Community Forums

Navigator70 · 12-23-2024, 09:27 AM

Thanks for the welcome, I am new to the group. Just got a Monaco Diplomat 2000, now trying to get it operating properly. Praying I didnt get burned by being a novice. many little quirks to figure out. Check engine light came on after I got home from a 3 hour drive, oil pressure gauge pegging out coolant temperature bouncing around. I believe all can be resolved. Thanks again I will need help, and I am willing.

jacwjames · 12-23-2024, 09:55 AM

I would suggest posting specific problems in the correct forum.

You have a Cummins engine so post about the check engine light and oil pressure and coolant temp bouncing in that forum with separate posts.

CEL could be a number of things, easiest thing to try first is changing fuel filters. If you don't know the history on when service was done I'd suggest a complete service. Oil & filter, air filter, fuel filters. and see if that takes care of it.
Check into some sort of engine monitoring system. Bluefire makes a bluetooth type. Make sure what every you get can read fault codes.

The dash gauges all rely on a good ground with, which is daisy chained, so start checking grounds.

Monaco also installed separate sending units for the oil pressure, engine temp and transmission temp. These are different then what the ECM sees on the engine. So the oil pressure sending unit may be bad. Just have to find it and check.