Started having issues with a 2004.5 Cummins motor. Grayish smoke on initial start-up, then lugging/sputtering at low rpms but fine above 1500+. Did a bunch of searching for a reputable diesel shop. Found it. Stopped in, explained my issues, Mike was attentive and had a pretty good idea what it was. Set up an appointment for diagnostic check. Dropped the truck off the night before. Next morning Mike calls with 45 minutes of opening with the results and an estimate. He allowed me to keep the truck their while injectors were ordered and set an install date roughly 1½ weeks out. Truck was done as scheduled, estimate was spot on, and the truck runs like it did when new. Thank you.

Mike was super straight forward- did a great job- had awesome communication- overall a great experience - thanks so much for taking great care of my truck.

My neighbor used the words honest and integrity after his truck came back from Mike. As soon as we talked a few minutes when I stopped in, I knew exactly what James meant by honest and integrity. Monster Diesel did a great job on my front end and was open from the estimate to the final cost. Monster is definitely a 5 star in my opinion.

I searched for years to find a good diesel mechanic. I thank the Lord for sending Monster Diesel Repair to Gilbert. Quality service from soup to nuts!!! My ‘04 Superduty is still going strong. Thank you Mike and your team.

Mike replaced my 2003 6.0 injectors, FICM, harness, etc. It was worth every penny. I have towed several pieces of heavy equipment and horse trailer loaded, in my move to the mountains of Young AZ. My truck runs like brand new. I have taken my truck to Mike since it was new. Best Diesel mechanic period. You may wait for appt, but he gets it done when he says.