Attached below are copies of the wiring diagrams from the 1973 factory service manual.  These diagrams are of the main wiring harness running from front to back. Read More

Subject:   Engine Harness Cut by Casting Flash on Transmission Housing Model and Year:   1987 Corvette Source:  Chevrolet Dealer Service Bulletin Bulletin No:   87-207 Section:   8A Date:  ... Read More

Subject:   Heat Damage to Engine Wiring Harness at Starter Solenoid Model and Year:   1968 Corvette with 396 or 427 Cubic Inch Engine Source:  Chevrolet Dealer Service Technical Bulletin Bulletin No:   68-T-66 ... Read More

Subject:   Heat Damage to Engine Wiring Harness Model and Year:   1968 Passenger Vehicles with 396 or 427 Cubic Inch Engine Source:  Chevrolet Dealer Service Technical Bulletin Bulletin No:  68-T-25 Section: ... Read More

Subject:   Engine Harness Replacement Corvette Transistor Ignition Model and Year:  1968 Corvette K66 (#960) (S.N.) Date:   NA Source:   Chevrolet Engineering Service Letter There is no separate released engine harness for... Read More

Subject: Left Rear Engine Wiring Harness RoutingModel and Year: 1994 Corvette with LT1 EngineSource: Product CampaignBulletin Number: 94C2194C21 MARCH, 1994PRODUCT CAMPAIGN 94C21 - LEFT REAR ENGINE WIRING HARNESS ROUTING1994 CORVETTE WITH LT1... Read More

Service Bulletin #:  06-06-45-004 Date: May 2006 Subject:  Instrument Panel (I/P), Body and General Wiring Harness Repair Model(s): 2007 and Prior GM Cars and Trucks2003-2007 HUMMER H22006 - 2007 HUMMER H3Attached below is the PDF for... Read More

Subject:   Engine Stops Running When Starting with Air Conditioning "On" Model and Year:   1984 Corvette with Automatic Transmissions Source:  Chevrolet Dealer Service Bulletin Bulletin No:   84-240 Section:  ... Read More

Subject:   Damage to Wiring Terminals on Engine Sensors - Metri-Pack 150 Series Model and Year: 1985-88 All Vehicles Source: Chevrolet Dealer Service Bulletin Bulletin Number: 88-101-8a, Number 8A Date:   Dec., 1987 TO:... Read More

This Chevrolet Engineering Service Letter contains important information for all owners of 1966 Corvettes that are equipped with the RPO K-66 transistorized ignition system. Original 1966 Corvette shop manuals do not have this information. Subject:... Read More