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  1. #1

    Default Help Locating PCV & Brake Booster

    I need help locating the PCV valve or the break booster line, going to be running seafoam thru one of them. The engine is in a 2005 Silverado, 4.3L V6.

    Thanks in advance,

  2. #2


    The brake booster is the large pancake shaped can between the firewall and the master cyl. The large diameter vacuum hose fron the intake connects to this can. It can be removed at the booster end so you can slowly pour in the seafoam...

    I'm not sure if the later 4.3L have PVC's, at least the later versions inthe S-10 didn't have one.
    Still Loyal to GM after all these years...:shocked:
    2006 Impala LT 3.5L
    2005 Silverado WT small cab/longbed 4x4 4.3L V6
    1999 Grand Am 3.4L in TX w/ our youngest
    1993 GMC Jimmy 4.3L 4 door 4x4 'Ole Rusty' - 'SOLD'
    1988 S-10 small cab/longbed HT3.4L Crate Engine
    1970 Nova 250 I-6, factory 3 sp floor shifter.
    1968 Chevelle 'Nomad' Wagon 250 I-6 w/ 3 on da' tree.

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