Fuel pressure regulator?

Nick · May 13, 2005

I've recently developed a problem were my '96 4.0L like to have the gas pedal pushed to the floor before it will start. I searched the old threads and found one by "Sparky" who mentioned that he said to have had a similar problem where his FPR diaphram was gone. So my questions are:

1. how do I test for this
2. what else could be causing this behavior
3. if its the FPR should I buy stock, NAPA, adjustable?

thanks for the help

jeepsx3 · May 13, 2005

Look at Trouble starting must floor it? on here. Similar to your problem.

On 96 the FPR is part of the fuel pump in the tank and really expensive.

Brian Carpenter · May 13, 2005

...And hard to get to. Could buy a generic in-line model from NAPA and install in protected area easier.

buffalomatt350 · May 14, 2005

jeepsx3 said:
Look at Trouble starting must floor it? on here. Similar to your problem.

On 96 the FPR is part of the fuel pump in the tank and really expensive.

Isn't it in the fuel rail? And vacuum operated?

Nick · May 14, 2005

the jeep died on me while driving to work, first the check engine light then no workie, so I had it towed to my neighborhood garage. They ran diagnostics on it and the only code they could pull was for a engine temp sensor and installed a new one. Now it runs fine. Could someone explain this to me.......

jeepsx3 · May 14, 2005

for 96 and later it is no longer on the fuel rail

badge714 · May 14, 2005

Nick said:
the jeep died on me while driving to work, first the check engine light then no workie, so I had it towed to my neighborhood garage. They ran diagnostics on it and the only code they could pull was for a engine temp sensor and installed a new one. Now it runs fine. Could someone explain this to me.......

http://members.cox.net/wilsond/Fixes/diagnostics.html Here is a sheet on the sensors that may help you out. Tell what mode that the sensor affects. badge714 [email protected]

creeperjeep · May 14, 2005

FYI a stupid fuel pressure regulator is like 80 bucks

Fuel pressure regulator?

Nick

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jeepsx3

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Brian Carpenter

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buffalomatt350

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Nick

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jeepsx3

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badge714

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creeperjeep

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