Fuel pump

Tiny
DSW422
  • MEMBER
  • 1995 ISUZU RODEO
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 120,101 MILES
My fule pump works and all wiring works going to the pump except at the last connection. I ran a wire to the battery to see if fuel pump works and it does. I also tested the voltage on the last connection and reads good. But when I connect, there is no voltage and dont work. Any suggestions?
Thursday, December 9th, 2010 AT 11:13 PM

5 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Check for proper grounding of the fuel pump circuit. Test wire for internal breakages by tugging on the wire and testing for battery voltage.
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Friday, December 10th, 2010 AT 6:27 PM
Tiny
DSW422
  • MEMBER
  • 24 POSTS
All the grounds are good and the voltage is good at the last connection. Its just when I connect the 2, voltage doesnt go to it. Is there a problem with the connector pieces?
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Sunday, December 12th, 2010 AT 7:36 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Uunder such situation, either the connector is bad or there is a breakage in the wire between connector to fuel pump.

Backprobe the connector on both ends to test for continuity.
Test wire continuity between connector to fuel pump.
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Monday, December 13th, 2010 AT 12:18 PM
Tiny
DSW422
  • MEMBER
  • 24 POSTS
Ok. I figured it out. Turns out the connectors were bad. So I cut off the connection and butt spliced the wires. Now it works fine. Thanks for the help.
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Monday, December 13th, 2010 AT 11:08 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
You're welcome. Glad to know you have fixed the problem.

Have a nice day.
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Tuesday, December 14th, 2010 AT 12:45 PM

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