dying on idle

  1. 2007 Denali XL

    Dying on idle.

    My 2007 Yukon XL (145K miles) has just returned with a brand new transmission after sitting for 3 months. Transmission is working well but there is another issues I am trying to work out. After driving the car for about 30 mins (up and down hills, I live in the mountains), I park the car for a...

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