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Old 11-09-2004, 02:19 PM   #1
meador36
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Default Engine cutting out under load

I'm somewhat new to Jeeps but I have a problem. I have a 94 YJ 4banger that the engine cuts out when I give it gas. It will not do it if I'm sitting still. It seems to only happen once the engine is warm. I have changed the fuel filter and I have never let the fuel go below a quarter tank. Some please help. Thanks
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Old 11-09-2004, 02:37 PM   #2
KatDaddyJames
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Quote:
Originally Posted by meador36
I'm somewhat new to Jeeps but I have a problem. I have a 94 YJ 4banger that the engine cuts out when I give it gas. It will not do it if I'm sitting still. It seems to only happen once the engine is warm. I have changed the fuel filter and I have never let the fuel go below a quarter tank. Some please help. Thanks
my "some please help"

I would start with a common tune up- plugs, wires, distributer cap and rotor button, pcv valve, and air filter. If ALL of this hasnt been done in a while, go ahead and do it.

if it is only doing it when warmed up, your not getting enough fuel...
someone help me out here does the 94 4cyl have a choke, or is it Fuel injected???

if it is carbed you need your mixture adjusted.
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Old 11-09-2004, 04:43 PM   #3
meador36
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I have already replaced plugs, wires, etc. It is fuel inj. I do appreciate the help though. It does not happen all the time but most if that helps.
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Old 11-09-2004, 05:04 PM   #4
VooDuuChild
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Maybe fuel pump or fuel pressure regulator, possibly injectors need cleaning, might be dumb question but how does your air filter look?
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Old 11-09-2004, 05:33 PM   #5
meador36
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Looked good 6 months ago when I replaced it. Would'nt a fuel pump have the same problem when I take the RPMs up in nutreal> Just wondering. Is there a way to check the pump?
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Old 11-10-2004, 01:20 AM   #6
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Could be a plugged up catalytic converter. Sounds like the classic symptoms.
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Old 11-10-2004, 02:51 PM   #7
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I looked at the cat and it can not be it. There is not one there anymore. I have had the jeep for 2 years so I guess it will be ok.
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Old 11-29-2004, 07:04 AM   #8
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Well the problem was the return line on the pump. It was bottoming out on the tank because the gasket had went away. I replaced the gasket and shorten the return line on the pump and everything is working great.
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