Motorhome Repair in Spokane Keeps Class A Rigs Rolling

Written by the Motorplex Team
Serving Spokane and Auburn with Full-Service Fleet and Heavy-Duty Repair

When you own a large Class A motorhome, you need a motorhome repair shop that can actually handle it. These big rigs sit on heavy-duty chassis, weigh far more than the average vehicle, and require equipment designed for full-size commercial buses and trucks.

If you own one of these Class A RVs and live in Spokane, Motorplex is your go-to shop for engine and mechanical repairs. Our shop is fully equipped to lift, service, and repair large diesel and gas motorhomes, including coach-style units built on F53 chassis like the Zarowni that came into our shop recently.

The customer arrived with transmission problems and concerns about the cooler and lines. Before diving into the repair, our team performed a full courtesy inspection to make sure nothing else would cause the driver problems on the road.

The inspection showed squishy shocks, very worn and cracked leaf-spring bushings, and an air filter that needed replacing. Catching issues like these early is one of the best parts of preventive maintenance, especially on a vehicle that goes on long adventures.

Once the inspection was complete, our technician got to work on the transmission system. His report gives a clear picture of the challenges involved with RVs. Once the transmission lines were removed, the technician had to remove the threaded fitting insert from the bottom of the radiator and the top of the transmission cooler. The quick connect wouldn’t release, and even trying to remove it with a vice didn’t work.

The recommendation was to replace the threaded radiator and transmission cooler inserts during the job. Parts like these can wear with age, and it’s something we see often on older rigs. Replacing these inserts ensured a secure system free of leaks and helped protect the brand-new components being installed. We always ensure thorough motorhome repairs in Spokane. 

After that, the technician continued with the reassembly, including installing the new cooler and transmission lines. We also flushed the lines that couldn’t be replaced (because we’d have to unbolt the engine mount and lift it to replace them!).  

With the new cooler in place, the transmission was securely mounted, the Y-pipe reinstalled, and the system topped off with fresh fluid. A test drive confirmed everything was functioning exactly as it should.

Jobs like this highlight why RV owners come to Motorplex instead of general automotive shops. Large motorhomes require heavy-duty lifts, specialty jacks, advanced diagnostic tools, and technicians trained to work on commercial-grade frames, suspension systems, and powertrains.

Our Spokane shop is designed for precisely this kind of work. Whether you’re driving a motorhome, coach bus, or diesel pusher, we have the space, the equipment, and the expertise to keep it moving. Read tips for motorhome repairs and maintenance.

Get Your RV Repaired Now and Be Ready for Spring

It’s late November and winter is approaching, but this is the perfect time to get your RV tuned and repaired. Many owners wait until spring, only to face long booking delays and last-minute repairs that disrupt early-season travel plans. Booking your motorhome repairs and tune-up now ensures that when warmer weather returns, your RV is ready to hit the road without surprises.

We treat every motorhome like the home-on-wheels it is. We want you to enjoy safe travels, reliable performance, and confidence pulling onto the highway

If you need motorhome repair in Spokane, let’s get to work! Contact Motorplex.