Breakdown Information
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RV particulars: 40' Dutchstar, 3 Slides
Driveline (Engine, Transmission): Cummins 8.3ISC/Allison MH3000 Miles: 58,000
Year: 2003
Break Down Description: Check Engine Light, Loss of Power
Heading south on I25 in Nov/11 and check engine light came on resulting in a drop in power but engine did not die. Pulled over to side and found all pressure/temps normal. Shut off engine, check fluids & found coolant low in the plastic overflow tank. topped up coolant, started engine and carried on down the road. On the way north in March just out of Phoenix problem occured again. Pres/Temp all normal. Fluid levels good.
Had Cummins check ($200) and they could not find any faults. Diagnosis: Must be an electrical fault. Long story short, Removed, cleaned every chassis electrical I could find & reassembled with dielectric grease. Have not had a problem since. Touch wood..
One thing I found out is the Low Coolant Sensor does not have its own dedicated light and will show up as a Check Engine Fault.
The sensor is loacted on the "Flow" side of the expansion tank and I believe an intermitent fault may be happening due to a change in speed/load if there is a rush of fluid into the tank. It is just enough to "Bump" the system and cause a fault. Shutdown & re-start clears it until next time.
Ya, I know. Too much information, I'll quit now. Happy Trails!!
Driveline (Engine, Transmission): Cummins 8.3ISC/Allison MH3000 Miles: 58,000
Year: 2003
Break Down Description: Check Engine Light, Loss of Power
Heading south on I25 in Nov/11 and check engine light came on resulting in a drop in power but engine did not die. Pulled over to side and found all pressure/temps normal. Shut off engine, check fluids & found coolant low in the plastic overflow tank. topped up coolant, started engine and carried on down the road. On the way north in March just out of Phoenix problem occured again. Pres/Temp all normal. Fluid levels good.
Had Cummins check ($200) and they could not find any faults. Diagnosis: Must be an electrical fault. Long story short, Removed, cleaned every chassis electrical I could find & reassembled with dielectric grease. Have not had a problem since. Touch wood..
One thing I found out is the Low Coolant Sensor does not have its own dedicated light and will show up as a Check Engine Fault.
The sensor is loacted on the "Flow" side of the expansion tank and I believe an intermitent fault may be happening due to a change in speed/load if there is a rush of fluid into the tank. It is just enough to "Bump" the system and cause a fault. Shutdown & re-start clears it until next time.
Ya, I know. Too much information, I'll quit now. Happy Trails!!
