Gmc Yukon Xl Questions
Gmc Yukon Xl
Mon, 21 Mar 2011
I have a 2001 Chey Yukon XL 173,000 miles and new ...
I have a 2001 Chey Yukon XL 173,000 miles and new transmission at 170,000. my question is this, while traviling at 65 to 70 mile/hr on the highway and the vehical encounters a hill the power from the transmission does not downshift from overdrive until the vehical dies down to about 45 to 50 miles/hr and sometimes does not shift down untill 35m/h and the pedel is alll the way to the floor. your thoughts?
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