No power to fuel pump on '93 Grand Cherokee Limited - JeepForum.com

 
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post #1 of 3 Old 09-22-2011, 06:11 PM Thread Starter
bearman68
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1993 XJ Cherokee 
 
Join Date: Sep 2011
Location: Wasilla
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No power to fuel pump on '93 Grand Cherokee Limited

I have a '93 Grand Cherokee Limited that my daughter drives. I have no power to the fuel pump. I have power to the relay & have replaced the relay. I have also manually reset the security system (no remotes). Any ideas?

Thanks!

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post #2 of 3 Old 09-23-2011, 06:50 AM
mattbrand
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1997 ZJ 
 
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Do you have grounds at the relay? if not it could be the signal from the pcm that isn't working. also check your fuses. an efi fuse could keep the pcm from sending the signal to the relay. also check the wire from the relay to the pump for high resistance. you want continuity between the fuelpump and the relay power wire.
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post #3 of 3 Old 09-25-2011, 11:56 PM Thread Starter
bearman68
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1993 XJ Cherokee 
 
Join Date: Sep 2011
Location: Wasilla
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Thanks Matt. I'll check those things tomorrow. I just got home from a 4'wheeling trip. I appreciate your suggestions & will let you know the results.
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