Rob M.

After installing the WRONG O2 sensor, which looked correct and installed without issue, I spent months attempting to diagnose this apparently NEW problem. Only after eventually giving up and paying a mechanic was it discovered that it was NOT the correct O2 sensor, and I needed one with a "different voltage," which was not available on Rockauto.com, so I purchased elsewhere. The whole adventure cost almost $500 and was avoidable. RockAuto is completely automated and HAS NO HUMAN that you can actually speak with. So, if you have a return that is outside their window, you're screwed. FYI.

My first experience wasn't ideal, but I'm optimistic moving forward.