#9 PCM fuse under the hood keeps blowing - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 07-12-2013, 07:25 AM Thread Starter
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#9 PCM fuse under the hood keeps blowing

I have a 2003 E350 7.3L cutaway van. I stopped at the fuel station to get some fuel and truck was running fine. Went to leave and the truck would not restart. Had it towed back to my warehouse and found that the truck was acting like it wasn't getting any fuel. There is no power getting to the electric fuel pump. I ran a hot wire to it and it runs fine. I found the #9 PCM fuse under the hood keeps blowing. I replaced it and try and start the truck and the fuse blows again. Not sure what is causing the problem. Any help would be greatly appreciated.
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post #2 of 6 Old 07-12-2013, 08:23 AM
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Start by looking in the Owner Manual for all the stuff associated with that fuse and go from there.
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post #3 of 6 Old 07-12-2013, 08:38 AM Thread Starter
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I don't have any of the manuals. I bought the truck used and of course it came with nothing. I read somewhere else that the fuel heater send power to the pcm and to try unplugging that. I live in south FL and most days start out at 75 so I don't think it is really necessary here. I'm not sure where the fuel heater is located though and how to unplug it.
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post #4 of 6 Old 07-12-2013, 08:51 AM
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Go get the OM here -> Owner Manuals | fleet.ford.com

If it IS associated with the fuel heater (and people in MN don't need it either ) it's a plug at the bottom of the Filter Housing, in the Valley, facing back.
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post #5 of 6 Old 07-12-2013, 09:20 AM Thread Starter
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thanks, i reached back behind the fuel filter bowl and found the plug was unplugged. I plugged it back in, put a new fuse in it and it started right up.
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post #6 of 6 Old 07-12-2013, 11:06 AM
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Yea but,,,, that's not what kept it from running or blowing the fuse...

It was probably unplugged for a reason too. You might now blow another fuse because you put it back in
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