1999 GMC C7500 Recalls (4)

Campaign:
99V320000 on 11/17/1999
Component:
Power train:automatic transmission
Manufactured:
12/31/1998 - 01/30/1999
Affected:
391
Defect:
Vehicle description: medium duty conventional cab trucks and school bus chassis equipped with an automatic transmission, have transmission shift cable end rods that have not been crimped to the proper specification. over time, the shift cable could be pulled out of the rod end causing the driver to lose the ability to manually change transmission gears.
Consequence:
with this condition, the vehicle may move in a direction not anticipated by the driver, increasing the risk of a crash.
Correction:
Dealers will install a new shift cable.
Notes:
Gm recall no. 99040.owner notification began november 30, 1999. owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact chevrolet at 1-800-222-1020 or gmc at 1-800-462-8782. also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

Campaign:
00V236000 on 08/24/2000
Component:
Power train:automatic transmission
Manufactured:
04/30/1998 - 07/30/1999
Affected:
12,603
Defect:
Vehicle description: medium duty trucks. the transmission fluid could leak from a heat degraded transmission fluid cooler hose onto the exhaust system on the passenger's side of the vehicle.
Consequence:
This condition could result in a fire.
Correction:
Dealers will install a new transmission fluid cooler inlet hose and outlet hose designed with a heat sleeve and ensure adequate clearance to the exhaust system take-down pipe. dealers will also inspect the right-hand exhaust manifold seal for leakage, and replace if necessary.
Notes:
Owner notification will be conducted in phases and the first phase began september 26, 2000. owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact chevrolet at 1-800-222-1020 or gmc at 1-800-462-8782.also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

Campaign:
00V232008 on 09/25/2000
Component:
Service brakes, air:antilock
Manufactured:
04/30/1998 - 07/30/1999
Affected:
30,000
Defect:
Vehicle description: school buses, medium duty trucks and tractors built with bendix air abs with an ec-17 1030r electronic control unit (ecu), there have been reports of unwanted abs activation at low speeds caused by 1) chafed abs wheel speed sensor wires on rotating parts or 2) a damaged component at the wheel end that generates a certain type of erratic sensor signal.
Consequence:
This condition could cause the abs ecu to exhaust the air at the air brake modulators for one or more of the wheels. this could result in extended braking distances and a possible crash.
Correction:
Dealers will replace the abs ecu.
Notes:
Owner notification began december 14, 2000 for the b7 series school buses and on march 15, 2001, for the medium duty trucks and tractors. owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact chevrolet at 1-800-222-1022 or gmc at 1-800-462-8782. also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

Campaign:
02V287000 on 11/05/2002
Component:
Engine and engine cooling:engine:gasoline
Manufactured:
09/30/1998 - 06/29/1999
Affected:
2,011
Defect:
Certain medium duty c-series and b7 school bus chassis equipped with a 7.4 liter gas engine and an impco lpg conversion kit. some of these vehicles may have engine backfires with sufficient force to damage the engine air intake system and the air cleaner filter element.
Consequence:
if the damaged air cleaner parts are dislodged from their normal position, these parts could come in contact with the hot exhaust manifold and/or hot exhaust gas recirculation (egr) valve tube resulting in a possible engine compartment fire.
Correction:
Dealers will install a redesigned mixer bonnet and air cleaner housing cover, selective upgrades in various connections related to the air induction system, and if needed, a new air cleaner filter. owner notification began december 18, 2002. owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact chevrolet at 1-800-222-1020 or gmc at 1-800-462-8782.
Notes:
Gm recall no. 02044. also, customers can contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

1999 GMC C7500 TSBs (19)

Bulletin:
990620014
Component:
062100 engine and engine cooling:cooling system:radiator assembly
Summary:
On some medium duty conventional models, the radiator surge tank cap contacting underside of hood. *tt
Bulletin:
990604022
Component:
061000 engine and engine cooling:engine
Summary:
Concerns with the coolant alarm and oil pressure alarm activating when the vehicle is stopped and the engine returns to idle. *tt
Bulletin:
000863001A
Component:
160000 structure
Summary:
Some owners may comment on the cab assist step cracking around the mounting bolts. *tt
Bulletin:
000863001
Component:
160000 structure
Summary:
Some vehicles may experience on the cab assist step cracking around the mounting bolts. *mjs
Bulletin:
000604016
Component:
061100 engine and engine cooling:engine:gasoline
Summary:
Some customers may comment on an intermittent hard start or no start, and / or possible malfunction indicator light with a diagnostic trouble code p1345. *tt
Bulletin:
00070
Component:
103600 power train:automatic transmission:cooling unit and lines
Summary:
Subject regarding transmission oil cooler line degradation. *tt
Bulletin:
000731001
Component:
101000 power train:clutch assembly
Summary:
Experiencing noisy release bearing, slipping clutch or inoerative clutch. *tt
Bulletin:
00070
Component:
103600 power train:automatic transmission:cooling unit and lines
Summary:
General motors has decided that a defect which relates to motor vehicle safety exists in certain medium duty vehicles. some of these vehicles exhibit a condition in which transmission fluid may leak from a heat degraded transmission fluid
Bulletin:
000604047
Component:
061100 engine and engine cooling:engine:gasoline
Summary:
Some medium duty models with 3126 caterpillar diesel engine and allison automatic transmission may exhibit an engine speed power takeoff (pto) operation returning to idle for no apparent reason. *tt
Bulletin:
000525004
Component:
036400 service brakes, hydraulic:antilock:abs warning light
Summary:
Some drivers may comment about the abs lamp illuminating. an abs diagnostic trouble code 0281 - brake switch circuit may have been set on those vehicles equipped with hydraulic brakes. the diagnostic trouble code will be stored in memor
Bulletin:
010138004
Component:
138120 visibility:defroster/defogger system:windshield:heater core
Summary:
Some drives may comment that the heater outlet hose is routed too close to the generator or that the hose contacts and rubs on the generator. *tt
Bulletin:
010843002
Component:
136000 visibility:windshield wiper/washer
Summary:
Some customers may comment that the windshield (w/s) washer reservoir shows an unexplained reduced fluid level after vehicle operation. *tt
Bulletin:
010603003
Component:
112000 electrical system:alternator/generator/regulator
Summary:
Some drivers may comment that the generator upper mounting bolt is breaking on certain conventional medium duty models. *tt
Bulletin:
010602013
Component:
062100 engine and engine cooling:cooling system:radiator assembly
Summary:
Some customers may comment that the radiator surge tank cap contacts the underside of the hood. *tt
Bulletin:
020604026
Component:
061100 engine and engine cooling:engine:gasoline
Summary:
This bulletin is being issued to assist technicians in efficiently diagnosing and correcting backfire and other related driveability concerns. *tt
Bulletin:
000601013A
Component:
061100 engine and engine cooling:engine:gasoline
Summary:
Information pertaining to the release of the exhaust manifold / turbocharger heat shield. *tt
Bulletin:
020729005
Component:
102000 power train:manual transmission
Summary:
Subject regarding vibration or transmission output shaft damage / oil seal leak on conventional cab medium duty models. *tt
Bulletin:
020604026A
Component:
061000 engine and engine cooling:engine
Summary:
Engine backfire and related driveability issues. *tt
Bulletin:
SB-06-02-32-013B
Component:
015100 steering:hydraulic power assist:pump
Summary:
Saab/hummer/gm: diagnostic tips/recommendations when power steering pump replacement is necessary. analysis of returned power steering (ps) pumps that had been replaced for noise, no power assist, no or low pressure and leaking conditio

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