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OEM Tech Discussion Forum for OEM (Original Equipment) or stock XJs and MJs.

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  #1  
Old April 19th, 2003, 16:29
TN William TN William is offline
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Starts, Idles, Sputters, Dies

As the title states. This is on an 89 with 4.0. It was running great until I pulled it in my shop to replace an axle seal. While I was at it I installed a cone filter (homemade tube, attached 2 1/2" hoses, blocked off vac line) and changed the gasket for my fuel pump. Now it starts right up but begins to sputter and die within 10-15 seconds or immediately if I give it throttle. I checked all the vacuum lines.
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Old April 19th, 2003, 16:31
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Kejtar Kejtar is offline
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did you chek the fuel pressure? You said you replaced the fuel pump gasket....

Kejtar
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Old April 19th, 2003, 18:50
Sparks Sparks is offline
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how about fuel pump relay or resistor. Sounds like resistor wire is unplugged
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Old April 21st, 2003, 06:28
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satan satan is offline
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I'm with checking the ballast resistor as well (especially in an '89 - if it's early production the ballast may be close-enough to your home-made cone to have been involved with some kenetic event)
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