They didn't do the work they say they did to our RV. We spent close to $700. They didn't put oil in the RV. When we checked, there was no oil in the RV. Just a bunch of scammers. Maybe that's why they're permanently closed and majority of the reviews don't have goods things to say about this business. read more

I was just in here on Friday to have my Cummins engine checked because I was losing power. Mechanic said everything OK on Friday. Today I had to pull off the road 3X in 25 miles since the smoke started and I was losing speed. Turbo gauge now says no boost. I stop and get back up to speed with 25 pounds of boost until it acts up again. I went back here to ask for help and they said they were to busy and had to help a larger customer so I have to wait. I was there on Friday only to be told no problem but today, one day later they will not help us. This is not the way to treat customers. We have 11 people going to Lake Shasta tomorrow morning and I have a questionable turbo and now Mor-Jon will not give me any priority since I was already there. Stay away from these clowns since they don't treat paying customers very well. read more

We had a serious problem with our diesel pusher RV and took it to Mor-Jon on 09/09/2019. We knew what the problem was and needed parts ordered and for someone to install the new parts. Marianne was extremely helpful in getting us the right parts (wrong parts ordered first because of erroneous information provided by a person in Irvine, CA). We were allowed to hook up outside their business and stay in the RV while parts were being ordered and until problem was fixed. Thanks, also, to mechanic, Donald, for helping us. A+ for Marianne! read more

Moron was supposed to service my hydraulic pump ....they charged me $195 and did nothing to it ....we took it apart to confirm ...nothing was done. read more

When I visit with my in-laws I want to know they are happy. Having reluctantly taken their Motorhome to these clowns (a second time - they are the only resource for miles) to deal with a engine warning light that preceded engine stuttering under load, they were told fees for oil replacement and a new plug would cost in the range of a hundred bucks or so. As a final result, the work cost $700. And that it would fix the problem. It didn't. "Pop is NOT Happy". But NOT needing the conflict, or an arrest for going back and dragging the mechanics through the glass, this simple review will do. A week later, out on the road, the problem was right back. Never fixed. It was diagnosed immediately - the first time - by a trusted shop they were able to visit in Ukiah. Turned out to be a fuel supply issue. Common to diesels. "Should have been the first thing they checked," said they. Resolved in about 30 minutes for about $75 bucks. Moral of the story. If you want to get screwed by a place that doesn't know what it's doing, go here. If you want someone to fix the problem fairly, for a fair price, go elsewhere. F me once, shame on you. F me twice, shame on me. PASS read more