Subject: REVISED AIR CONDITIONING CONTROL CIRCUIT DIAGNOSIS Model and Year: 1990 CORVETTE WITH 5.7L L98 AND LT5 ENGINES Source: Chevrolet Dealer Service Bulletin Bulletin Number: 90-400-6E THIS BULLETIN CANCELS AND SUPERSEDES DEALER... Read More

Model Year: 1968 Subject: 1968 Corvette Windshield Wiper System - Operation and Diagnosis Source: Chevrolet Dealer Technical Service Bulletin Number: 68-T-34 Date: Mar. 11, 1968 To: All Chevrolet Dealers This bulletin is being... Read More

Subject: DAMAGED ECM/PCM AND/OR MIS-DIAGNOSED ECM/PCM SYMPTOMS DUE TO INCORRECT "TAP-TESTING" PROCEDURESModel and Year:1982-91 ALL PASSENGER CARS AND TRUCKSSource: Chevrolet Service BulletinBulletin Number: 91-384-6E - (07/24/1991) CONDITION: Because... Read More

Subject: INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP OR BUSY/CYCLING TCC Model and Year: 1983-92 ALL PASSENGER CARS AND TRUCKS WITH AUTOMATIC TRANSMISSIONSource: Chevrolet Service BulletinBulletin Number: 92-42-7A - (11/07/1991) Some owners may comment... 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: SQUEAK AND RATTLE DIAG. GUIDE DIAGNOSTIC AID/CORRECTION Model and Year: 1991 CORVETTE Source: Chevrolet Service Bulletin Bulletin Number: 91-264-10 - (03/25/1991) The following information is being distributed as an aid in squeak... Read More

LT5 Secondary Port Operation & Vacuum Diagnosis by Robert Loszewski Copyright 2001 Before getting into diagnosing the LT5 engine's secondary port vacuum system, I thought it would be a good idea to take this opportunity to clear up a few... Read More

Number: 02-07-30-024Subject: Info - Diagnosis of Cracked or Broken Transmission Case Model Year: 1990-1993 Buick Roadmaster, Estate Wagon1990-1996 Cadillac Fleetwood1990-1996 Chevrolet Caprice1990-2002 Chevrolet Camaro1990-2003 Chevrolet Corvette1995... Read More

Scanning the Instrument Panel Cluster (IPC) while driving the Corvette will tell you the speed of the car, how much fuel is in the gas tank, the temperature of the engine coolant and other vehicle information. But it's not the IPC that's really... Read More

The following service bulletin was issued by Chevrolet in May of 1986 and contains excellent tips for tracking down hard to find fluid leaks which can be applied to all vehicle lines.Subject: Fluid Leak DetectionSource: Chevrolet Dealer Service... Read More