Engine Mechanical problem
2004 GMC Envoy 6 cyl Two Wheel Drive Automatic 58000 miles
My " check engine soon" and " reduced engine power" lights come on. When this happens it feels as if the vehicle goes dead; however, it doesn't but I find myself having to coast into the closest parking lot to avoid being hit. Each time it's done this I have taken it to 2 different autozones for them to check it out. Both times the hand held system comes up with this P1680 reading. When they look the code up it tells them ECM failure. The part even refurbished runs $460 with a core charge. I'm trying to decide on if I should go with these 2 readings or actually take it to a dealership and have them put the vehicle on an actual diagnostic machine. A co-worker told me it also could be the fan motor harness. Any suggestions?
Thursday, August 14th, 2008 AT 3:14 PM