- Jul 14, 2015
- 14
The Envoy has 180k (already put 2800 on it in 3 weeks of ownership) and it started getting a tiny rpm drop with NO engine lights, literally like 1-150 rpms. You could feel it more under the driver's seat than see it on the gauge, or barely a puff of exhaust if you stuck your hand behind the pipe. Originally I thought maybe I had gotten bad gas, then I started figuring a bad plug or coil check engine light came on and I got it scanned... Misfire on cylinder 2 and a right front wheel bearing. I didn't clear the codes and sure enough, they went away; but the problem didn't...
I searched and found the correct/recommended ac delco plugs. Should I just start there and try plugs, or should I do the coils too? Any recommendations for the coil packs? And I haven't even looked under the hood to see the difficulty on the job, how bad is it and what should I be prepared for?
BTW, this was a one owner Envoy, and the original owner supposedly did the plugs and coils at 100k. It has been meticulously maintained otherwise.
I searched and found the correct/recommended ac delco plugs. Should I just start there and try plugs, or should I do the coils too? Any recommendations for the coil packs? And I haven't even looked under the hood to see the difficulty on the job, how bad is it and what should I be prepared for?
BTW, this was a one owner Envoy, and the original owner supposedly did the plugs and coils at 100k. It has been meticulously maintained otherwise.