Copperhead Diesel Performance

I’m hesitant to leave a review for one reason. I don’t want to not be able to an appointment when I need them. My wife and I travel a lot and pull a trailer. We depend on our ford truck to keep us moving. Before leaving MT for AZ the dreaded check engine came on and trying to find anyone that would...

I brought my 2017 GMC Denali 3500HD into Copperhead Diesel Performance (CDP) after suffering a “Reduced Engine Power” warning & check engine light, a nightmare for most, if not all diesel owners? CDP got me in on their first availability and quickly diagnosed the problem; terrible misfires from fau...

I had some repairs done on my truck. After I got home I noticed the hood was up on one side.I went back to Copperhead diesel Shawn helped me he was very calm and knowledgeable and he found a wire harness that was holding the hood up on that side it was no fault of there’s.Its refreshing to have some...

Chris & the team at Copperhead Diesel Performance have been nothing but kind and professional! I have been, and will continue to suggest Copperhead to anyone needing help with their diesel truck . Here's the rare hits: •Very clear communication (streamlined w/ text updates, etc.)! •Clean shop •Fair ...

I want to thank Copperhead Diesel for what they did. They taught me all about self worth. I dropped my truck off with an appt. I was able to drop it off the night before and use a drop box. I paid $1200 for them to do everything that I told them that I did exactly. I told them about the heater hose ...

Copperhead Diesel Performance recently provided excellent service on my 2.8L Duramax. From the boss, to the technician, and the front desk staff. They were all extremely knowledgeable on any questions I had, fair on price, and professional.

Copperhead diesl . Had my 97" ,250 ford powerstroke worked on. The tech. dept. Worked on my truck like a crime scene, the defects and work to repair my truck just amazed me. I am so excited to drive my truck. During the time of my repairs, they kept me informed of the progress on my truck. Pay her a...

I recently had my wife’s gas-powered Ford Expedition repaired at this shop for a transmission replacement, and I couldn’t be happier with the experience. As a mechanic myself, I have high standards for quality work, and this shop exceeded them. I trusted them to handle the job and they delivered. Th...

Chris and the guys were able to get my 6.7 back on the road and running like new. Previous truck owner or their mechanic did some really shoddy work leaving me stranded. But Copperhead went through the motor and fixed all the previous mistakes/problems/leaks etc the correct way. I've been working pr...

Their Pre-Purchase Inspection service is worth every penny. Extremely thorough and well presented; they found issues I completely missed. Would recommend this before purchasing any used diesel pickup.