GMC 5500 1960: ENGINE AND ENGINE COOLING:ENGINE

General Information

NHTSA Campaign ID Number: 71V101000

Make Model Year
GMC 5500 1960
Date Owners Notified Date Received by ODI Date Added to Database
1971-06-09 1971-06-11 1979-10-12

Manufacturers Involved: General Motors, LLC

Component: ENGINE AND ENGINE COOLING:ENGINE

Potential Number Of Units Affected: 22206

Report Initiator: MFR MFR Report

Notes

GMC CAMPAIGN NO 65-C-2.SERIES 5000, 5500, 6000 AND 6500 TRUC KS AND SERIES5000 SCHOOL BUSES EQUIPPED WITH 401 OR 478 GASOL INE ENGINES.SCHOOL BUS.POSSIBILITY THAT 14" FLANGED-TYPE F LYWHEEL AND CLUTCH ASSEMBLY HAS INTERGRALFLANGE AS PART OF FL YWHEEL.COULD CREATE SAFETY HAZARD WHEN ROTATING SPEEDSARE A PPROXIMATELY DOUBLE THE GOVERNED ENGINE SPEED.IMPROPER DRIVI NGTECHNIQUES OR DRIVER ERROR, SUCH AS MISSHIFTING TRANSMISSIO N WHEN DOWNSHIFTINGALSO CAN CAUSE THIS CONDITION.'CORRECT B Y INSTALLING NEW FLYWHEEL AND CLUTCHASSEMBLY.'