Review on ECCPP Replacement 610 00109 Oldsmobile 2002 2009（Pack by Ryan Yap

I replaced ignition coils in a 2002 GMC Envoy. On the third coil, one of the screws broke when I finger tightened it. I was able to get the screw out and it was stuck there with needle nose pliers. One of the ignition coils sent to me was also defective. Revain's customer service department handled the situation very well, but I still had the issue of the missing 5th spark plug coil. They were installed in a matter of weeks and the ones at work didn't disappoint.