Class A 330 diesel won't shut off
2004 Monaco with 330 Cummins that won't shut off. While the key is off engine runs, turn on lights or cruise engine shuts off. Alternator just replaced. Could this be ground problem or miss wired alte...
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Over the years there have been several time where my engine will be slow to stop running after turning the key off... several seconds delay. Today it decided to not shut off at all while I was refueling and then when I got home after a eight week trip...I guess that's better than not running. Had to disconnected the neg battery terminals and the engine disconnect switch to get it to stop after pulling the fuse for the signal from the key in the back run box did not stop it.
Isolated the problem to a bad diode on the Bird board which was back feeding alternator voltage even though the key was turned off. When the alternator voltage gets to 13.3 the Bird activates the big boy to start charging the house batteries too. With solder joints this big on the bird board it's fairly easy to replace the diodes yourself which is what I plan on doing. Hopefully we will hear back from him.
Today I got around to putting in the $3 MR750 diode in the Bird board that was back feeding power so my engine would not shut off...this fixed the problem. I think the OP has the same problem and have talked to him about it.
Isolated the problem to a bad diode on the Bird board which was back feeding alternator voltage even though the key was turned off. When the alternator voltage gets to 13.3 the Bird activates the big boy to start charging the house batteries too. With solder joints this big on the bird board it's fairly easy to replace the diodes yourself which is what I plan on doing. Hopefully we will hear back from him.
Today I got around to putting in the $3 MR750 diode in the Bird board that was back feeding power so my engine would not shut off...this fixed the problem. I think the OP has the same problem and have talked to him about it.
