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Engine stalls and shuts off if I hit the gas too hard

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Old 06-02-2015, 07:56 AM
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Default Engine stalls and shuts off if I hit the gas too hard

91 Cherokee sport 4.0. I have a high flow system (cold air, 4 port injectors, cat back exhaust, 62mm Tbody) and it has ran great for a while but recently every time I hit the gas a little hard, like starting from a stop light or even just pulling out of my driveway, it will shudder and shut off. Would this be a fuel pump problem or fuel line problem?

Last edited by shoffman1; 06-02-2015 at 08:31 AM. Reason: grammar
Old 06-02-2015, 09:31 AM
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Originally Posted by shoffman1
91 Cherokee sport 4.0. I have a high flow system (cold air, 4 port injectors, cat back exhaust, 62mm Tbody) and it has ran great for a while but recently every time I hit the gas a little hard, like starting from a stop light or even just pulling out of my driveway, it will shudder and shut off. Would this be a fuel pump problem or fuel line problem?
I would start by pressure testing at the rail and see what psi you get.
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