Electrical and Ignition

Source: Chevrolet Dealer Service Bulletin Number: 90-229-9 Subject: Service Manual Update - SIR Revised Code 42 Chart Model Year: 1990 Y Car This bulletin serves to revise the Code 42 Chart on page 9J-A-43 in Section 9J-A "Supplemental... Read More

Source: Chevrolet Dealer Service Bulletin Number: 90-175-6D Subject: Service Manual Update Sec. 6D1 - Battery Spec. Chart Model Year: 1990 Y Car This bulletin reflects revisions made to the General Specifications Chart which appears in... Read More

Subject: TECH 1 REVISED ODOMETER RECALIBRATION PROCEDUREModel and Year: 1990 CORVETTESource: Chevrolet Service BulletinBulletin Number: 90-373-8C - (11/21/1990) TO: ALL CHEVROLET DEALERS THIS BULLETIN CANCELS AND SUPERSEDES DEALER SERVICE BULLETIN NO... Read More

#93-163-8A - REPLACEMENT OF ISOLATION DIODESMANY OF THE ELECTRICAL SYSTEMS ON OUR VEHICLES USE A DIODE TO ISOLATE CERTAIN CIRCUITS AND PROTECT THEM FROM VOLTAGE SPIKES. SOME OF THE CIRCUITS WHICH MAY USE SUCH A DIODE ARE LISTED BELOW:* A/C COMPRESSOR... Read More

Subject: RADIO MAY LOSE SOME FUNCTIONS Model and Year: 1990 CORVETTESource: Chevrolet Dealer Service BulletinBulletin Number: 90-360-9ASection: 9ADate: October 1990Corporate Bulletin No.: 039004TO: ALL CHEVROLET DEALERSCondition:The radio... Read More

Subject: INFLATABLE RESTRAINT INDICATOR LAMP STAYS ON Model and Year: 1990 Y CARSource: Chevrolet Service BulletinBulletin Number: 90-98-0A - (01/03/1990) CONDITION: The "INFL REST" indicator lamp may stay lit after the 5 second (ignition on) bulb... Read More

Subject: SERVICE MANUAL UPDATE SEC. 5E1 ABS DIAGNOSIS-REVISED CODE 63 Model and Year: 1990 CORVETTE Source: Chevrolet Service Bulletin Bulletin Number: 90-430-5 - (08/21/1991) This bulletin serves to update the ABS Code 63 (Page 1 of 3)... Read More

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: CAMPAIGN: INSTRUMENT PANEL WIRE ABRASION - REPAIR Model and Year: 1990 CHEVROLET CORVETTE W/ L98 OR LT5 ENGINESource: Chevrolet Service BulletinBulletin Number: 90-C-07 - (01/17/1990) General Motors has determined that certain 1990 Chevrolet... Read More

Subject: SERVICE TIPS FOR SUPPLEMENTAL INFLATABLE RESTRAINT (SIR) Model and Year: 1991 CORVETTESource: Chevrolet Service BulletinBulletin Number: 91-107-9Section: 9Date: (November 1990)Corporate Bulletin No.: 039007 TO: ALL CHEVROLET DEALERSThe 1991... Read More