I have a 91 gmc 2wd 700r4 the over drive kicks in and out i noticed when it does it my check engine light comes on then it doesn't to go back in overdrive also my speedodometer is off about 5 to 10 m

Asked by Feb 18, 2013 at 07:37 PM

Question type: Maintenance & Repair

1 Answer

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I would check your speed sensor on the transmission. I have seen these go out and cause the same issues.

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