2003 Ford E-Series Van Fuel Pump

Tiny
GORGMAN
  • MEMBER
  • 2003 FORD E-SERIES VAN
  • 6.8L
  • V10
  • 2WD
  • AUTOMATIC
  • 33,000 MILES
Van was diagnosed with a bad fuel pump. Dropped the tank, decided to check the voltage to the pump connection, was only getting 6.1 volts to the pump connection. I checked the fuse relay and the relay, checked the power to the relay contact and was getting 12 volts. I installed a new relay, the power didn't change. I jumped the fuse connection where the contacts would have been on the relay, got 12 volts to the pump, and it ran, but with the fuse in I still only get 6 volts.
Monday, November 10th, 2014 AT 1:25 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Have you checked the connections for the fuse? If you got 12v when it was jumped, that tells me the wiring is good. So, the only thing left is the fuse connection.
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Monday, November 10th, 2014 AT 2:27 PM
Tiny
GORGMAN
  • MEMBER
  • 2 POSTS
So the problem is in the relay itself?
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Tuesday, November 11th, 2014 AT 9:42 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
You already replaced the relay, correct?
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Tuesday, November 11th, 2014 AT 7:32 PM

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