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fuel pressure loss with AAM return system

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Old Mar 2, 2005 | 03:53 PM
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From: council bluffs Ia.
Default fuel preasure lose with AAM return system

I noticed when I shut off the car for awhile and come back out . I'll turn on the ingnition and the fuel preasure is slowly dropping off . If I let it sit a day...its down to 25psi . Do you guys know where would be the first place to check ? I dont see or smell any gas . And my preasure gauge is hooked directly to the FPR
THANKS...Bill
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Old Mar 2, 2005 | 04:06 PM
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one guy had a leak at the gasket where the fuel pump slips into the assembly. Might be the first place to check.
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Old Mar 2, 2005 | 04:10 PM
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I'll have to pull the back seat out and pull the assembly out . What type of gasket is it ? rubber ?
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Old Mar 2, 2005 | 04:34 PM
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When you turn the ignition on, if you dont fire up the engine the fuel pump turns back off. You may not have a leak, depends on how rapid the pressure is dropping.
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Old Mar 2, 2005 | 04:41 PM
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when I go out and its been sitting . I'll turn on the ingnition , the fuel preasure will read in the low 40's . It will not jump up to 50 , but drops off by about 1 to 2psi per minute
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Old Mar 2, 2005 | 06:13 PM
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yea 1 or 2 psi per minute sounds just fine... that doesnt sound like a leak at all, that is just cause the fuel pump turns off after a couple seconds unless you start the engine.
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Old Mar 2, 2005 | 06:19 PM
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thanks Charles
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