I have a 99 GMC Jimmy with 99,000 miles, V6, 4.3, 4X4.
This truck has given me no problems, but 2 days ago the engine light came on, so I hooked it up to a scanner. I'm getting code P1860, TCC PWM Solenoid CKT Eletrical
If this is really a fried solenoid wouldn't I have some shifting symptoms? The truck is not sluggish, shifts fine, runs good, no strange noises or smells.
Is it reasonable to think this might just be a bad wire, and if so is that something a reasonably competent person could replace on their own?
Wednesday, March 21st, 2007 AT 7:19 PM