RV particulars: Tiffin Allegro Bay
Driveline (Engine, Transmission): 190HP Cummins 5.9L, 4spd Allison AT542
Miles: 52,000
Year: 1992
Break Down Description: Driving 70mph up I-65 in south Alabama, notice the temp guage start rising, then raises real fast past the red. Then the coolant light came on. Shut the engine off, drifted to the shoulder. Waited 30 minutes for it to cool, drove it a 10th of a mile, turned off, waited another 30... and so forth. Eventually I made it to an exit and parked it in a Shell station parking lot.
Symptoms: Coolant light on, Engine overheated (instantly i might add), gallons of collant all over the roadway
Effect: Engine overheats hotter than the core of a nuclear reactor and quick.
Cause: broken pulley bearing on water pump. (bad water pump)
Outcome: put on a new water pump in a gas station parking lot and hit the road!
Always carry your tool box!!!