High Horsepower Diesel 2225 River Road, Grand Junction, CO 81503

"These incompetent buffoons couldn't fix a lawnmower. They did some unknown internal damage to my truck and charged me $1500 for it. Came out of the shop worse than it went in. It took them 3 days to not fix it but they say they want me to bring it back in and pay them more money to fix the damage they caused? Nope, you fooled me once. Never again, I'll take the loss. Put my money toward hiring more qualified techs."

"High Horsepower Diesel is the most knowledge and helpful semi truck repair in the country. Ed is the best! I have used them several times for repairs and today I needed an oil change; the best oil change I have ever had! Everyone is very knowledgeable, friendly, and willing to help. This will be my shop of choice from now on. Cross Country Express, Inc."

"I really don't have the words but I will try my best. This is my first review of anyone. I was having truck problems and I barely by the grace of God made it to Grand Junction Colorado. I got my 2005 dodge diesel over to high horsepower diesel and that is where I met Shelby. Shelby assured me that they would get it as fast as possible. Shelby just seems to be one of those rare men that always gives his best and that you can trust him. They even had a nice gal named Shannon give me a ride across the street to where I was bunked up while my truck was being worked on. They could have easily taken advantage of me like you hear about highway mechanics. It was the opposite I was taken back by thye cost. I guess it was just a dirty sensor. It just shows the integrity of Shelby and High horsepower diesel.I was a long ways from home but Shelby and Shannon treated me like family. I can't say enough about high horsepower diesel. Yours truly Bill Durham"

"2008 Monaco Diplomat Coming down the 70 out of Denver we started having exhaust problems for the second time this trip in our RV. Landing in a dirt lot overnight in Eagle, we got ahold of a Greg @ Advanced Diesel, he referred us to a mechanic (Shane) that was able to reset the exhaust to get us down to Grand Junction. Greg also referred High Horsepower Diesel and we couldn’t be happier he did. Upon arrival they quickly began to disassemble the exhaust filters and sent them out to get baked overnight. While we waited we were able to stay the night in the RV in the parking lot. The next day once the exhaust filters were back, they got right on installing them. When we finally got back on the road we heard an air leak, turned back around to the shop. They found a damaged o ring on the turbo intake and replaced it free of charge. We are so glad to be back on the road again and heading home. Thanks to all the crew over at High Horsepower Diesel! ~ from our family of 4 traveling with 2 dogs"

"We heard about High Horsepower through some friends and decided to try them! They are amazing. They treat EVERYONE kind. Their work is impeccable and their pricing is better than any where in town. I strongly recommend High Horsepower!"