Used these guys to install a needed fuel pump in my diesel truck. The work took longer than expected. Afterwards they told me it was done and to come pick it up. On arrival after an hour drive, truck was still in bay and they reported it would not start. They were pumping a lot on primer to no avail. Clearly to me one of the many fuel lines in valley was loose enough to prevent proper fuel pressure, tho they clearly believed it was the fuel primer assembly, I stated it worked fine a week ago when i installed that fresh new fuel filter. Ileft that Friday without my truck. On Monday I was called and told it was ready, that the guy had worked on Saturday to finish. They claimed that a fuel line was loose as I suspected, but they also replaced and charged me without permission the fuel primer assembly and fuel filter. I suspect over the weekend they fired the yee old parts cannon ( at my expense) at primer assembly because it was easier job than the valley and than found out that it was indeed a fuel line loose. I drove the truck without issue for quite a few miles, but after about 3000 miles, the fuel filter replacement went to zero, this could be because of them, a bad fuel filter, or bad fuel somewhere. I replaced the fuel filter for the 3rd time in 3500 miles. Than another day the AC suddenly stopped working, (they removed AC compressor and Freon for job) than it suddenly started working again. Freon and compressor were full and free. So I started inspecting wires, I have found an alternator wire not secured properly and melting on a hot pipe, and another wire at back of assembly completely cut off. Still searching other errors. You might say its a vehicle, well i bought it new 85k miles ago, and other than oil changes and air filter no one has been deep on that truck ever. You could be right, those wires and issues simply could have occurred on there own as they do. I however will not be using this shop again or recommending, as multiple problems are occurring that didn't before ( AC, fuel filters, wires cut or loose, and issues during repair due to negligence)after they did service to replace a fuel pump(LML CP4 mod) Not to mention the about 100 miles on odometer i noted while they had it. (100 mile test drive?) Nope watch out here folks

Diamond Diesel came highly recommended from a few friends, and the owners and their team of wonderful techs did not disappoint. They definitely lived up to the hype! This is THE place to go for diesel repairs and where we will go from now on! We have a 2007 Diesel Pusher RV on a Freightliner Chassis, and when I called Premier Freightliner to inquire about getting some chassis related work done, they said that they will not even look at a RV if it's over 10 years old - even though they are a Freightliner shop. So I called Diamond Diesel and spoke with Daniel. He was so nice and accommodating. They were able to get our coach in quickly. Robert (our tech) had the issues figured out and resolved very quickly and at a very fair and affordable price, Our Ford F350 Diesel pickup also ended up having an issue on our way over there, and they were able to resolve it right away as well. They also offer mobile tech service if needed. Sending a HUGE thank you to the Diamond Diesel team for getting our issues resolved and getting us back on the road so quickly ! You guys are all so AWESOME and I'm sorry, but y'all are stuck with us NOW ! We will not go anywhere else for our Diesel repair needs!

What a rip off. $148.00 for a annual DOT inspection for my truck, and it took the guy 10 minutes. I was looking for a good shop to have all my work done at the time but I won’t go back there. No I don’t have the wrong place and have a receipt to prove it. Want me to post that also?

Known this dude for the better part of twenty years. Called them last Thursday after my truck had been sitting at another shop waiting on injectors for over a month. Was told they could get it in by Thursday if I had it towed up there and it would probably be ready to go by the following Monday. (A week out from diag and then a few days to get parts in and installed) already pleased with that turnaround I was beyond pleased to receive a call today(Wednesday) the day before they were even suppose to have the time to look at it, letting me know the truck was ready to be picked up. Diamond diesel will be my go to diesel shop from now on.

Awesome service, brought my car in for an Injector misfiring and they had it done the next day!! Will return for any mechanic service from here on out

Good shop with good people you can trust. They have the experience and do great work. Nathan is the best around! Go check them out. I highly recommend them and wouldn't go anywhere else.

Needed trailer breaks fixed and Colton and Shelton stopped what they were doing and jumped on my problem. They were super helpful. 10/10 service

My rig broke down not to far from them, I walked down the road to their shop, they was happy to help me and had the hose I needed to get me back up and running, they even gave me a ride back to my truck… Great group of guys…

Took care of our truck in less time than originally quoted. Worth the 50 minute drive to deal with honest people and quality service.

Did great work on my Ford F-150 to get her back on the road in less than a day. I definitely recommend Diamond Diesel for all of your automotive needs.