Pre-1997 Models

Replaced plugs...now not turning over

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Old Jul 30, 2009 | 12:11 PM
  #16  
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From: DFW
its in the tank, i would also check your fuel pump relay and fuses before you go through the trouble of doing the fuel pump
 
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Old Jul 30, 2009 | 12:47 PM
  #17  
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Thanks. Do you know where the power distribution box is? I think that's where the FP fuse is on my truck.
 
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Old Jul 30, 2009 | 01:07 PM
  #18  
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I honestly dont know, i would look under hood first, then in each of the foot wells under the dash kinda kick panel area....
 
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Old Jul 30, 2009 | 01:13 PM
  #19  
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I found it. It was under the hood on the driver's side by the firewall. Said "Power Distribution Box" on it :-) Fuse and relay are both fine. Couldn't tell if the relay was working so I temporarily replaced it with the horn relay. Still nothing.

If I could only start up the truck to get it to a shop.......UGH
 
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Old Jul 30, 2009 | 01:31 PM
  #20  
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you can also check the wires at the top of the fuel tank and make sure one isnt broken or something obvious
 
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Old Jul 30, 2009 | 02:32 PM
  #21  
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do you have 1 or 2 tanks? if 2 then are both pumps not working?
 
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Old Jul 30, 2009 | 03:13 PM
  #22  
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The rear tank went about 2 years ago and I never use it. I think it has a crack in it.
 
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Old Jul 30, 2009 | 05:01 PM
  #23  
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Originally Posted by NJFordBoy
...the engine cranks but won't turn over.
Those terms are synonymous. Yours apparently isn't "firing".
Originally Posted by NJFordBoy
Not hearing the fuel pump. I guess it's next in line for replacement.
NO! You don't replace anything until you diagnose it, and it fails. At this point, you haven't even confirmed that power is reaching the pump. Crawl under & connect a meter or 12V test light so you can see it while you cycle the key to RUN.

Click my black Bronco in my signature & read the captions in the '90-96 Fuel System album, especially the 1st diagram that shows how to force the relay to stay on.
Originally Posted by Patman03SprCrw
its not uncommon for those to trip and need to be reset. Even just closing the hood could do it, remember the hood hinge is directly above the inertia switch.
Yes, that's VERY uncommon. It's common for the contacts inside the switch to get dirty, but they don't actually trip.



It's very easy to unplug the switch & install a jumper temporarily in the connector to bypass it for testing.
 
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Old Jul 30, 2009 | 10:05 PM
  #24  
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Steve83 - You're right, the truck isn't firing. I think my pump is in-tank so how do i check that power is being supplied to it?

I broke down and had it towed to the shop boys. Bringing the bikes on the trails this weekend and need my baby purring.

I'll update this thread with the diagnosis and the damage.
 
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Old Jul 31, 2009 | 01:50 PM
  #25  
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Turns out there was no pressure from the fuel pump....so 500 beans later my truck is back on the road. Thanks for your help/comments.
 
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Old Jul 31, 2009 | 01:53 PM
  #26  
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so your plug change was successful after all

glad you got it running again
 
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