2001 Ford F-350 Fuel/electrical

130,000 MILES
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RKH8772
  • MEMBER
  • 2 POSTS
I was driving my 7.3 diesel truck around town and it seemed like I was running out of gas- lack of power and starting to misfire. I was low on fuel, but light was not on. Drove 1/2 mile to station and put in1/2 tank. I started the 2 miles home and truck stopped while going up neighborhood hill. Gt a tow home and replaced fuel filter/water separator. Truck ran for about a minute, then stopped, misfiring all the time. I tried to start it a couple times, but it would not start. After sitting overnight, the battery's so dead that the door locks won't even work. No lights were on to obviously drain battery. I was going to try and troubleshoot tonight so any thoughts on where to start would be most appreciated.
Oct 27, 2013 at 11:53 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
start by charging the battery. low voltage will cause all kinds of issues

Roy
Oct 28, 2013 at 11:23 AM
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RKH8772
  • MEMBER
  • 2 POSTS
It's not the battery. I troubleshooted a little last night and have about a 14 amp (not milliamps) parasitic draw through circuit/fuse 20, which is the ignition (B4&B5). To find that, I completely disconnected one battery and the ground from the other, then checked for current between the disconnected ground cable and post and started pulling fuses until I found what circuit the current was through. I can't help but think the two are somehow related, but I expected it to be through the fuel pump relay circuit, since it had symptoms similar to running out of gas although I have never run out in a diesel before. I'm guessing something failed, with a motor etc... stuck on, so that it's drawing current through the ignition circuit, figuring it could be almost anything that kicks on with the key.
Oct 28, 2013 at 11:35 PM
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