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Devil Mountain Diesel

4.1 (30 reviews)
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Services - Devil Mountain Diesel

Check engine light

Engine oil light diagnosis

Auto general diagnosis

18 More Services

Auto noise diagnosis

Tire Pressure Monitoring System diagnosis

Auto no-start diagnosis

Auto vibration diagnosis

Auto diagnosis or inspection

Auto pre-purchase inspection

Auto maintenance

Oil changes

Auto repairs

Auto battery or electrical system repair

Auto brake repair

Auto engine repair

Auto HVAC repair

Auto light repair

Auto steering and suspension repair

Auto wheel and tire repair

Routine automotive maintenance

Transmission leak inspection

Devil Mountain Diesel Photos

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Recommended Reviews - Devil Mountain Diesel

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Reviews With Photos - Devil Mountain Diesel

Benjamin J.

Jason worked on two of my diesels years ago when he worked as a diesel technician at Ford. It was always done right the first time and I never had any problems with his work. I don't own a diesel at the moment but when I get my next one I will be taking it to him for service.

Blown VGT seal spewing oil to back of engine

Being out of town I needed to find a reliable diesel performance shop to take a look at my truck. Unfortunately the Yelp reviews led me astray because this shop is far from professional. I dropped my truck off because it was making a incredibly awful noise from the turbos and I explained this to them. The next day comes with no phone call so I give them a ring and am told that their techs are driving it around. He promised to call me at the end of the day which he did not and when I called he just further explained how they have been driving it around. Well as any good shop would do they would pop the hood and start looking around. He told me the next day he could hook my turbos up and run a test which I would have been more than happy with. Next day rolls around and its 2 of clock with no phone call. I call to check in only to get a response that his tech is out driving my truck again trying to recreate the noise I had. At this point I told him to bring my truck back and I was going to pick it up. After a short conversation with the guy up front about how he can't do a diagnose it until he hears tHe sound so I leave and get in my truck to discover that it is cold and that really no one was out driving it. Moral of the story is this shop is far from professional. Any good diesel mechanic could of popped my hood and seen I had a turbo seal leaking oil possibly being the cause of the problem, but they didn't. Anyone who knows diesels and is into diesel performance STAY AWAY FROM THESE GUYS. I mean what to expect from a guy who used to be a ford tech? What a joke. Below are pictures of turbo issues I had that these guys failed to even notice probably because they didn't even open the hood. Edit: Took my truck my much more reliable shop, took it in same day, found my turbos seals were bad and bad crossover tube seals and replaced them same day I dropped the truck off, that's a reliable shop! Also, I didn't try to pass my truck without emissions. That was the first thing I mentioned to your employees because I know how it may affect your shop with the EPA. As an owner you should be more aware of goes on in your shop.

Hat on 8 pound melon

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3 months ago

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9 months ago

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1 year ago

These guys are super honest, straightforward, and good at what they do. I recommend them to anybody that has issues with their diesel.

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10 months ago

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2 years ago

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3 years ago

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4 years ago

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9 years ago

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7 years ago

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8 years ago

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7 years ago

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5 years ago

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9 years ago

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9 years ago

Business owner information

Photo of Jason L.

Jason L.

Helpful 7
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10 years ago

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8 years ago

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12 years ago

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8 years ago

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8 years ago

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15 years ago

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Photo of Bill W.
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11 years ago

Very impressive crew and shop. You will not be disappointed with the knowledge, cleanliness and the friendly staff.

Business owner information

Photo of Jason L.

Jason L.

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14 years ago

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10 years ago

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7 years ago

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11 years ago

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9 years ago

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12 years ago

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10 years ago

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Review Highlights - Devil Mountain Diesel

The story may have been different if I'd taken it to Mark in the first place but never the less.

Mentioned in 10 reviews

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I found this shop because I was looking for someone who would take parts I bought and put it in my…read moreold car. the car fell apart but that was kind of inevitable but the service I received was phenomenal. I've been to this shop for my new car ever since and they have always treated me so kindly and explain things carefully to me. they gave me a root beer float one time because I had been waiting so long and I guess they felt bad but I don't mind waiting for excellent service. the prices are very fair and you can tell they won't cheat you for extra money. I have found the shop that I will be going to for everything my car needs from now on :]

I have a 2019 Lexus ES300, and when I took it to the dealership, they gave me a huge list of…read morerecommended services with a very expensive estimate. I was honestly stressed out and wasn't sure what to do. A friend told me about this shop, so I decided to get a second opinion. That was the best decision I could have made. The staff took their time to go through everything with me and explained each service in a way that actually made sense. They were honest, professional, and never tried to sell me anything I didn't need. They completed the repairs using OEM-quality parts and charged much less than the dealership. The difference in price was unbelievable, and the quality of work was excellent. My Lexus is running great, and I feel much more confident knowing the work was done right. It's rare to find a shop that is both knowledgeable and trustworthy. If you're looking for honest service, fair pricing, and people who genuinely care about their customers, I highly recommend this place.

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Paul is a very honest businessman. Regarding cars he really…read moreknows his stuff. He kept my Prius running great. 125k without a problem

Paul is one of the most genuinely caring and good-hearted people I've ever met. He will make sure…read moreyou are taken care of no matter what. About a year ago I got quoted $1,400 by Midas to get my axel boots replaced on my Toyota yaris. I called him in desperation-- my parents had brought their cars to him before but I had never brought mine in, but I had heard great things. I left a message and a couple days later he called back and said I could bring in my car early in the morning so he could take a look, no appointment needed despite his crazy busy schedule. He let me know that the issue was not nearly as bad as I had been told and that he could do the job for half of what Midas had quoted me. This was my first experience with him and he has consistently shown how much he truly cares about doing right by people and taking care of their cars honestly and to the best of his ability. I feel like I could trust him with my life. When he retires eventually I will have to go into mourning. If you are not sure whether the wait for an appointment is worth it, ask yourself if you can afford to pay double whatever he will charge you to another mechanic who will not be nearly as thorough as he will be. Recently, when he had to refer me to another shop because I needed a service he doesn't provide, he asked me to still follow up and let him know how it went after the work was done, just out of the pure kindness of his heart. He is a one in a hundred million kind of mechanic.

Devil Mountain Diesel - autorepair - Updated July 2026

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