1989 FORD F-150 NO START

  • Tiny
  • Marineboy10102
  • 1989 Ford F-150
  • 5.0L
  • V8
  • 2WD
  • automatic

I have a 89 f150 2wd 302. And non of the fuel pumps are working. There is power to the wires at the relay but by the time it gets to the pump its only reading 0.01 v's I checked the relay and the fuse. And traced the wire and can't fine nothing wrong with it. Help please

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Saturday, July 19th, 2014 AT 8:09 AM

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  • Tiny
  • Wrenchtech
  • Expert
  • 20,071 posts

Check the Inertia switch under the dash on the passenger side, behind the right kick panel. See if the red button popped up. Push it down if it did.

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Saturday, July 19th, 2014 AT 9:26 AM
  • Tiny
  • Marineboy10102
  • Member

The switch wasn't poped.

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Saturday, July 19th, 2014 AT 8:13 PM
  • Tiny
  • Wrenchtech
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  • 20,071 posts

Is it a dual tank system or single?

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Sunday, July 20th, 2014 AT 5:13 AM
  • Tiny
  • Marineboy10102
  • Member

It's a duel tank system but the rear tak pump is bad so I only use the front tank

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Sunday, July 20th, 2014 AT 9:39 AM
  • Tiny
  • Wrenchtech
  • Expert
  • 20,071 posts

You're just going to have to systematically follow the wiring diagram to determine where the fault in the circuit is.

http://i1198.photobucket.com/albums/aa448/Wrenchtech/77999686.gif

http://i1198.photobucket.com/albums/aa448/Wrenchtech/42308314-1.gif

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Sunday, July 20th, 2014 AT 10:06 AM

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