Rick's Free Auto Repair Advice

Posts Tagged: 9-7X

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

Fan clutch issues Rainier Trailblazer S10 Ascender Bravada 9-7X S15 Envoy

Fix Fan clutch issues Rainier Trailblazer S10 Ascender Bravada 9-7X S15 Envoy If you encounter Electronic Fan clutch issues on Rainier, Trailblazer, S10, Isuzu Ascender, Oldmobile Bravada, Saab 9-7X, and S15 GMC Envoy, read this. The electronic fan clutch in the above vehicles experiences almost a 100% failure rate. The purpose of the fan is to reduce drag on the engine at highway speeds where “ram-air” is enough to cool the radiator. At highway speeds, a fully engaged clutch actually spins slower than the air coming through the radiator. So it … 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


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