I can't speak highly enough of Steve and Justin at Deranged. Their work is top notch. Nobody knows diesel engines better than them. Between a pre purchase inspection and servicing the vehicle...

Steve is awesome! I called with a pretty serious oil leak on my 7.3 power stroke. He got me in the next morning just to take a look at it even though they were booked out. Found the problem, said...

Had a very difficult problem with DEF system. Justin spent hours of his time trying to repair inexpensively. Unfortunately it cost a lot in the end but Justin didn't charge me for all his time. As...

We had an emergency very close to closing time. They stayed to assess the problem and order parts so our pickup could be repaired. They were all so helpful. The pickup was repaired and works...

So, I was shopping around for a diesel mechanic for my Chevy 3500HD and did not trust the dealerships. 5 minutes after i pulled up, they had my truck in the bay with the hood open, without an...