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Unread 05-11-2013, 04:24 PM   #1
Melchior
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1980 CJ5 
 
Join Date: May 2012
Location: Appling, Georgia
Posts: 8
Help! Fuel flow problem...

I'm having no fuel getting to the fuel filter.. installed new fuel pump and blasted fuel line with air compressor.. what else is left? Could it be something with the sending unit?

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Unread 05-11-2013, 04:37 PM   #2
LumpyGrits
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1985 CJ7 
 
Join Date: Jul 2010
Location: The Mojave Desert Palmdale Ca. U.S.A.
Posts: 5,181
Did you mess with the fuel tank or system of late?
Take your gas cap off and check flow again.
Are you SURE there is any fuel in the tank?
LG
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Unread 05-11-2013, 04:42 PM   #3
hp_lovecraft
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1981 CJ5 
 
Join Date: Sep 2009
Location: Maine
Posts: 1,051
You could trying running a small hose to a gas can near the fuel pump, then turn over the engine to see if it pulls gas.

I had a problem years ago where no fuel was getting to the carb. But when I by passed the tank, etc, it worked fine. Turned out that when I had dropped the tank to replace the sender, I pinched the fuel line when reintalling the tank. Maybe you can a cut/hole in the line, and its sucking air?
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Unread 05-11-2013, 06:33 PM   #4
roboto65
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1976 CJ5 
 
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Location: Conroe, Texas
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I had a problem like this I would put fuel in the carb the eng would run till it died but the fuelpump would not pump fill the bowl on the carb figured I would drive it back it up just to check the trans rebuild I had done and, walla the fuelpump started working not sure why if it had any thing to do with movement or what but it has run fine since.
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Unread 05-11-2013, 08:09 PM   #5
Melchior
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1980 CJ5 
 
Join Date: May 2012
Location: Appling, Georgia
Posts: 8
Quote:
Originally Posted by hp_lovecraft View Post
You could trying running a small hose to a gas can near the fuel pump, then turn over the engine to see if it pulls gas.
Thanks, I'm going to give this a try tomorrow!
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Unread 05-12-2013, 08:34 PM   #6
Melchior
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1980 CJ5 
 
Join Date: May 2012
Location: Appling, Georgia
Posts: 8
OK so the fuel trick worked, so i'm assuming I must've been sucking air from somewhere...
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Unread 05-13-2013, 07:27 AM   #7
Caish
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1987 XJ Cherokee 
 
Join Date: Jul 2010
Location: Arkansas
Posts: 604
Mines alot older than yours, but I had an issue with a cracked fuel line.
The line is a hard semi-flexible plastic and my was cracked nearly in two.
Allowing it to suck air.
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