Question about 2006 GMC Sierra
Transmission wont shift into 2nd was spitting 10 different codes. went to dealer, was told needed new computer. they installed new computer did not help. i believe it is a wiring problem. i also installed all new solenoids in valve body, still not working. went to transmission shop could not find problem help!!!
Sounds stupid, but try replacing the ingition seitvk, I had same problem with my 97 Jimmy, did everything you did befor replacing the ignition harness. bad wires in ignition switch sends low voltage to trans harness
Posted on Sep 07, 2008
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Posted on Jan 02, 2017
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