Engine and Drivetrain

FOR RELEASE: September 5, 2002 CONTACT(S): Thomas Read, GM Powertrain Communications Dave Roman, GM Powertrain Communications GM Powertrain's 2004 Northstar V8 Sets New Standard Cadillac XLR and SRX to Benefit from Next-Generation Northstar... Read More

FOR RELEASE: September 5, 2002 CONTACT(S): Thomas Read, GM Powertrain Communications Dave Roman, GM Powertrain Communications GM's Livonia Engine Plant Committed to Quality Next-Generation Northstar V8 to Benefit From New Manufacturing Equipment and... Read More

Some 2004 model year Cadillac XLR  and Chevrolet Corvette vehicles may have a fuel tank leak at the quick connectors that are used to link the left and right fuel tanks.  The customer may notice a fuel odor while the vehicle is being... Read More

Drivetrain - Rear Differential Fluid Leak Bulletin No.: 03-04-20-006 Date: November 18, 2003 TECHNICAL Subject: Fluid Leak at Rear Axle (Replace Left Differential Side Cover 0-Ring and Left Axle Shaft Seal, Add Sealant to Side Cover Flange) Models:... Read More

Corvette and Cadillac XLR Partway through model year 2003, a new fuel tank system was introduced on the Corvette (fig. 1). This system continues with slight differences in the 2004 Corvette and Cadillac XLR. TIP: For 2003 Corvettes only, this... Read More

Devices for delivering air into an engine at pressures higher than atmospheric fall into two major groups -- mechanically driven (superchargers) and exhaust gas driven (turbochargers). GM's supercharged engines have historically incorporated the... Read More

#04-07-30-013B: Info - Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon (SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air Filter - (Feb 1, 2007) Subject: Automatic... Read More

Special Coverage Adjustment 15682 Primary Tank Module Flange Fuel and Vapor Leaks Reference Number: N150682 Release Date: August 2016 GWM Number: 2015682 Revision: 01 Revision Description: This bulletin is being revised to accurately depict the... Read More

FOR RELEASE: March 17, 2003 CONTACT(S): Jeff Kuhlman, Cadillac Communications Kelly Cusinato, Cadillac Communications David Caldwell, GM Product Communications Next-Generation Northstar Sets New Standard in Performance and Refinement For Cadillac XLR... Read More

#PIP4112Q: Normal Characteristic - Sag Or Hesitation On Acceleration - (Sep 16, 2015) Subject: Normal Characteristic - Sag Or Hesitation On Acceleration Models: 2008-2012 Buick Enclave 2010-2011 Buick LaCrosse MH7 2010-2013 Buick LaCrosse... Read More