This review is long overdue for Thermal Truck and RV (TT&RV). Ron Huff, his son Shawn, and the…read moreTT&RV team have worked on my Monaco Diplomat and my Tiffin Allegro Bus at the shop at Thermal and also at my home. I find their specialties and deep knowledge are diesel engines and chassis related systems, not the house part of RVs. Over several years, I have called Ron & Shawn 6 times for problems with dash AC, check engine light, DEF and diesel exhaust, hydraulic leaks, hydraulic leveling jack, engine overheating, and engine oil leak. TT&RV has also performed mobile fluid and filters changes on the Cummins engine and generator. My total cost has added up to over $15K for all the parts and labor. However, motorhome parts are not cheap. All the problems were fixed and all the services were performed by TT&RV to my satisfaction.

These guys take care of me and my rig every time, with great communication and scheduling and…read morecomplete and quality service. You're in good hands here.

James has been good to me and my coach. From DEF sensor replacement to battery issues he has…read moreproven to be honest, punctual, and professional. If I could leave a 6 star rating I would #rvlife

Great mechanics! My rv Thor Chateau 2021 would not start. The Rv was parked in a storage area -…read morethe front end not accessible. (Can't tow from the back) Asking around Fonville was recommended. James has been working on rv's for many years! He was able to diagnose the problem and repair in less than a week. That time included parts delivery. My Battle born lithium batteries never held the charge. After years of trying to get it repaired James was able to determine the installation was not done as I was told. James educated me on how to get the most from them. Fonville's Mobile Mechanics are the best!!! They come to you!!

This review is long overdue. Superior Truck and Auto (mobile service) resolved my issue. My 2008…read moreMonaco Diplomat Motorhome developed an air leak. Juan and his assistant Troy came to my Indio MCC home and identified a slow air leak from right rear air bag's Hadley air leveling valve. The original part was not available. Juan replaced the leaking valve with another a Hadley vale that has 3/8" port instead of 1/4" port with use of 3/8 to 1/4 quick connect conversion. I appreciate his creativity. The price I paid for the part and the labor was very reasonable, especially for two trips to my home.

From the owner: Superior Truck & Auto is a Diagnostic & Mechanical Roadside Repair Company that comes to your…read morelocation. We aim to provide you with the highest quality of parts and services. We come to your location fully equipped to get you back on the road. -At Superior Truck and Auto, we work on all trucks and cars, RV’s, Tractors, Semi-Trucks, Trailers, Hydraulic Systems and tire repair & replacement. -We also provide commercial fleet maintenance and repair. -Our team is highly trained and knowledgeable in the automotive industry. We are here to help you get back on the road promptly. Hablamos español. Ofrecemos llantas nuevas y usadas. Hacemos reparaciones mecánicas y eléctricas. Servicios de emergencia de trocas y autos.

I've been using this shop for a few years now. Solid work at an affordable price. They do the…read moreyearly maintenance on my 2009 rear-engine diesel RV.

About a year ago the radiator in our RV blew. It was 114 degrees outside and we happened to be…read moreacross the street from an auto repair place. We walked over and talked to the man at the front (Will). That particular auto repair couldn't help due to the age of our class C but Will was kind enough to recommend a local place that could. He also helped us find a local tow (Shout out to Alex towing!!). Alliance diesel made the repairs and got us up and running in no time. Will has since relocated to Alliance where we just had them troubleshoot some brake issues. Thank you Cesar for your attention to detail and for keeping us informed! Recommend highly!!! If you are local to Diamond Valley area and need help with your rig, these guys for sure!!!