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Thread: 4.3 Vortec/Fuel Pressure Regulated Where?

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  1. 07-10-2005 09:36 AM #1
    LS1GMCTruck
    LS1GMCTruck is offline Senior Member
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    I have a 1996 GMC 4.3L Vortec engine. Question? Where or how is the fuel pressure regulated? At the fuel pump in the fuel tank or at a regulator in-line or on the engine itself? Anybody know? Thanks in advance. Gar
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  2. 07-12-2005 10:39 AM #2
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    NITROUS
    NITROUS is offline Senior Member
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    The regulator should be under the plastic intake plenum. Are you loosing fuel pressure?


    97 GMC, 2002 LS6.

    1991 GMC Syclone #1428
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  3. 07-14-2005 07:33 AM #3
    LS1GMCTruck
    LS1GMCTruck is offline Senior Member
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    Originally posted by Vortec383@Jul 12 2005, 09:39 AM
    The regulator should be under the plastic intake plenum. Are you loosing fuel pressure?
    needed this info for a engine swap...Thanks, Gar
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