One day I was driving and then the check engine light came on I called On-star and they said it was code PO171?
So then after getting information and having is looked at Firestone they said it was the one ignition coil and the spark plugs that needed to be change. So being the fact those were easy fix I changed all six ignition coils and the spark plugs. But the check engine light still came back on after a little bit of driving and we are still having problems cranking it when it is cold. So now I am here scratching my head.
have the same problem?
Thursday, February 9th, 2017 AT 1:41 PM