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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

94' 250 won't start

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Old Feb 22, 2013 | 12:11 PM
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94' 250 won't start

My 94' 250 5.8 will turn over but won't start. Not getting fuel to the rail, no fire to the plugs. Any idea where to go from here?
 
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Old Feb 22, 2013 | 12:38 PM
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Does the fuel pump turn on for a second when you turn the ignition on?
 
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Old Feb 22, 2013 | 12:49 PM
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From: whitehouse tx
I had same problem.I heard fuel pump come on.I check pressure relief valve for fuel.I tool distributer cap off and moisture was in it.wiped out fired right up
 
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Old Feb 22, 2013 | 01:03 PM
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Originally Posted by stewart89
Does the fuel pump turn on for a second when you turn the ignition on?


Nope the fuel pumps don't run. But would that explain no fire?
 
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Old Feb 22, 2013 | 01:08 PM
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Well that would explain why your not getting any fuel but has nothing to do with the no spark. Have you tried having someone crank the truck while you watch spark at each plug? Also, do you have dual tanks?
 
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Old Feb 22, 2013 | 01:12 PM
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I have tried that. No spark. I cranked it up at 4:30 am to go hunting and let it idle. After about 3 minutes it died. No gas not spark. It is dual tank and neither fuel pump works so I doubt it is the fuel pump.
 
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Old Feb 22, 2013 | 01:29 PM
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I would start at the eec relay and go from there. If that checks out I would check the fuel pump relay and coil power. Strange for them both to go a the same time which makes me think eec.
 
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Old Feb 22, 2013 | 01:29 PM
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Also, pull codes from your computer and see if that tells anything.
 
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Old Feb 22, 2013 | 01:33 PM
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One quick thing to check is the ignition fuse in the box, it's a 20 amp.
 
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Old Feb 22, 2013 | 01:51 PM
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I lost the fuel pumps and the ignition on my '94 F-150. I think it's the third maxi fuse from you as you are standing on the driver side, in that fuse box under the hood. It turned out that radio capacitor that hooks on the coil had shorted out blowing the fuse as soon as I turned the ignition switch on. Your problem may be completely different but I would check those maxi fuses in the fuse box under the hood.
 
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Old Feb 22, 2013 | 02:41 PM
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Fuses are good. I can't pull any codes. Even ran a ground cable from the single point EEC test connector to the negative battery terminal and wouldn't pull codes. Is my computer fried?
 
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Old Feb 22, 2013 | 02:45 PM
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Anyone have a diagram of the relays? Don't know what is what.
 
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Old Feb 22, 2013 | 02:48 PM
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So you have checked your ignition fuse?
 
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Old Feb 22, 2013 | 02:51 PM
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Originally Posted by stewart89
So you have checked your ignition fuse?
Yep it's good.
 
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Old Feb 22, 2013 | 02:52 PM
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The EEC IV relay is on the fender near the battery. The fuel pump relay is next to it. Both relays have power from a fusable link of the starter relay. The EEC IV relay is a brown connector, the fuel pump is green.
 
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