Info on Grounding the TCM.
I am having the common problem of power steering, gauges malfunctioning and harsh transmission shifting. I have a 2005 automatic cobalt. Ive had this problem ever since I bought the car and I have always been able to turn it off and back on to clear the problem but now it will not go away. Sooo I heard one of the fixes would be to add a ground wire. Could someone please explain how to do this? Thank you.