RV and Bus Repair
Motorhome or Coach Down? Same Truck, Same Hours.
Rig Doctor services motorhomes, coaches and buses with the same heavy duty tooling used on semis, including tires, air, electrical and chassis work most RV shops turn away.
At a Glance
- Covers
- Class A motorhomes, coaches and buses
- Includes
- RV tires sourced and fitted on site
- Why
- A coach chassis is a truck chassis
- When
- Weekends and holidays included
A Class A motorhome sits on a heavy chassis with truck air brakes, truck tires and truck electrical. That is why an RV dealer often cannot help you and a heavy duty mobile technician can.

Tires are the most common RV call. Sourcing the correct load range, getting it delivered and fitting it where the coach sits, often on a weekend when nothing else is open. One reviewer describes calling at half past two on a Sunday afternoon and having two front tires quoted, sourced and installed for the price quoted.
Chassis work covers air systems, brakes, suspension, charging, starting and the diesel engine itself. Coach specific systems such as leveling, slides and generators get diagnosed to the point of an honest answer about whether it is a chassis fault or a house fault.
Entertainer coaches and tour buses get the same treatment, including the three in the morning version. The team has taken a bus call ninety miles out when nobody closer would answer the phone.
What That Covers
- RV and coach tires sourced and fitted on site
- Air brake, suspension and chassis repair
- Charging, starting and 12 volt electrical faults
- Diesel engine diagnostics on coach chassis
- Weekend, holiday and overnight calls
Read the Symptom
What It Usually Means
Air will not build before you can move
A coach uses the same air system as a truck. It gets tested the same way.
Tire aged out or damaged far from home
Load range matters more than tread depth on an RV. Do not let anyone fit the wrong one.
No start at a campground
Batteries, chassis charging or fuel. Being parked for months causes most of these.
Dash warnings on a coach chassis
A chassis fault reads like a truck fault, because it is one.
Other Work We Do
Where to Find Rig Doctor LLC
10145 Independence Ave, Waterloo, IA 50703
Call the Doc and describe what it is doing.
One number, answered by a technician, at any hour.