#REHAB/RANCH: How to Tell if the Motor in Your GMC Motorhome is Bad? (pt. 2)

BY Jim Bounds—In this video, I discuss how to determine if your Olds 455 or 403 engine is bad. I forgot to demonstrate and talk about the importance of performing a compression test in part one. In part two, I dive right in, so follow along!

Jim Bounds at the Motorhome Rehab Ranch in Florida, USA.

If you liked this video and learned something valuable, support us by becoming a Ranch Hand on Patreon by clicking on the logo below so we can keep making videos just like this one. Get 24 hour access to me personally for professional help, anytime for anything!

By the way, here’s a video that the folks at MyMotorhomeLife.com made in 2021. It features Stef and Jared Kohl talking about their experience of owning a GMC Motorhome. Earlier episodes explore some of the issues potential owners need to take into account when considering the purchase of a GMC Motorhome.

Support The Motorhome Rehab Ranch on Patreon. Click to subscribe now!

Guest contributor, Jim Bounds, writes and publishes videos as well as technical articles about the GMC Motorhome; explores its history; and takes the reader through some of the more challenging restoration projects he and his team have worked on over the years.