1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Has anyone ever had a MAF damaged by oiled filter?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by carmellocafe, May 25, 2009.

  1. May 25, 2009 at 8:13 PM
    #1
    carmellocafe

    carmellocafe [OP] Begin With The End In Mind.

    Joined:
    May 15, 2009
    Member:
    #17267
    Messages:
    2,266
    Gender:
    Male
    First Name:
    KEVIN
    N. California
    Vehicle:
    2014 TRD OR Access cab longbed
    I see a lot of posts claiming that K&N filters shouldn't be used because the oil can pass through to the MAF. THIS IS SUCH A JOKE! You'd have to have ethanol for brains to oil your filter so much that the oil is being sucked off the filter medium. Give me a break--It can't happen. In fact on K&N's website there is even studies sited where they have actually dipped MAF sensors in the oil used in their mediums and they work perfectly fine even then. Has anyone ever really had a MAF sensor damaged by an oiled air filter??
     
  2. May 25, 2009 at 8:16 PM
    #2
    Ridgerunner

    Ridgerunner Well-Known Member

    Joined:
    Mar 14, 2008
    Member:
    #5269
    Messages:
    3,621
    Gender:
    Male
    First Name:
    Frank
    San Francisco
    Vehicle:
    2001 prerunner doublecab limited
    2001 with; cat-back twin exhaust,elbow mod, Westin bullbar with Hella550's, Snugtop XTR camper shell, TRD off-road 2x4-black beauty.
  3. May 25, 2009 at 8:25 PM
    #3
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,153
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Back in the day, I read alot of posts on TTORA of people haveing problems with their MAF when useing a K&N filter. I ran a K&N doing some tests, and never had an issue with the MAF, but the filter let alot of dirt into the engine.
     
  4. May 25, 2009 at 8:26 PM
    #4
    DanGer

    DanGer Avatar approved by 98tacomav6

    Joined:
    Jun 7, 2008
    Member:
    #7155
    Messages:
    5,494
    Gender:
    Male
    Northern Virginia & Blacksburg
    Vehicle:
    07 Base 4Cyl 4x4 Manual
    White Head Light mod, White shorty antennae, Doug Thorley Long Tube headers, AFE Drop in air filter, Secondary Air Filter Removed,
    x2 I have seen a lot of post floating around about it. Luckily for me i realized it does a terrible job at filtering and won't let one anywhere near my truck
     
  5. May 25, 2009 at 8:27 PM
    #5
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,153
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    :proposetoast:
     
  6. May 25, 2009 at 8:30 PM
    #6
    DanGer

    DanGer Avatar approved by 98tacomav6

    Joined:
    Jun 7, 2008
    Member:
    #7155
    Messages:
    5,494
    Gender:
    Male
    Northern Virginia & Blacksburg
    Vehicle:
    07 Base 4Cyl 4x4 Manual
    White Head Light mod, White shorty antennae, Doug Thorley Long Tube headers, AFE Drop in air filter, Secondary Air Filter Removed,
    after reading your and others warnings I opened up my friends sentra's airbox and found the two side of the filter only slightly less dirty. I plan to check my friend suburu tomorrow and all these are on road only.
     
  7. May 26, 2009 at 3:30 AM
    #7
    Janster

    Janster Old & Forgetful

    Joined:
    Mar 25, 2007
    Member:
    #1138
    Messages:
    14,255
    Gender:
    Female
    First Name:
    Jandy
    Lancaster, PA
    Vehicle:
    2016 GMC Canyon SLT w/ LineX and....
    If an oiled filter is oiled too much (after being cleaned), the oil can get into the engine and on the MAF. If an oiled filter is not cleaned regularly enough it can allow dust through. If any filter isn't seated properly in the airbox can let dust through.

    I've had K&N's for years and never had a problem with 'em.
     
  8. May 26, 2009 at 4:41 AM
    #8
    Ridgerunner

    Ridgerunner Well-Known Member

    Joined:
    Mar 14, 2008
    Member:
    #5269
    Messages:
    3,621
    Gender:
    Male
    First Name:
    Frank
    San Francisco
    Vehicle:
    2001 prerunner doublecab limited
    2001 with; cat-back twin exhaust,elbow mod, Westin bullbar with Hella550's, Snugtop XTR camper shell, TRD off-road 2x4-black beauty.
    Yeah but Janster-do they really make a difference for you? I have one too but it sits in a box on the toolbench because I felt it did nothing for my truck. My truck runs better with a stock filter-go figure:rolleyes:
     
  9. May 26, 2009 at 4:49 AM
    #9
    Kyouto42

    Kyouto42 Iron Beard

    Joined:
    Aug 18, 2008
    Member:
    #8614
    Messages:
    9,243
    Gender:
    Male
    First Name:
    Jake
    Ahwatukee, AZ
    Vehicle:
    BSP '10 4x4 TRD Off-Road DC
    See build thread in signature
    Uh.... I live in Arizona as well Chris... Driven through every 'dirt storm' we've had (living in Maricopa City and driving into Phoenix it's the full brunt of it). I clean my filter every 5k (which ends up being like every 2-3 months) and I've yet to see ANY dirt get past the filter. Or for that matter any oil lying around, and I'm pretty generous with the spray. I have to do another oil change this weekend (coming up on the 20k), I'll re-check and look harder and report out if I find anything... I did go out to Butcher Jones with the group doing some decent speed out in the washes and such so I picked up a fair amount of dirt in the air.

