Rick's Free Auto Repair Advice

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, check the condition of the wires at the input speed sensor. Inspection may show damage to the white wire going to the sensor. That wire is not protected by the plastic conduit and is exposed to sharp edges on the pump casting. Repair the wire and protect it from futther damage

© 2012 Rick Muscoplat

Posted on by Rick Muscoplat

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