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Whats the fuel pressure supposed to be?

This is a discussion on Whats the fuel pressure supposed to be? within the LT1 forums, part of the Vehicle Specific category; ok my 96 trans am will not crank and i have a fuel pressure tester and i am fixing to ...

  1. #1
    Import Killer camarostripes96's Avatar
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    Whats the fuel pressure supposed to be?

    ok my 96 trans am will not crank and i have a fuel pressure tester and i am fixing to test the fuel pressure!! what is the fuel pressure supposed to be on with the key just turned on and what is it supposed to be with the engine trying to start?

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    1995 z28

    mine stays right around 40-42 area... where its set

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    Import Killer camarostripes96's Avatar
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    ok so there is a clear hose that came with this fuel pressure tester , where does it go?

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    hmm should just plug into where shrader valve is basically

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    Import Killer camarostripes96's Avatar
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    ok here is what happend , i hooked it up and turned on the key and it went all the way up to 43-44 psi and slowly backed off down to 35 of so......what is my problem or is that normal?

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    sounds like leak off kinda deal

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    Import Killer camarostripes96's Avatar
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    god this is PI$$ING me off so BADDDDDLLLLLLLLLLYYYYYYYYY GGGGRRRRR!?!?!?!?!?!?!?!

  8. #8
    Moderator Firebirdjones's Avatar
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    That pressure should hold steady.

    If it's bleading down, there is a diagnostic procedure you need to go through that will determine where the leak down is,,,,,whether it's the pressure regulator, injector, or fuel pump.

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