Electric fuel pump. - JeepForum.com
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post #1 of 2 Old 04-18-2010, 01:20 PM Thread Starter
bella mia
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1988 YJ Wrangler 
Join Date: Feb 2008
Location: Pensacola
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Electric fuel pump.

When I turn my key on I can hear the fuel pump run for a couple of seconds and then turn off. What makes it turn off ?

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post #2 of 2 Old 04-18-2010, 01:39 PM
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1992 YJ Wrangler 
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Location: New York
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Originally Posted by bella mia View Post
When I turn my key on I can hear the fuel pump run for a couple of seconds and then turn off. What makes it turn off ?
the computer. it controls the FP relay and cycles it on when you first turn the key before starting to prime the system for starting

RIP: '88 YJ 2.5L Ax-5 NP231
Posi-Loked. Herculined. Optima yellow top. 1" Shackle, 2" BDS. Cragar 397's Aussie front.

92 YJ 4.0L Ax-15 231
5" springs, 1" shackle 31's or 35's depending on my mood
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