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Old03-11-2007, 07:29 PM #1
kenny kustom
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1989 YJ Wrangler 
 
Join Date: Sep 2006
Location: Gimli
Posts: 428
jeep sputtering and stalling
My Jepp has been doing some weird stuff lately. Once ans a while it will just sputter and high idle or sputter and stall. It has stalled when driving a few times too. Crank and crank. Wait a while and it will fire right up fine.. Over the weekend I installed the FirePower Performance Ignition. Fired up great and smooth. But it's still doing it. I can hear the fuel pump comming on. I am going to try fuel filter tomorrow. After that, im thinking pump. QUESTION : Do i replace the internal with another, or go with a outboard frame mounted pump ? Or is it something else ?
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1989 yj. AMC 360, Cj front clip and custom interior/dash. Herculiner inside and out, Dana 60's, 5.38's, ARB's. 40" iroks.

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Old03-11-2007, 08:00 PM #2
Raindem
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1993 YJ Wrangler 
 
Join Date: Apr 2005
Location: Arizona
Posts: 249
I think you're on the right track. Sputtering as you describe it is usually a fuel delivery issue. Make sure all your lines and fittings are in good shape.
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Old03-12-2007, 07:04 AM #3
kenny kustom
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1989 YJ Wrangler 
 
Join Date: Sep 2006
Location: Gimli
Posts: 428
Going to attach fuel pressure guage to the rail this morning, and check the pressure when idleing
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1989 yj. AMC 360, Cj front clip and custom interior/dash. Herculiner inside and out, Dana 60's, 5.38's, ARB's. 40" iroks.

2008 JK Rubicon Unlimited.
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Old03-14-2007, 12:31 PM #4
kenny kustom
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1989 YJ Wrangler 
 
Join Date: Sep 2006
Location: Gimli
Posts: 428
solved !!!!!!!!! My crank sensor had melted against the exhaust downpipe. One of the wires was shorting out.
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1989 yj. AMC 360, Cj front clip and custom interior/dash. Herculiner inside and out, Dana 60's, 5.38's, ARB's. 40" iroks.

2008 JK Rubicon Unlimited.
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Old03-14-2007, 12:36 PM #5
TravisR
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Join Date: Mar 2006
Location: chicago area
Posts: 201
sorry... whats a crank sensor???
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