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PCV Valve Replacement Instructions-4.7L

Discussion in '1st Gen Tundras (2000-2006)' started by FirstGenVol, Jan 14, 2019.

  1. Jul 24, 2019 at 5:26 PM
    #31
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    Here is a look into a 2002 PCV grommet hole after about 10k miles with new valve gaskets service. Prior, this hole was gunked before changing the PCV valve last year. The new valve seems to be working fine, but you can see some cack droppings starting to develop down inside the cover hole.

    upload_2019-7-24_20-24-24.jpg
     
    Sangre Kid likes this.
  2. Oct 9, 2019 at 4:33 PM
    #32
    FrenchToasty

    FrenchToasty Desert rat

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    Are most people replacing because this part fails and throws a code, or age, or if your pulling stuff near it it’s a good idea to just change it out? Thanks
     
  3. Oct 9, 2019 at 4:36 PM
    #33
    FirstGenVol

    FirstGenVol [OP] I complain about my mods

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    I've never actually heard of 1 failing. I replaced mine because it was 17 years old and it's a $10 part. It was pretty nasty too.
     
  4. Oct 9, 2019 at 4:45 PM
    #34
    FrenchToasty

    FrenchToasty Desert rat

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    Oh ok. Has anyone here ran catch cans? Cats on the 4runner page were all about them, keeps stuff cleaner, but also lots of nay sayers. Mostly boosted engines that ran them but the theory seems sound.
     
  5. Oct 9, 2019 at 4:57 PM
    #35
    Filthyphil

    Filthyphil New Member

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    I had one on my old 24 valve Cummins, I liked it.
     
    FrenchToasty likes this.
  6. Oct 16, 2019 at 1:08 PM
    #36
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    Mine (PCV) was all gunked up when I changed it during the valve cover gaskets replacement at 150k miles. Probably had been clogged since 80k miles when I noticed a black soot ring around the PCV area. Didn’t pay much attention to it and drove it another 70k miles which probably lead to early failure of the VCGaskets/tubes.

    Here is a good link which explains things better.

    http://www.agcoauto.com/content/news/p2_articleid/197
     
    FrenchToasty likes this.
  7. Nov 2, 2019 at 12:40 PM
    #37
    batsquatch

    batsquatch New Member

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    Did this today @ 131k. Was unsure when last replaced but valve didn’t look too bad. Grommet was pretty toasted. Came out in 3 pieces and all accounted for. Truck seems to idle a hair smoother, could be my imagination.
     
    Filthyphil likes this.
  8. Nov 2, 2019 at 2:41 PM
    #38
    FrenchToasty

    FrenchToasty Desert rat

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    DC3A2B6E-FB78-4724-95BF-4B6AFD103567.jpg I did mine today while swapping injectors, it was pretty nasty.
     
  9. Feb 7, 2020 at 3:44 PM
    #39
    FirstGenVol

    FirstGenVol [OP] I complain about my mods

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    Been studying the PCV more. It's actually more important than I realized. I want to replace the PCV on my wife's Rav4 but it's a hell of a lot harder to reach. I couldnt even find it initially and had to watch a YouTube video. Bummed that it won't be easy.
     
  10. Feb 7, 2020 at 3:57 PM
    #40
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    You got this.

    I wish I had replaced mine at the 80k miles mark when I noticed the black soot ring around it. Wonder what is that? Told myself: Myself its a Toyota Tundra and it will last forever.

    Probs why my cam and crank seals have light seeps and why my VC gaskets failed at 130k.
     
    speedtre likes this.
  11. Feb 25, 2020 at 5:07 PM
    #41
    Filthyphil

    Filthyphil New Member

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    Pulled my PCV out tonight with plans of getting a new one at the dealer tomorrow when I go to town.

    Pulled the PCV right out no problems at all “was expecting the worst.” PCV was in good condition could hear the valve sliding up and down and could blow easily through it, and there was minimal gunk buildup. I’ve decided to clean it well with mass airflow cleaner because it’s safe on plastic and just check it every 6 months or so.
     

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