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Shutoff problems

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  #1  
Old 07-26-2009, 10:24 PM
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Shutoff problems
What causes a F250 powerstroke diesel to keep running when ignition switch is turned off?
 
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Old 07-27-2009, 06:12 AM
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Welcome to FTE. I'd guess a faulty ignition switch. Or possibly a bad GEM / VSM
 
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Old 07-27-2009, 10:03 AM
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Im with Chris i know others have had this problem...

Oh and Welcome to FTE.
 
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Old 07-31-2009, 03:58 PM
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Originally Posted by edram101
What causes a F250 powerstroke diesel to keep running when ignition switch is turned off?
New ignition switch installed still not shutting off. Have to remove Powertrain EEC Relay #302 to get it to shut off and with it removed it will start and shut down!
 
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Old 07-31-2009, 07:07 PM
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What year is your truck? The relays got moved around in different years, so we kind of need to know what relay #302 is so we can go from there.
 
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Old 07-31-2009, 07:45 PM
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Shutoff problems
2002 F250 powerstroke 7.3 diesel
 
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Old 07-31-2009, 08:06 PM
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So you can still start the truck if you pull relay #302 (powertrain)? That's not supposed to happen, but it may provide a clue.
 
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Old 08-01-2009, 11:06 PM
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Shutoff problems
Yes it will start and run with the powertrain relay #302 out . Any guesses?
 
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Old 08-03-2009, 07:45 PM
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I would start by looking for a couple of wires that are shorted together. If the truck runs with the relay out then power is being bypassed on the relay portion .
 
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