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Thread: Weird PCV Valve

  1. #1

    Default Weird PCV Valve

    I just changed the PCV valve on my 2002 Chevy Suburban with 5.3L Flex-Fuel engine. I was replacing the knock sensors and decided to replace the PCV valve. The old valve (AC/Delco) didn't rattle when you shook it, but the new one (Purolator) made the rattling sound I'm used to hearing. I looked a little closer and didn't see any internal parts in the old PCV valve. Also, its orifice hole was noticeable smaller than the replacement.

    Has anyone else notice this?

  2. #2


    Nope, you had the only one!

    ---------- Post added at 04:56 PM ---------- Previous post was at 04:55 PM ----------

    GM was just messing with your head.

    2005 Chevy Silverado Z71 Crew Cab
    6" Skyjacker lift w/Edlebrock dual front remote resoviour shocks, single rear remote. Rancho skid-plate.
    17" x 9" M/T Classic Lock Wheels, 35" BFG A/T or M/T tires
    4.10 PercisionGears w/factory locker, T/A Performance rear-end cover
    Banks CAI intake, ported throttlebody, JBA coated headers, over-sized Magnaflow cats, Magnaflow cat back exhaust, Diablo tuned
    B&M aluminum deep transmission pan
    Warn brush guard w/Warn 9.5 XP winch, PIAA bulbs, Line-X bedliner, AWS Black tool chest, Extang tonneau cover
    Weather Tech floor mats
    Cover-Craft seat covers
    Dash mat cover
    Formula One window tint
    One black Lab in rear seat.

  3. #3


    It wouldn't be the first time they messed with my head!

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