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secondary air filter

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Lentsnh, Jan 21, 2009.

  1. Jan 21, 2009 at 3:44 PM
    #1
    Lentsnh

    Lentsnh [OP] Well-Known Member

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    Im about to do it. and i know that there is a mod & tutorial on it but thats for the 2.4L. any tips on the secondary filter for the V6 4.0L?
     
  2. Jan 21, 2009 at 3:49 PM
    #2
    T@co_Pr3runn3r

    T@co_Pr3runn3r XXXXXXXXXXXXXXXXXXX

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    Yeah, it's in here somewhere, just did it yesterday. Lemme see if I can find it. It's in a thread with a list of cheap mods.............Here is the whole cheap free mod list with links to how-to.

    http://www.tacomaworld.com/forum/technical-chat/4838-cheap-free-mods.html


    edit - the mod is better for 2.7 but is same procedure for 4.0. The filter is in the lid of the air box. Just less noticeable results. Check out the how-to in the list, it has more specifics about the benefits for 4s vs 6s.
     
  3. Jan 21, 2009 at 5:01 PM
    #3
    red06toy

    red06toy Well-Known Member

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    2.5 toytec, bilstein 5100 black grille, black lights, partially shaved decals remaning ones black, , trd fj wheels, sirius, Ipod interface, pre-filter delete
    Its real easy. take off your intake, pull off the airfilter. The pre-filter is held in by 6 or 8 plastic rivets. I used a sharp wood chisel to cut off the heads. make sure you pick up or vac up the plastic that land in the tube. the pre-filter comes right off. I kept mine in case i decide to put it back or sell it.
     
  4. Jan 21, 2009 at 5:47 PM
    #4
    Lentsnh

    Lentsnh [OP] Well-Known Member

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    oh ok thanks its like RIGHT behind the air filter
     
  5. Jan 21, 2009 at 10:27 PM
    #5
    Bearskill

    Bearskill Well-Known Member

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    So let me get this straight. The secondary air filter is for emisions? Not really for filtering intake air? For the guys that did it to a 4L V6, did you notice that big o diff? Is it worth doing?
     
  6. Jan 21, 2009 at 11:31 PM
    #6
    genxer36

    genxer36 Lord of Tomfoolery

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    Tow package, XM Satellite radio, K & N Air filter, & Channel Vent Visors
    I didn't notice any difference.
     
  7. Jan 22, 2009 at 4:09 AM
    #7
    Burns

    Burns Well-Known Member

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    Its been dyno tested by Gadget @ URD and you gain nothing by removing the secondary filter. I did however remove mine on my now traded in X-Runner but I have left it in on my current 08 DC 4x4.
     
  8. Jan 22, 2009 at 3:22 PM
    #8
    WilsonTheDog

    WilsonTheDog Kylie's dad

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    Yes, according to Gadget, you gain nothing. I have not, however, seen a dyno other than Gadgets.

    I will say that I saw a significant difference off the line. No, it isn't HP, I guess throttle response? It definitely is not as sluggish afterwards as it once was.
     
  9. Jan 22, 2009 at 8:23 PM
    #9
    Lentsnh

    Lentsnh [OP] Well-Known Member

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    I think it would make a bigger difference if you had a CAI partnering with it
     
  10. Jan 22, 2009 at 10:57 PM
    #10
    jefferson

    jefferson needs to stop cruising Buy/Sell/Trade....

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    toyota brand hitch and uhaul wiring harness, fog lamps on anytime, bed lamps, map lights on with dome, day time running lamps, remove secondary air filter, painted bumper grill, Double Din touch screen stereo, Sockmonkey custom SR5 decal, door & seatbelt bells disabled, painted engine cover, installed compass/temperature overhead console, failed mod: passenger side auto down window switches, weathertech front mats, RedLine hood struts, Cheap Beep piezo buzzer locking beep, 5100s in the front set at 2.5, 5100s in the rear, AAL, hitch safe, revenge fab sliders, bed bar, prerunner light, cb wired
    i used a flat blade screwdriver and just grabbed at it for a bit. Broke right off. Ive noticed absolutely no difference, but it is quite thick.. so it missing im SURE lets the engine breathe a better.. and you can add it to your Vehicle Information, "Modification" section.. haha
     
  11. Jan 23, 2009 at 1:03 AM
    #11
    ERdept

    ERdept Well-Known Member

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    I used a dremel tool and drill bit.

