - us14+obd13 (commonly year model 2015) and newer.updated to reflect release of fsb284-064 (above)
- Bulletin:
- K86094641
- Component:
- 060000 engine (pws)
- Summary:
- Mack chassis - diagnostic trouble code ( dtc ) p226c intermittently lighting the malfunction indicator lamp ( mil ) - obd15 and obd16 conventional chassis.updated to reflect release of fsb284-064 (above)
- Bulletin:
- K82320750
- Component:
- 101000 power train:clutch assembly
- Summary:
- Automated manual transmission ( amt - f ) ( mdrive ) clutch valve unit ( cvu ) makes intermittent buzzing noise with the key on and engine off.changed repair information to reflect new software available.
- Bulletin:
- K95422063
- Component:
- 060000 engine (pws)
- Summary:
- Mack chassis - diagnostic trouble code ( dtc ) p2459 lighting the malfunction indicator lamp ( mil ); possible frequent regeneration requests - obd15 and newer chassis
- Bulletin:
- K43056254
- Component:
- 063100 engine and engine cooling:exhaust system:emission control
- Summary:
- Mack chassis - aftertreatment control module ( acm ) not visible in premium tech tool ( ptt ).added more checks and procedures
- Bulletin:
- K14701433
- Component:
- 091130 fuel system, other:storage:tank assembly:pressure relief devices
- Summary:
- Diagnostic trouble code ( dtc ) p009e - 73 - fuel pressure relief control performance / stuck off - ghg17 ( us17 ) chassis with common rail fuel system.changed repair instructions to reflect new procedures
- Bulletin:
- FSB284064
- Component:
- 060000 engine (pws)
- Summary:
- Ecm and acm reprogramming, obd2015
- Bulletin:
- K58557784
- Component:
- 070000 fuel system, gasoline
- Summary:
- Fuel injector offset learning diagnostic trouble codes ( dtc ) / fault codes logged in engine control module ( ems ); possible rough / uneven idle - obd15 chassis
- Bulletin:
- K14701433
- Component:
- 118000 electrical system: software
- Summary:
- Diagnostic trouble code ( dtc ) p009e - 73 - fuel pressure relief control performance / stuck off - ghg17 ( us17 ) chassis with common rail fuel system, updated to reflect ghg17 software release
- Bulletin:
- K04342327
- Component:
- 355200 equipment:other:owners/service/other manual
- Summary:
- Diagnostic trouble code ( dtc ) p0420 illuminating the malfunction indicator lamp (mil) - us17 (ghg17, common rail fuel system) chassis only
- Bulletin:
- K01050303
- Component:
- 355200 equipment:other:owners/service/other manual
- Summary:
- Diagnostic trouble code ( dtc ) p0471 illuminating the malfunction indicator lamp (mil) - us17 (ghg17, common rail fuel system) chassis only
- Bulletin:
- K47547856
- Component:
- 353000 equipment:electrical
- Summary:
- Particulate matter ( pm ) sensor diagnostic trouble codes ( dtc ) illuminating the malfunction indicator lamp ( mil ); tech tip tt-014-2016 - obd16 and newer emissions (commonly model year 2017, includes common rail fuel system chassis), re
- Bulletin:
- K72614548
- Component:
- 110000 electrical system
- Summary:
- Diagnostic trouble code ( dtc ) p02fa illuminating the malfunction indicator lamp (mil) - us17 (ghg17, common rail fuel system) chassis only
- Bulletin:
- K09336850
- Component:
- 063100 engine and engine cooling:exhaust system:emission control
- Summary:
- Mack chassis - diagnostic trouble code ( dtc ) p2002, diagnostic information - us10+obd13, us14+obd13, us14+obd15, us14+obd16 emissions (non-common rail fuel system), commonly model years 2014 to 2017
- Bulletin:
- K09336850
- Component:
- 060000 engine and engine cooling
- Summary:
- Mack chassis - diagnostic trouble code ( dtc ) p2002, diagnostic information - us10+obd13, us14+obd13, us14+obd15, us14+obd16 emissions (non-common rail fuel system), commonly model years 2014 to 2017
- Bulletin:
- K09336850
- Component:
- 060000 engine and engine cooling
- Summary:
- Mack chassis - diagnostic trouble code ( dtc ) p2002, diagnostic information - us10+obd13, us14+obd13, us14+obd15, us14+obd16 emissions (non-common rail fuel system), commonly model years 2014 to 2017
- Bulletin:
- K85205915
- Component:
- 010000 steering
- Summary:
- Mack chassis - cxu, chu models equipped with bendix brakes, bendix s-cam on steer axle - excessive brake noise; diagnosis and repair information; fsb 514-001, brake s-cam, replacement - model years 2014 to 2018
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