Q: fuel press at idle is 45psi when i accelerate it drops to 15psi till i let off on 1995 Jeep Grand Cherokee

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it jumps back to 45psi till i hit the gas again. in the morning time when it has sat all night it runs great as soon as it warms up it starts all over again. please help
(1) Answer
Fuel pump, fuel filter OR the fuel pressure regulator, which may or may not be part of the pump module!
I think on this year model the regulator is fuel rail mounted.
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