Fuel pump

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

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

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

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

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

KHLOW2008