Corvette Action Center Knowledgebase

1988 - 1993 Corvette: Service Bulletin: Click/Whine in 3rd/4th Gear

Subject: CLICK/WHINE IN 3RD/4TH GEAR INST. NEW CLUTCH FIBER PLATESModel and Year:1988-93 CAPRICE, CAMARO AND CORVETTE 1988-93 C/K, RN, S/T, M AND G TRUCKS 1990-93 L VANSource: Chevrolet Service BulletinBulletin Number: 93-228-7ATHIS BULLETIN CANCELS... Read More

1989 - 1990 Corvette: Service Bulletin: Transmission Exchange Program 6 Speed M/T (ML9)

Jul 29, 2014 1989 corvette, 1990 corvette, service bulletin, transmission, exchange program, 6-speed, manual transmission, transmission, ml9, rpo ml9, 91-89-7B 0 0 1388 0/5 (0 Vote)

Subject: TRANS. EXCHANGE PROGRAM 6 SPEED M/T (ML9)Model and Year: 1989-91 CORVETTE ZF 6-SPEED MANUAL TRANSMISSION WITH ML9 OPTIONSource: Chevrolet Service BulletinBulletin Number: 91-89-7B - (10/31/1990) TO: ALL CHEVROLET DEALERS THIS BULLETIN... Read More

1989 - 1991 Corvette: Service Bulletin: No/Delayed Reverse When Cold

Jul 29, 2014 1989 corvette, 1990 corvette, 1991 corvette, service bulletin, no reverse, delayed reverse, cold, 91-493-7A, hydra-matic, 4l60, transmission, automatic transmission 0 0 923 0/5 (0 Vote)

Subject: NO/DELAYED REVERSE WHEN COLD INSTALL REV. INPUT CLUTCH SEAL Model and Year: 1989-91 CAPRICE CAMARO AND CORVETTE 1989-91 C/K, R/V, S/T, G AND M TRUCKS 1990 L TRUCKS WITH 4L60 AUTOMATIC TRANSMISSION Source: Chevrolet Service... Read More

1989 - 1990 Corvette: Howling, or Squealing Sound Coming From Clutch

Jul 29, 2014 1989 corvette, 1990 corvette, howling, squealing, clutch, crankshaft, pilot, bushing, jim ingle 0 0 913 0/5 (0 Vote)

From Jim Ingle, GM Powertrain Engineer:"The problem you're most likely experiencing is a noisy crankshaft pilot bushing. There is a later design released for service that tends to retain grease better than the one you have and therefore doesn't... Read More

1988 - 1991 Corvette: Service Bulletin: Intermittent No-Start/No-Crank Diagnostic Service Procedure

Jul 28, 2014 1988 corvette, 1989 corvette, 1990 corvette, 1991 corvette, service bulletin, intermittent, no-start, no start, no-crank, no crank, diagnostic, service, procedure, clicking, starter, l98, l98 engine 0 0 2642 0/5 (0 Vote)

Subject: INTERMITTENT NO-START/NO-CRANK DIAGNOSTIC SERVICE PROCEDURE Model and Year:1988-91 CORVETTE WITH 5.7L ENGINESource: Chevrolet Service BulletinBulletin Number: 91-231-6D - (02/26/1991) Condition: An intermittent no start condition, with no... Read More

1989 - 1990 Corvette: Service Bulletin: Power Antenna May Not Retract

Jul 28, 2014 1989 corvette, 1990 corvette, service bulletin, power antenna, antenna, retract, 90-423-9A 0 1 1007 0/5 (0 Vote)

Subject: POWER ANTENNA MAY NOT RETRACT SEND RADIO TO DELCO FOR REPAIR Model and Year:1989-90 CAMARO,CORVETTE 1989-90 C/K TRUCK 1990 U VAN (These are the car and truck lines affected: F, Y; C/K, and U Van Trucks)Source: Chevrolet Service... Read More

1989 - 1990 Corvette: Service Bulletin: Wiper Motor Starts in High Speed Only

Jul 28, 2014 1989 corvette, 1990 corvette, service bulletin, wipers, wiper motor, high speed, 90-420-8E 0 0 909 0/5 (0 Vote)

Subject: WIPER MOTOR STARTS IN HIGH SPEED ONLY Model and Year: 1989-90 CELEBRITY CAMARO, CORSICA, BERETTA, LUMINA AND CORVETTE Source: Chevrolet Dealer Service Bulletin Bulletin Number: 90-420-8E THIS BULLETIN CANCELS AND SUPERSEDES... Read More

1989 - 1991 Corvette: Service Bulletin: New Delco-Loc II Setting Procedure and Information

Jul 28, 2014 1989 corvette, 1990 corvette, 1991 corvette, service bulletin, delco-loc, delco-loc II, setting, procedure, 91-138-9A 0 0 1717 0/5 (0 Vote)

Subject: NEW DELCO-LOC II SETTING PROCEDURE & INFORMATION Model and Year:1989-91 CAMARO AND CORVETTE1990-91 U-VAN (APV)Source: Chevrolet Service BulletinBulletin Number: 91-138-9A - (12/31/1990) TO: ALL CHEVROLET DEALERS THIS BULLETIN CANCELS AND... Read More

1985 - 1991 Corvette: L98 Engine Throttle Body Diagram

Jul 28, 2014 1985 corvette, 1986 corvette, 1987 corvette, 1988 corvette, 1989 corvette, 1990 corvette, 1991 corvette, l98, rpo l98, l98 engine, throttle body, diagram 0 3 4891 3.4/5 (5 Votes)

1986 - 1990 Corvette: Service Bulletin: New Design Cylinder Heads Production Change Information

Jul 28, 2014 1986 corvette, 1987 corvette, 1988 corvette, 1989 corvette, 1990 corvette, service bulletin, new design, cylinder head, cylinder heads, production, change, information, 90-246-6A 0 0 1259 0/5 (0 Vote)

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

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