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2003 Ford F-150 No power to fuel pump

Tiny
HOLEHOUND
  • MEMBER
  • 2003 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 91,000 MILES
With a test light I show no power to fuel pump plug tested after turning igintion switch on, power goes to the fuel shut off switch. All fuses are good under dash and alos in distribution box fues under hood replaced Relay's in power box, any suggestions

Thanks Kelly
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Thursday, April 17th, 2008 AT 10:30 PM

4 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check fuse no.10 20amp in the power distribution box. If okay do below

At the inertia switch jump the dark green and yellow to the pink and black-did the pump come on?-Get back.
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Thursday, April 17th, 2008 AT 10:45 PM
Tiny
HOLEHOUND
  • MEMBER
  • 2 POSTS
I have power going in and out of inertia switch, check with test light. I have no power @ pump, any other suggestions. Does power go from inetria switch direct to fuel pump?

Thanks Kelly
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Friday, April 18th, 2008 AT 6:46 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Yes it does. Try directing power to the fuel pump from the battery if it doesn't come on-the pump is defective.
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Saturday, April 19th, 2008 AT 7:53 AM
Tiny
HOLEHOUND
  • MEMBER
  • 2 POSTS
Do you know which wire is the Hot wire at the Fuel Pump. If I get the wrong one will this cause a prolbem.

Thanks Kelly
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Tuesday, April 22nd, 2008 AT 9:52 PM

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