Rick's Free Auto Repair Advice

Posts Tagged: Trailblazer

Engine Runs Rough

Engine Runs Rough If you find any of these trouble codes P0300, P0301, P0302, P0303, P0304, P0305, P0306, read this. Here’s how to diagnose engine runs rough after going through a puddle on any of these vehicles: 2008-2009 Chevrolet Colorado, TrailBlazer, 2008-2009 GMC Canyon, Envoy, 2008-2009 HUMMER H3, H3T, 2008-2009 Saab 9-7X, All Equipped With Engine RPOs LLR, LLV, LL8, here’s what to check out. The ignition coil bolts on these vehicles is vented. If you drive through puddles and water splashes onto the bolt vent holes, the water will … Read More

ABS light on GM vehicles

Why is my ABS light on GM vehicles GM has issued a TSB #04-05-025-002A covering the following vehicles: 2004 Buick Rainier 2002-04 Cadillac Escalade, Escalade EXT 2003-04 Chevrolet Silverado 2000-04 Chevrolet Suburban, Tahoe 2003-04 Chevrolet Avalanche, Trailblazer 2003-04 Chevrolet SSR 1999-04 GMC Sierra 2000-04 GMC Yukon, Yukon Denali, Yukon XL 2002-04 GMC Envoy 2004 GMC Envoy XUV 2002-2004 Oldsmobile Bravada The problem shows up as a glowing ABS light and trouble coded C0265, C0201, U1041 and a loss of communication with the brake module (EBCM). The TSB warns dealers NOT … Read More

C0040 ABS light on GM Saab

Fix code C0040 ABS light on GM Saab If you have a Coo4o or an ABS light on, read this TSB. GM has issued a technical service bulletin for Buick Rainier (05-07), Chevrolet TrailBlazer (05-08), GMC Envoy (05-08), and Saab 9-7X. The TSB #07-05-25-006 relates to a problem with the ABS system and results in a scan code C0040. GM advises you to inspect the right front wheel speed sensor for damage caused by rubbing against the A/C pulley. If you find damage, wire in a splice and then reroute … Read More

Door hard to close – GM SUV Vehicles

Door hard to close – GM SUV Vehicles If you own one of the 2002-07 GM SUVs listed below and you’re having Door hard to close, GM says you may need to adjust the door striker. Open the problem door and remove the striker. Then close the door and verify that it fits properly. Check the fit to the door opening and also the fit to the weatherstripping. If it doesn’t fit, you’ll have to adjust the door frame itself. If the door fits, reinstall the striker and snug the … Read More


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