Subject: NEW DESIGN CYLINDER HEADS PRODUCTION CHANGE INFORMATIONModel and Year: 1986-88 B, F, Y CARS WITH 5.7L (VIN CODE 6, 8) AND 5.0L (VIN CODE H, F, G) ENGINES1989-90 B, F, Y CARS WITH 5.0L (VIN CODE F) AND 5.7L (VIN CODE 8) ENGINESAPPLICATION:... Read More
Engine - Drivetrain
Subject: MULTEC FUEL INJECTORS/CLEANING INFORMATION Model and Year:1986-90 CELEBRITY1986-91 CAMARO, CAVALIER, CORVETTE1987-91 CORSICA, BERETTA1990-91 LUMINA, STORMSource: Chevrolet Service BulletinBulletin Number: 91-312-6E - (05/15/1991) THIS... Read More
Subject: Spark Plug Service on Engines with Aluminum HeadsModel and Year: 1986 Corvette 5.7 L PFI L98 (VIN Code 8) EngineSource: Chevrolet Dealer Sevice BulletinBulletin Number: 86-82, Section 6ADate: May, 1986 TO: ALL... Read More
Subject: TAIL PIPE SMOKE ON START-UP (INSTALL NEW VALVE SEAL KIT)Model and Year: 1987-91 CAPRICE, CAMARO AND CORVETTE WITH 5.0L AND 5.7L ENGINES1987-91 C/K, RN, G AND P TRUCKS WITH 5.0L AND 5.7L ENGINES Source: Chevrolet Service BulletinBulletin... Read More
Subject: CAMPAIGN: EVAPORATIVE EMISSION HOSES Model and Year: 1988-89 CHEVROLET CORVETTE Source: Chevrolet Service Bulletin Bulletin Number: 89C25 - (08/23/1993) To: All Chevrolet Dealers General Motors has determined that certain 1988... Read More
Subject: INTERMITTENT NO START/CRANKS REPLACE MASS AIR FLOW RELAYS Model and Year: 1988-89 CHEVROLET CORVETTESource: Chevrolet Service BulletinBulletin Number: 89-327-6D - (07/10/1991) Condition: On the 1988 - 89 Y Car, the engine may have... Read More
Subject: COOLANT USAGE RECOMMENDATION SERVICE INFORMATION Model and Year:ALL 1988-91 PASSENGER CARS AND TRUCKSSource: Chevrolet Service BulletinBulletin Number: 91-62-6B - (08/21/1990) TO: ALL CHEVROLET DEALERS THIS INFORMATION SUPERSEDES INFORMATION... Read More
Overview: The 1990 to 1996 Corvettes are equipped with an Engine Oil Life Monitor. The Central Control Module (CCM) calculates the lifespan of the engine oil by measuring engine rpm, and oil temperature over time. Regardless of... Read More
Subject: SERV MANUAL UPDATE-SEC.6E3 DRIVEABILITY AND EMISSIONS Model and Year: 1990 CORVETTE WITH 5.7L L98 (VIN CODE 8) ENGINE Source: Chevrolet Service Bulletin Bulletin Number: 90-350-6E - (09/13/1990) The attached Code 34 diagnostic... Read More
Subject: FUEL PUMP DRIVEABILITY ISSUE DIAGNOSTIC INFORMATION Model and Year: 1991-92 CAMARO, CAVALIER, CORSICA, BERETTA, LUMINA AND CORVETTE 1992 C1, K1, L/M AND S/T TRUCKS 1992 LUMINA APV Source: Chevrolet Service Bulletin Bulletin... Read More