Mack Gu 2013

Model Gu made in 2013 by Mack got 2 recalls as well as 13 service bulletins. Technical service bulletines regarding engine and engine cooling and exterior lighting. There were some recalls concerningservice brakes, air and wheels.

Model 2013

Recalls


CampaignManufacturerManufacturing dateType# of units affectedDate Owner notified MfgRecall Initiated byManufacturers of recalled vehicles/productsReport Recieved DateRecord Creation DateRegulation Part NumberFMVSS Number
SERVICE BRAKES, AIR - SUPPLY - CHECK VALVE
12V037000MACK TRUCKS, INCfrom 12/02/2010 to 01/18/2012V (Vehicle)204/23/2012MFRMACK TRUCKS, INC02/01/201202/03/2012
Defect SummaryMack is recalling certain model year 2012-2013 gu, manufactured from december 2, 2010, through january 18, 2012, and equipped with bendix atr-6 traction relay valves. in extremely cold conditions, these bendix relay valves may potentially develop internal leakage. internal leakage can lead to air pressure being delivered to affected primary or secondary brake causing continuous brake application.
Consequence SummaryInadvertent brake application can cause the brakes to overheat and lead to a fire. inadvertent brake application can cause the wheels to lock-up leading the driver to lose control of the vehicle, increasing the risk of a crash.
Corrective SummaryMack will notify owners, and provide a temporary repair until bendix develops a permanent remedy. this service will be performed free of charge. owners may contact mack trucks at 1-800-866-1177.
NotesMack trucks' recall number is sc0363.owners may also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to http://www.safercar.gov .
WHEELS
12V499000MACK TRUCKS, INCfrom 05/01/2012 to 10/01/2012V (Vehicle)2506MFRMack Trucks, Inc.12/21/201210/17/2012
Defect SummaryMack trucks, inc. (mack) is recalling certain model year 2013 chu, cxu, gu, leu, and mru trucks, equipped with model number 90262, 90541, or 10073 hayes lemmerz steel wheels. due to an inadequate weld between the wheel disc and rim, the disc can separate from the rim.
Consequence SummarySeparation of the rim and tire from the vehicle can result in a loss of control and a vehicle crash.
Corrective SummaryMack will notify owners, and dealers will replace the wheels on affected vehicles, free of charge. the recall is expected to begin on, or before, january 11, 2013. owners may contact mack at 1-336-393-2000 for more information.
NotesMack's recall campaign number is sc0368.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.

Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING - ENGINE
FSB-212-00204/01/201210044248Mack trucks: oil seepage at flywheel housing. this problem has already been solved in production, but the production solution is not compatible with previous generation flywheel housings. *js05/24/2012
FSB-255-02304/01/201210044247Mack trucks: severe fretting damage of the engine variable geometry turbocharger actuator (engine vgt actuator) harness and turbine shaft speed sensor (tss) connectors may cause an unreliable signal to the engine vgt actuator. also include05/24/2012
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE - TURBO-CHARGER
FSB-258-03307/01/201210044959Mack trucks: engine tubocharger compressor bypass valve, airline routing. this document covers the procedure for routing the flexible air line around the front of the engine if the existing steel air line fail. *js08/08/2012
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL - GAS RECIRCULATION VALVE (EGR VALVE)
FSB-293-01611/01/201210048539Mack truck: the old oil supply line, for exhaust gas recirculation (egr) valve, was replaced with new oil supply line with machined fitting brazed on end of tube preventing leakage on oil filter housing. models cxu, gu. no model years li12/28/2012
EXTERIOR LIGHTING - BRAKE LIGHTS
FSB-372-01107/01/201210044963Mack trucks: four way flasher abs fault. certain vehicles equipped with a webb solid state flasher, built from jan. 1, 2010 to june 29, 2012 may experience an active abs fault when the 4 way flasher is enabled. *js08/08/2012
FUEL SYSTEM, OTHER - STORAGE - TANK ASSEMBLY
PI-080108/01/201210045823Marck truck: information regarding two upper huck bolts for fuel tank j bracket and aftertreatment control module (acm). to provide necessary clearance, if interference exists, cut off end of huck bolts and remove acm. models gu. no mo09/17/2012
FUEL SYSTEM, OTHER - STORAGE - TANK ASSEMBLY - PRESSURE RELIEF DEVICES
FSB-293-00707/01/201210044962Mack trucks: egr differential pressure sensor pin fretting. severe fretting damage of the engine exhaust gas recirculation differential pressure sensor's (egr differential pressure sensor) connector may cause an unreliable signal to the sen08/08/2012
(PWS)
FSB-364-03410/01/201210048579Mack truck: while driving, and foot brake deactivates cruise control, engine brake fails to function properly until manually turned off and then on. models chu, cxu, gu, td. no models years listed. *pe12/28/2012
SERVICE BRAKES, AIR - SLACK ADJUSTERS
PI-079810/01/201210048719Mack trucks: information on replacement procedures for the slack adjuster control arm and suspension shock absorber interference on rear/rear drive axle. model gu. no model years listed. *pe01/03/2013
SUSPENSION - FRONT - SPRINGS - AIR SUSPENSION - LINES AND FITTINGS
PI-078906/01/201210044821Mack truck: information regarding the sleeper cab suspension leveling valve bracket that was installed incorrectly. also, the support bracket for air spring, incorrectly mounted on frame, causing cab shock to extend fully when air sprin07/31/2012
SUSPENSION - REAR - SHOCK ABSORBER
PI-079810/01/201210048719Mack trucks: information on replacement procedures for the slack adjuster control arm and suspension shock absorber interference on rear/rear drive axle. model gu. no model years listed. *pe01/03/2013
TIRES
PI-079911/01/201210048399Mack truck: the support brackets, used with wide base wheel/tire combinations equipment, provide additional strength that is required with longer cam tubes, were not installed at factory, and need to be replaced. models chu, cxu, gu. n12/18/2012
WHEELS
PI-079911/01/201210048399Mack truck: the support brackets, used with wide base wheel/tire combinations equipment, provide additional strength that is required with longer cam tubes, were not installed at factory, and need to be replaced. models chu, cxu, gu. n12/18/2012