07/28/2026
What does standing behind a work actually look like?
For one customer, it meant returning after a previous catalytic converter repair when the check engine light came back on.
Rather than assuming the catalytic converter had failed again, our technician performed additional testing and analysis. The initial findings supported updating the Powertrain Control Module (PCM), so the customer approved that repair. When additional testing showed the catalyst monitor still wouldn't complete, the evidence pointed back to the catalytic converter, which we replaced under warranty. After the repair, the monitor completed successfully and no fault codes returned.
At Sherwood Auto Repair, a warranty doesn't change our process.
Every vehicle. Every time.
We perform testing and analysis, follow the evidence, and verify the repair before handing the keys back.
Read the full case study here: https://sherwoodautorepair.com/blog/standing-behind-our-work:-what-it-looks-like-in-practice