Engine repair service near Sunol, CA

The guys here are always straight forward. Good prices and I don't feel like I'm paying for services that I don't need. I've been taking my personal car here for awhile and the company I work for gets their services done here. John S. Antioch, CA

I love going to Clayton Valley Auto Service as Jeff and all those who work there are friendly, knowledgeable and do a very good job. When I had a check engine light Jeff's dad told me right off the top that it could be 4 or 5 different things and they would start out with the least expensive until they found out what the trouble was. I'm still driving that van around 5 years later. I really appreciate the great service they give. They are really great for routine maintenance, and wonderful when I have emergencies.

I took my car here for what turned out to be a simple, small electrical issue. Instead, Carlos told me I needed a fuel injection flush - one of those things they upsell you too when you go to an oil change place. Only this one cost over $300! Carlos assured me that the problem was resolved. I ended up stranded at the side of a freeway two miles away. I had to get the car towed at a cost of over $150! The solution was easy, took 10 minutes, and cost me nothing at the place I towed it to. When I called Carlos to tell him I was stranded at the side of the freeway because of his poor workmanship, his attitude was dismissive, condescending, and unhelpful. He proceeded to tell me that he doesn't guarantee that his workmanship will fix the problem. Really? Imagine if your doctor treated you that way. Basically, he took my money and did nothing. I get the feeling that this place once was a good shop, but someone got greedy and dishonest. To be certain, Carlos is a good talker. He seems sincere and knowledgeable. But the emphasis here is on SEEMS.

We specialize in Auto Repair, Transmission Repair, Brake Repair, Auto Electric Service and Auto Service. We are proud to provide auto repair for Concord CA. We will take care of your car and treat it

General auto repair shop that also specializes in performance tuning. Whether it's a simple oil change, a diagnostic or a full on engine swap we take pride and care in all of the work we do. Our mechanics are ASE certified and have many.

Straightforward, patient and considerate of my ignorance when it comes to cars. Mostly interacted with Bruce, who was very helpful, but the small interactions I did have with the rest of the staff were just as nice. Reasonable prices and a very professional atmosphere. If you’ve got a Volvo (or Subaru I suppose), this is your place! Anna Nelson

My Mercedes 2003 c240. The whole front end was busted. Conrtol arms, bushings, etc. I took it in, and the work was fantastic! My car came back clean, and running smooth! I'll be back for my shocks and hoses my car needs. I'm super happy with the service! Happy I found someone I can trust, and knows my Mercedes. YAY!

This guy (Mark) is AWESOME! I mean where can you find an honest mechanic? Right here! This guy has the most honest place I have ever been. He told me one time, "no, you don't need a tune-up, just an oil change for now. Tune-up can wait." I have been his customer for over 15 years and he has worked on my Mitsubishi Endeavor, several vans I had in the past, my wife's Kia car... and I tell my friends that he is cool! You can say, Dave sent you, hehe.