Gulf Stream Owners RV Forum - View Single Post - Supernova engine stopped on own, won't start or turnover.

Vinnie · 07-10-2023, 10:33 AM

So, we got stranded again this past week. Similar problem to those listed above. Engine suddenly shut down as we were cruising on I-8; system tried to recover initially, and transmission downshifted to try to maintain speed on cruise control. Ended up getting towed to El Centro, CA where she once again sits.

Have full crank but no start; gauges cycle properly and "wait to start" lights up; engine cranks normally but no life. All of the suspect connections mentioned above were already cut-out and direct spliced and 40-amp fuse was replaced with self-resetting circuit breaker so engine would restart if it died during warm-up idle. No other blown fuses found. Local shop (not International) can't seem to connect with ECM through data port and was not able to find problem. He suggested getting it to dealer. Closest International dealer is in Yuma (60 odd miles), and they do not want to work on a motorhome.

Anyone know of good shop in the Yuma, AZ area? Other choices would be to have it hauled to Phoenix (same dealer chain as Yuma), San Diego (closest "big city") or maybe up to Las Vegas?

07-10-2023, 10:33 AM	#37
Vinnie New Member Join Date: Apr 2021 Posts: 29	More Fun So, we got stranded again this past week. Similar problem to those listed above. Engine suddenly shut down as we were cruising on I-8; system tried to recover initially, and transmission downshifted to try to maintain speed on cruise control. Ended up getting towed to El Centro, CA where she once again sits. Have full crank but no start; gauges cycle properly and "wait to start" lights up; engine cranks normally but no life. All of the suspect connections mentioned above were already cut-out and direct spliced and 40-amp fuse was replaced with self-resetting circuit breaker so engine would restart if it died during warm-up idle. No other blown fuses found. Local shop (not International) can't seem to connect with ECM through data port and was not able to find problem. He suggested getting it to dealer. Closest International dealer is in Yuma (60 odd miles), and they do not want to work on a motorhome. Anyone know of good shop in the Yuma, AZ area? Other choices would be to have it hauled to Phoenix (same dealer chain as Yuma), San Diego (closest "big city") or maybe up to Las Vegas? __________________ Vinnie 2009 Endura 6341 Bulletproofed Engine (turned out not to be bulletproof)