Rick's Free Auto Repair Advice

Posts Tagged: chevrolet trailblazer

Harsh shift P0717

Fix Harsh shift P0717 Harsh shift on Saab 9-7x, Buick Rainier, Chevrolet Trailblazer, Avalanche, Colorado, Silverado, Suburban, Tahoe, GMC Envoy, Canyon, Sierra, Yukon, Yukon XL, Hummer, vehicles, P0717 GM has issued a technical service bulletin (TSB) PIP4051B for the following vehicles with these transmissions; 4L60E, 4L65E, 4L70E 2006-08 Saab 9-7x 2006-07 Buick Rainier 2007-08 Chevrolet Trailblazer, Avalanche, Colorado, Silverado, Suburban, Tahoe 2006-08 GMC Envoy 2007-08 GMC Canyon, Sierra, Yukon, Yukon XL 2007-08 Hummer The problem shows up as a harsh shift and trouble code P0717. Before performing any major repairs, … Read More

Heater controls dead, blower motor dead, flashers dead, GM vehicles

My Heater controls are dead, blower motor dead, flashers dead, GM vehicles GM has issued a TSB #04-08-45-010 covering 2004-05 Buick Rainier, 2002-05 Chevrolet Trailblazer, 2002-05 GMC Envoy, and 2002-03 Oldsmobile Bravada. The bad ground connection can cause the instrument panel lights to be inoperative, HVAC controls inoperative, blower motor inoperative, radio inoperative, flashers inoperative, and transfer case controls inoperative. The cause has been found to be a poor ground at a splice area G201 located on the right side of the front console area. To fix the problem, you … Read More

Readiness Monitors and Drive Cycles

What are readiness monitors and drive cycles? If you want to get your vehicle inspected, your car’s readiness monitors must be in the “ready” state in order to pass the test. And that means you must complete a drive cycle. In the old days of OBDI, you could reset the computer and run your vehicle over to the emissions testing station. Not anymore. Everytime you clear the codes from the computer, you’re resetting the computer and it must start all its testing from scratch. Each drive cycle routine has its … Read More

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