Question about 2004 Jeep Grand Cherokee
My automatic transmission shifts into overdrive often and for no reason while at highway speeds. I'm told it is a bad speed sensor. I'm also told that to fix this, the entire transmission must be removed and taken apart. Is this true?
Check the 10 wire connector going into the transmission for water or corrosion. This could cause inadvertant shifting but would also probably set the check engine light. The throttle position sensor could also cause this. Speed sensors screw into the transmission from the outside and would cause a limp in condition where it wouldn't shift out of second gear.
Posted on Nov 24, 2008
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Posted on Jan 02, 2017
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