Hi All. need info. I broke down on the highway the other day. engine shutdown, couldn't figure out what was wrong. dash lights showed "hot engine" and "low oil" I checked the oil and it was full, and the engine was not overheated, manual temp gauge in the rear reading 185. took one bolt out of the telltale and moved it aside. started the engine just fine. still had hot engine and low oil lights on but not correct. drove to campground... about thirty miles with no problem and showing 185 temp and 60 psi oil. tied starting next morning and with telltale connected it shut the engine down as soon as it had air pressure. about three minutes. where do i start with this, bad sensor ? or relays? or am I even on the right track. any advice will be appreciated
Steve and Cindi 82 mc9
It could be the low oil pressure sending unit that is shutting you down. You can check this by disconnecting the wire from it also.
You can check the engine stop relay but it's probably one of the sensors.
There are two hot engine sensors, one on each side, and one oil pressure. There may be a low coolant sensor, also.
If it shuts down when the air gets up, this should be pretty easy. Disonnect one wire at a time. Start the engine. if it shuts down, that's not the right one. Put it back on and try another one.
If it still stops after you've checked all sensors (2 temp, 1 oil pressure, 1 low coolant) then it's probably the relay. If not, then you may have a short to ground in the circuit.
Steve, I left ya a pretty long response on BNO, if these don't help call me at 731-885-7460 Bryce