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One of the common problems with the inflatable lumbar seats is that the pump may fail. The pump may continue to work, but the air bladders located in the seat do not inflate. There is a rubber membrane within the pump which can puncture. Below are... 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

Subject: Hatch Will Not Pop Up When Activated in Cold Weather Source: Chevrolet Dealer Technical Service Bulletin Number: 73-10-58 Models: 1997 Chevrolet Corvette Condition: Some owners may comment that the hatch will not pop up when... Read More

Description:This technical article was published in Composites Technology, September/October 1999, and looks at the C5 fixed roof coupe body structure and discusses the manufacturing and engineering techniques used in developing the hardtop model... Read More

From GM TechLink, July 2004: Owners of some Corvettes have experienced Service ABS, Service Active Handling and Service Traction Control messages. Wheel speed sensor codes may be set. This condition may be caused by replacing the OEM rubber brake... Read More

Magnetic Ride - Star Wars Meets the 50th Car   by Hib Halverson, ©2003 Shark Communications no use without permission I hit the last dip at 100 or so, on the brakes, getting ABS as the rear suspension kissed the rebound stops,... Read More

Magnetic Selective Ride Control---First Drive by Hib Halverson,Technical Writer for Internet & Print MediaCopyright 2002, Hib HalversonI finally had a chance to drive a six-speed, 50th Anniversary Corvette yesterday (Wed. 7/31) at a GM regional... Read More

Description:Hib Halverson reviews the C5 Corvette's Active Handling system. Excerpt:"When ordered on a C5, Active Handling combines with the car's traction control system (TCS) to enhance control in maneuvers having high yaw rates. TCS (or "ASR,"; as... Read More

From GM TechLink, September 2003: The 1997-2003 Corvette, or 1993-2002 Camaro and Pontiac Firebird equipped with the 6 speed manual transmission may exhibit the following.Primary Condition- Unable to shift out of fourth gear.Other Conditions- 3-4... Read More

Source:  GM TechLink, July 2004: This information applies to 2004 Light Duty Trucks, Corvette and GTO. General Motors Powertrain has made a design change to oil pump to case oil seal on the 2004 4L60E (M30) and the 4L65E (M32). The new... Read More