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Old 06-11-2015, 11:30 AM   #1
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95 coachman dynasty Spartan chassis starting problems

Recently purchased 1995 coachman Destiny having starting problems hope someone can help . I've owned this RV for two months and have had no problems . Recently I have had problems keeping it running and getting it started . The vehicle will start and run fine for for a few minutes and then the – will go black and the vehicle will stop . I'll coast to the side of the road and I have to cycle the ignition switch to her three times and the dashboard light up and it will start and I'll be on my way again . The frequency between these events has increased and it will no longer reboot itself by cycling the key . If I leave the key in the on position after some time the dash will flash and the gauges will light up and it will start. I'm hoping someone else may have experienced this problem and and can help me solve mine. It has a Spartan chassis and Cummins diesel. We have planned a long 2 month trip beginning next Tuesday.
Sorry for the long post and thanks in advance.
Justin
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Old 06-11-2015, 12:11 PM   #2
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You didn't mention what engine you have. If you leave the key on when it dies, does wiggling the key do anything? It could be a bad ignition key if so. I had to replace mine in a '98 Spartan/Cummins 5.9 chassis. The other thing to check would be the ignition relay that takes the power from the ignition key and switches a relay to power the things on that circuit. You might trace it by the sound of the 'click' when turning on the ignition. I don't think it's the fuel shut off relay, that wouldn't turn off all the dashboard lights. If you contact Spartan with your chassis # they can give you a complete list of all things and wiring they mounted on the chassis. If it's a Cummins, again they can give you much information about your engine, likewise Allison for the transmission. Start with Cummins, their information will contain the engine and transmission serial #s.
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Old 06-11-2015, 12:20 PM   #3
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Wiggling the key doesn't make a difference. If I leave it in the on position after some time the dash will light up and it will start but doesn't always run for very long. It's a Cummins.
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Old 06-11-2015, 12:53 PM   #4
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O.K., being a 1995, it's either a 5.9 or an 8.3, both mechanical engines, no ECU that could be bad or throw off codes. I would imagine it's either a relay, like I said before or an auto reset circuit breaker. You'll have to trace the power from the ignition switch and see where it's not staying on. Sorry, I can't be more helpful.
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Old 06-12-2015, 02:35 PM   #5
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You could also have a bad wire or bad wire connection in your ignition circuit. Check the ground wire specifically at the ignition solenoid.

Guessing that you have a Cummins mechanical 5.9L engine, after the engine starts the loss of electricity releases the fuel shutdown solenoid arm and closes the throttle.

To keep the engine running in an emergency, you could wire the fuel solenoid in an up position and the engine should keep running as long as the alternator charges the chassis battery. You probably then will not have key guages to manage your rig available.

However, if the transmission will not operate while the engine is running, then I would for sure look at the ignition solenoid as the culprit not passing the electrical current to the dash or the tranny pad.

If you have a 5.9L ISB engine then perhaps the above has some value, but I am not sure.
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