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Model Year: 1990 w/ L98 or LT5 Engine Subject: Product Campaign 90C07 Instrument Panel Wire Abrasion Source: Chevrolet Dealer Product Campaign Bulletin Number: 90C07 Section:   8C Date: January, 1990 TO: ALL CHEVROLET DEALERS... Read More

Subject: SERVICE MAN. UPDATE SEC.9J A/B REV. SIR DIAGNOSTIC PROCEDURE Model and Year: 1990 CORVETTE Source: Chevrolet Service Bulletin Bulletin Number: 90-436-9J - (11/07/1991) Some 1990 Corvettes have set SIR Sensor Codes 16 and 26. The... Read More

Subject: OPTI-SPARK DIST. (REPLACE WITH NEW P/N) Model and Year: 1992 CHEVROLET CORVETTE W/ LT1 ENGINE Source: Chevrolet Product Emission Campaign Bulletin Number: 92C11 - (06/15/1992) To: All Chevrolet Dealers General Motors has... Read More

DTC #11:  Malfunction Indicator Lamp Circuit.DTC #13:  Bank #1 Heated Oxygen Sensor #1 Circuit: DTC #14:  Engine Coolant Temperature Sensor Circuit Voltage Low.DTC #15:  Engine Coolant Temperature Sensor Circuit Voltage High.DTC ... Read More

1996: Engine Diagnostic Trouble Codes DTC P0100 MAF Sensor Circuit Insufficient Activity DTC P0101 Mass Air Flow (MAF) Sensor Performance DTC P0102 Mass Air Flow (MAF) Sensor Circuit Low Frequency DTC P0103 Mass Air Flow (MAF) Sensor Circuit High... Read More

Model Year: 1985 Corvettes with Automatic TransmissionSubject: Mass Air Flow Sensor ReplacementSource: Chevrolet Dealer Emission Campaign BulletinBulletin Number: 85C12, Section 6EDate: September, 1985TO: ALL CHEVROLET DEALERSGeneral Motors has... 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 ELECT. CONDITIONS REPAIR/DIAGNOSIS PROCEDURES Model and Year: 1990-91 CORVETTE Source: Chevrolet Service Bulletin Bulletin Number: 91-337-6D - (05/30/1991) Condition: The electrical system on the 1990-91 Y Car may... 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

Subject: NOISY/FRAYING ACCESSORY DRIVE BELT (INST. SINGLE-SIDED BELT) Model and Year: 1992-93 CORVETTE WITH 5.7L (LT1) ENGINE Source: Chevrolet Service Bulletin Bulletin Number: 93-273-6A THIS BULLETIN IS BEING RE-PUBLISHED TO ADD THE... Read More