2001 MACK MR Recalls (3)

Campaign:
01V189004 on 07/31/2001
Component:
Service brakes, air:controls
Manufactured:
09/18/2000 - 03/29/2001
Affected:
8,268
Defect:
Vehicle description: heavy duty trucks equipped with certain meritor-wabco brake system two and four port relay valves. the valve may stick open when a high-pressure application is released.
Consequence:
When the valve sticks open, it can result in a total loss of air from either the service or the park brake system. the driver may lose braking ability under a service application, possibly resulting in a vehicle crash.
Correction:
Dealers will replace these valves. owner notification began november 16, 2001. 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 mack at 1-610-709-3011 or meritor wabco at 800-535-5560.
Notes:
Also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

Campaign:
04V159000 on 04/09/2004
Component:
Fuel system, other:storage:tank assembly:pressure relief devices
Manufactured:
04/25/1995 - 02/08/2004
Affected:
317
Defect:
On certain chassis built with lng engines, the nexgen lng tank's primary and secondary relief valves could fail to open and relieve tank pressure.
Consequence:
This could cause ice buildup on the discharge side of the primary and secondary pressure system allowing the relief system to freeze and become blocked resulting in over pressurization of the lng tanks creating the risk of catastrophic tank rupture which could cause serious injury or death.
Correction:
Dealers will retrofit the lng tanks with a new primary relief valve pipe away tube and a new ventilated shroud. the recall began april 6, 2004. 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 mack at 1-610-709-3337.
Notes:
Mackrecall no sc0287.customers can contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

Campaign:
04V258000 on 06/07/2004
Component:
Service brakes, air:drum
Affected:
36
Defect:
On certain class 8 chassis built with hendrickson lift axles which contained webb brake drums, the brake drums could experience premature crack of the braking surface resulting in reduction or complete loss of braking on that wheel end or loss of brake drum pieces.
Consequence:
Loss of braking ability could result in a vehicle crash, possibly causing injuries or death.
Correction:
Webb wheel is conducting the owner notification and remedy for this campaign. webb will notify customers, inspect the brake drums and replace any drums that fail inspection. owners should contact webb at 1-800-633-3256 or mack at 1-610-709-3337.
Notes:
Customers can contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

2001 MACK MR TSBs (5)

Bulletin:
FSB-214-024
Component:
063200 engine and engine cooling:exhaust system:manifold/header/muffler/tail pipe
Summary:
Mack trucks: there is revised mounting hardware for the exhaust manifold and turbocharger. *rm
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:
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:
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

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