We were travelling out west from Denver and experienced problems on our Dodge Ram 2500. An auto repair shop suggested I replace the electrical sensor which did not resolve the issue. As your schedule was full you quickly assessed the issue and advised me to replace the pedal position assembly unit which did the trick and was cheaper than the sensor unit only! We were able to continue our vacation. We appreciated your honest and quick assessment of the needed fix and highly recommend you to others.

Jason with Rocky Mountain Diesel and Auto Repair saved the day (and trip) for us! We were headed from Montana to Arizona when our AC compressor in our motor home disintegrated. They were busy but Melissa manged to work us in and had us back on the road quickly. If you are ever in need of a mechanic in this area give them a call. They will treat you right! Thanks Jason and Melissa!

Jason does exceptional work! I took my truck to him to have my 4x4 fixed. He was able to diagnose the issue quickly, fix me up, and help me on my way. Very professional and very reasonable pricing for such great service. Will be bringing all of my vehicles to him in the future.

Jason is a top notch honest mechanic. They are getting hard to find. I highly recommend him to anyone needing work done.

Rocky Mountain Diesel helped me diagnose my F350 during a recent stop on a long work road trip. They gave me advice and helped me on my way. If you want a repair shop that will treat you fairly and do the job correctly look no further. Thank you again!

If you are looking for a honest mechanic then Rocky Mountain Diesel is your place. Jason knows what he is talking and about and provides amazing personal service. I have been taking my cars here for years and I am always, very satisfied with his work.

Fast, Friendly, and HONEST. I trust Rocky Mtn Diesel with all my mechanic needs.

Jay is a good and honest mechanic..Good work, Jay, really appreciated

Fixed a problem that could have cost me a small fortune but they fixed it quickly and for a very reasonable price!

Jason is a great guy. He runs a good business with great service. I had a great experience working with him to fix my 12 Valve Cummins. I really liked doing business with him because he did not want to just fix things that were not for sure 100% the issue, and I appreciate that. I will definitely go back for more help later.

This place was awesome. Great prices, variety of skills and willing to work on anything with a motor. They have fixed my motorhome, suburban,motorcycle, snow bike, snowmobiles, chainsaw,etc.. would totally recommend them awesome group full of integrity

Found out I had a damaged brake line on my gooseneck trailer. They were able to fix it within a few hours and at a reasonable price. They also checked the fluids in my truck and stopped off what was low. I was able to get back to work the same day. Thanks a million!

I like that they give it to me straight and dont beat around the bush. Great value for money...they have fixed 3 of my vehicles and I will continue to go back! Thank you!

They have always been helpful and provided work at a great price. I also love bouncing ideas about upgrades for my truck.

Jason helped me get a new car looked over on super short notice on a Saturday when most everyone else in the area was closed. Im super impressed.

Honest guy and definitely won’t screw you. He is a good mechanic and stands behind his work.

Jason at Rocky Mountain Parts was really fantastic. Its rare finding a good, honest and reliable mechanic. Love that he stands behind his work and is priced fair. Had him repair an intake valve sensor, brake pads, and a few other miscellaneous things on my GMC Sierra. Highly recommend!!

It’s nice to have finally found a good mechanic that knows what he’s doing.!!!! Very happy

Jason has serviced one of my vehicles as well as took the time to diagnose another vehicle over the phone. He is honest and fair, something that I always look for in a mechanic.

Very professional and honest. Would recommend to anyone.

Honest, fast, friendly, and certified. Id send my daughter on her own.

Honest work at a great price. Hard to come by these days.

Rocky Mountain diesel is awesome. He is an honest mechanic with excellent service and is extremely competitive on price. Highly recommended.

Friendly service. Great price. Quality work.

Jason fixed our transmission and even made a house call to diagnose the problem.

My brother referred me to here. They did awesome work for me. Like my brother said. honest, affordable, and reliable.

They found my problem and took care of it straight away and we’re fair on cost of repair .I would use these guys in future

Good quality work and fast for the price!