Secondary air pump fix??

Discussion in 'Mechanical' started by tex, Jul 23, 2018.

  1. tex

    tex That's Mr Asshole to you

    Not sure what year Toyota started installing the secondary air pump to help with emission crap but it seems to have a high failure rate.
    When it fails all kinds of codes get thrown and the pump is around $600-$700. Someone makes a bypass kit that @RichardB23 has but I think he still has problems.
    I came across this today from Metal Tech and it implies the high failure rate is from the foam filter breaking down and being sucked into the pump causing it to fail.
    Anyone have thoughts on this filter in the link?
    https://www.metaltech4x4.com/blog/lexus-gx460-secondary-air-intake-pump-mod-the-unimod-/
     
    TacoXpo likes this.
  2. Large

    Large Well-Known Member

    I made a whole thread about this on TW before I was banned. Mine took a shit when one bank of the switching valves got stuck in the open position. I bought the bypass kit from the guy and it worked fine but it made another light on the dash come up (don't remember what it was exactly) until finally I found a pump on ebay for $100 or so and swapped it out. The guy did make another module which made the other dash light go away but not before reaming my ass for $250 or whatever he charged me. He also wouldn't give me any discount if I bought the newer module (even though it costs him probably $10 to make them).

    FWIW I don't think I've seen a failure where the foam filter came apart, it's either one of the banks gets stuck open or they get stuck closed. This is coming from the 2nd gen tacos I've seen with the failures - not a 4R.
     
    TacoXpo likes this.
  3. tex

    tex That's Mr Asshole to you

    Thanks for the info. I know the failure is when it gets stuck open or closed but no idea what causes it. My mom's lexus pump failed around 70K miles while they were out of town but the extended warranty covered that.
    There have been some 4runner failures but the Tacoma appears to have more or at least more post about it.
     
  4. balakay

    balakay She ain't fat, bruh... She just a lil' thick.

    My dads Sequoia failed around 75k. He used the Hewitt bypass kit and no problems since.
     
  5. tex

    tex That's Mr Asshole to you

    Hewitt does not show to have an application for the 5th gen runners.
     
  6. CowboyTaco

    CowboyTaco Well-Known Member

  7. Anathollo

    Anathollo Armorall is my choice of lube Staff Member

    Saw this the other day.

     
  8. Silverback

    Silverback I'm not always a dick. Just kidding, fuck off.

    Never seen that guy but I checked out his videos. LOL
     
    TacoXpo, Anathollo and PSU Taco85 like this.
  9. Anathollo

    Anathollo Armorall is my choice of lube Staff Member

    Yeah he also got banned from Tacomaworld as well in one of his vijayos
     
    Silverback likes this.
  10. Silverback

    Silverback I'm not always a dick. Just kidding, fuck off.

     
    tx_shooter likes this.
  11. CowboyTaco

    CowboyTaco Well-Known Member

    Banned from TW and hates AllPro....

    Sean might be looking this guy up to see if they were separated at birth.
     
  12. Silverback

    Silverback I'm not always a dick. Just kidding, fuck off.

    LOL
     
  13. tx_shooter

    tx_shooter Looking for my missing spare time Staff Member

    Wonder if that sticker is still on Sean's rig....
     
  14. Silverback

    Silverback I'm not always a dick. Just kidding, fuck off.

    Oh hell no
     
  15. Silverback

    Silverback I'm not always a dick. Just kidding, fuck off.

    Sad part is that he wants to go back.
     
  16. Mauzer

    Mauzer Pitter Patter. Lets Get at Er

    Probably feels at home with those douchecanoes...he does have a UT sticker on his truck lol
     
  17. tex

    tex That's Mr Asshole to you

    I'm betting he wants to back to sell stickers and get you tube followers.
     
    Anathollo likes this.
  18. Anathollo

    Anathollo Armorall is my choice of lube Staff Member

    Basically what he was doing. Not that you can make a lot of money from YouTube anymore. I think he's starting his own Tacoma forum now.
     
  19. tex

    tex That's Mr Asshole to you

    Someone should invite him over here.
     
  20. unevolved

    unevolved Well-Known Member

    I realize this isn't helpful at all, but just throwing in my two cents- I installed the Hewitt kit once my pump started sounding like a blow drier on cold starts, and haven't had a problem since. 4th gen 2UZ-FE.
     
    Anathollo likes this.

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