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John Deere Tractors Discussion Forum

318 runs then suddenly quits ....

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D. Fischer

01-27-2004 23:46:32

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I have a 318 with an Onan engine that starts fine, runs for 5 minutes, then shuts off. When the engine shuts off, I can hear a "click" sound, like a soleniod and there are no lights lit up on the dash. I can wait 5 - 10 minutes, I and all of a sudden the dash lights come on and the engine will start up again. Anybody have any ideas?

I saw this in an Ebay ad, do you think this could be it??:

John Deere 316, 317, 318, 420 lawn and Garden Tractor electronic ignition trigger module and rotor. JD part number HE166-0785 for the module, retail is over $70. This module is what usually goes bad on an Onan and causes the engine not to start or only run for a minute or two then shut down.

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05-14-2006 11:40:43

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 Re: 318 runs then suddenly quits .... in reply to D. Fischer, 01-27-2004 23:46:32  
There is a circut breaker under the battery that will cause this problem. I have the same trouble but no click. the click is the circut breaker, I would bet money on it.

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01-28-2004 10:02:44

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 Re: 318 runs then suddenly quits .... in reply to D. Fischer, 01-27-2004 23:46:32  
Are you running a snowblower with the electric pto engaged? Could be shorting out and causing the circuit breaker to kick out.

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01-28-2004 04:11:41

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 Re: 318 runs then suddenly quits .... in reply to D. Fischer, 01-27-2004 23:46:32  
Since all your dash lights go off, I SUSPECT the ignition module on the engine is NOT at fault. Generally, when the ignition module on the engine goes bad, they just shut off, without the dash lights shutting down.

It could be a weak circuit breaker tripping, or some kind of short that makes the breaker trip.

I would start by locating the circuit breakers, and locating which one trips by checking with a test light while it is tripped. Look for corrosion on the breaker terminals and clean, or just replace the breaker and try it.

If you leave the key on for five minutes without starting the engine, do the dash lights still go out?

It might be something weird with the safety module, also.

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