    Also, every car I've ever seen/owned with a k&n never had MAF problems. 3000GT, cavaliers, ranger, G35.
     
  10. May 26, 2009 at 4:49 AM
    #10
    T@co_Pr3runn3r

    T@co_Pr3runn3r XXXXXXXXXXXXXXXXXXX

    Joined:
    Jan 20, 2009
    Member:
    #12767
    Messages:
    11,923
    Gender:
    Male
    <----------------->
    Vehicle:
    08 RC Prerunner SR5
    OK, so who's got what badness about the drop-in afe dry flow?
     
  11. May 26, 2009 at 6:10 AM
    #11
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,153
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    What do your oil samples say? Not only did I have visible dust on my intake With 1 filter I tested, but My oil samples showed silica levels that were off the chart. I tried 4 differetn K&N type filters, and all gave high silica levels in the oil, thought 3 of them (Airaid, AFE, and TRD) didnt show dirt in the intake track. All were seated propperly in the air box.
     
  12. May 26, 2009 at 6:30 AM
    #12
    Kyouto42

    Kyouto42 Iron Beard

    Joined:
    Aug 18, 2008
    Member:
    #8614
    Messages:
    9,243
    Gender:
    Male
    First Name:
    Jake
    Ahwatukee, AZ
    Vehicle:
    BSP '10 4x4 TRD Off-Road DC
    See build thread in signature
    I haven't run any tests with blackstone but you've peaked my interest. I'll try to get a sample sent off this week for it.
     
  13. May 26, 2009 at 6:43 AM
    #13
    T@co_Pr3runn3r

    T@co_Pr3runn3r XXXXXXXXXXXXXXXXXXX

    Joined:
    Jan 20, 2009
    Member:
    #12767
    Messages:
    11,923
    Gender:
    Male
    <----------------->
    Vehicle:
    08 RC Prerunner SR5
    .....and the oem? High silica levels? Maybe if 2nd charcoal filter removed?
     
  14. May 26, 2009 at 7:32 AM
    #14
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,153
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    When I switched to the OEM Toyota air filter, my silica levels were "trace" amounts, or less. Removing the charcoal filter made no difference on the 4.0, yet some people "Claim" it made a difference on the 2.7.
     
  15. May 26, 2009 at 7:37 AM
    #15
    DanGer

    DanGer Avatar approved by 98tacomav6

    Joined:
    Jun 7, 2008
    Member:
    #7155
    Messages:
    5,494
    Gender:
    Male
    Northern Virginia & Blacksburg
    Vehicle:
    07 Base 4Cyl 4x4 Manual
    White Head Light mod, White shorty antennae, Doug Thorley Long Tube headers, AFE Drop in air filter, Secondary Air Filter Removed,

    :D
     
  16. May 26, 2009 at 7:58 AM
    #16
    Good351

    Good351 Well-Known Member

    Joined:
    Feb 25, 2009
    Member:
    #14055
    Messages:
    437
    Gender:
    Male
    Ames, IA
    Vehicle:
    03 4Runner V8
    Not damaged just dirty.

    I had a terrible time keeping the MAF sensor clean on my 1st gen taco. With a K&N and with a toyota filter the MAF kept getting oil on it. I think it was from the crank case vent or one of those mysterious hoses... Anyway I had to clean the MAF sensor twice a year otherwise the engine ran like crap.

    Oil and dirt build up on the thermopile or thermocouple (which ever they are using) would yeild a poor/slow measurement of the incoming air temp. Then you get poor air/fuel mixture and terrible throtle response. I'm in micro meteorology research so I recognized the sensors...
     
  17. May 26, 2009 at 8:56 AM
    #17
    T@co_Pr3runn3r

    T@co_Pr3runn3r XXXXXXXXXXXXXXXXXXX

    Joined:
    Jan 20, 2009
    Member:
    #12767
    Messages:
    11,923
    Gender:
    Male
    <----------------->
    Vehicle:
    08 RC Prerunner SR5
    So you're saying any other filter increased the silica levels vs. the oem? I'm assuming this means more microscopic dirt particles in the oil?
     
  18. May 26, 2009 at 9:01 AM
    #18
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,153
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    No. Only the oiled Gauze filters I have tested. The Amsoil filter I tested (a foam oiled filter), didnt show significant increase in silica levels, but it DID have an increase in vacuum in the air box, which is indicative of more restriction. FWIW, Im in the process of testing a Fram filter (actually awaiting lab results), and I will update when those come in.
     
  19. May 26, 2009 at 9:31 AM
    #19
    T@co_Pr3runn3r

    T@co_Pr3runn3r XXXXXXXXXXXXXXXXXXX

    Joined:
    Jan 20, 2009
    Member:
    #12767
    Messages:
    11,923
    Gender:
    Male
    <----------------->
    Vehicle:
    08 RC Prerunner SR5
    Interested in afe dry flo drop-in............
     
  20. May 26, 2009 at 9:32 AM
    #20
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,153
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    I havent tested that, and being still out of work, most of my testing is put on hold until work picks up. :(
     
To Top