    But this method has its disadvantages. It created a lot of fine shavings.

    I don't know for sure, but I think that I vacuumed all of them out then wiped down the interior.

    It seems more responsive. But especially more since putting on the K&N intake, muffler, and removing the secondary I notice a big difference, according to the butt dyno.
     
  12. Jan 23, 2009 at 6:09 AM
    #12
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    I removed mine, and there was no difference in performance or fuel econ. I took some measurements, and given the surface area of the filter, it has no restriction on the engine. I kinda regret doing it, as, if anything, its a second barrier to protect the engine from getting crap in it.
     
  13. Jan 23, 2009 at 6:11 AM
    #13
    T@co_Pr3runn3r

    T@co_Pr3runn3r XXXXXXXXXXXXXXXXXXX

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    Trade with someone who has 4 cyl & hasn't done it yet...........
     
  14. Jan 23, 2009 at 9:26 AM
    #14
    TacoNut

    TacoNut IgnoringChrisWatchingEdLi veVicariouslyThroughMJP2

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    No difference at all
     
  15. Jan 23, 2009 at 9:30 AM
    #15
    Ghost96Romeo

    Ghost96Romeo What is the Search Tab for????

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    I thought my truck idled smoother, and going up hills with the cruise control on it doesn't downshift as much, but other than that nothing. I could just be imagining it.
     
  16. Jan 23, 2009 at 9:39 AM
    #16
    jefferson

    jefferson needs to stop cruising Buy/Sell/Trade....

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    toyota brand hitch and uhaul wiring harness, fog lamps on anytime, bed lamps, map lights on with dome, day time running lamps, remove secondary air filter, painted bumper grill, Double Din touch screen stereo, Sockmonkey custom SR5 decal, door & seatbelt bells disabled, painted engine cover, installed compass/temperature overhead console, failed mod: passenger side auto down window switches, weathertech front mats, RedLine hood struts, Cheap Beep piezo buzzer locking beep, 5100s in the front set at 2.5, 5100s in the rear, AAL, hitch safe, revenge fab sliders, bed bar, prerunner light, cb wired
    well.. toyota did put it there for a reason
     
  17. Jan 23, 2009 at 9:57 AM
    #17
    T@co_Pr3runn3r

    T@co_Pr3runn3r XXXXXXXXXXXXXXXXXXX

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    The reasons car companies do things are generally not geared towards the consumer's benefit more often than not-mileagewise, performance wise or longevitywise. Not always the gospel end all answer just because they do something. They do things to sell cars & make most money possible off you & me. In this case what, to keep some smell from coming from the throttle body? Haven't smelled anything different. They don't trust the primary filter to do it's job? Then spend a little profit & put a better one in it to begin with.
     
  18. Jan 23, 2009 at 10:36 AM
    #18
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Yeah, I know. I did it just to see for myself. Gaget found no difference, but others claimed they did, so I had to give it a try.
     
  19. Jan 23, 2009 at 12:42 PM
    #19
    m_taker1

    m_taker1 Well-Known Member

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    I noticed some better throttle response, i used a pair of wire cutters/dikes to cut the head off and then just cleaned it out real good.
     
  20. Jan 23, 2009 at 1:59 PM
    #20
    Snyperx

    Snyperx Seniore Marcos

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    I haven't seen a real difference except in maybe a bit better throttle response. I am still going through my first tank of gas with the filter out. Not expecting a change there.
     
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