Since this is a motorhome, the wiring may be difficult to trace, so let's start with a couple of basics.
In most cases, a crank no start condition is caused by either loss of spark at the spark plugs or a loss of fuel.
Try this. See if the engine will start if you use starting fluid. If it starts and then stalls, we know there is a fuel-related problem. If there is no change, I need you to check if there is spark to the plugs.
Here is a link that explains how to check:
Let me know what you find.
Friday, June 2nd, 2023 AT 8:57 PM