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

2.7 Rough idle when in gear...

Discussion in '4 Cylinder' started by Hessian, Dec 27, 2011.

  1. Dec 27, 2011 at 1:23 PM
    #1
    Hessian

    Hessian [OP] New Member

    Joined:
    Dec 27, 2011
    Member:
    #69456
    Messages:
    1
    Gender:
    Male
    DC
    Vehicle:
    Tacoma 4x4
    Hello All,
    My first post here... I bought a used Taco a year ago, been great so far. Recently I;ve noticed a rough idle when stopped (i.e. at stop lights). Drives/accelerates just fine the problem is only when it's in gear and my foot is on the brake.
    If I put it in park at the light, the engine runs normal. Again, I only have this issue when the Truck is in Drive, stopped and my foot's on the brake.
    Any ideas?
    No CEL. I have the base model, so no Tachometer but I can tell/hear the rpms dip when it does this.
    Thanks
    Hessian
     
  2. Jan 8, 2012 at 6:29 AM
    #2
    PSJ

    PSJ Prerunners Work

    Joined:
    Nov 9, 2008
    Member:
    #10620
    Messages:
    1,348
    Gender:
    Male
    Sebastian Inlet
    Vehicle:
    09 Access Cab Prerunner
    Rear Leaf spring TSB, Bilstein 5100's all around w/ front set at 1.75", 265/75R/16 Mickey Thompson Baja STZ's, Trailer hitch w/custom wiring, AFE drop in dry filter, Rear Diff breather mod, Debadged truck, customized stock TRD wheel center caps, added factory fog lights, bed mat, door sills, tinted windows
    Could be many things but I bet if you disconnect the battery, clean out your throttle body and re set the computer it might resolve the issue. I would do this first and go from there. Any service records for PO? How's the tranny fluid look?
     
  3. Jan 16, 2012 at 2:12 PM
    #3
    frog13

    frog13 Well-Known Member

    Joined:
    Jan 26, 2011
    Member:
    #49990
    Messages:
    140
    Gender:
    Male
    What year?....how many miles?.
     
  4. Jan 16, 2012 at 2:12 PM
    #4
    steve o 77

    steve o 77 braaap

    Joined:
    Nov 29, 2009
    Member:
    #26726
    Messages:
    19,903
    Gender:
    Male
    First Name:
    Steven
    In a corn field, OH
    Vehicle:
    2001 4x4 5Spd Xtra Cab V6
    205k+ miles, 265/75/16 BFG A/T's, OME 881's, Wheelers 5 leaf pack, 5100's, Home Made Sliders
    that is normal with small automatics.
     
  5. Feb 1, 2012 at 8:39 AM
    #5
    tan4x4

    tan4x4 Well-Known Member

    Joined:
    Nov 30, 2011
    Member:
    #67982
    Messages:
    1,981
    Gender:
    Male
    First Name:
    Rick
    Folsom, CA
    Vehicle:
    99 Tacoma EC 4x4 2.7L Auto
    Bilsteins, OME 881's, 3-leaf AAL, Detroit TruTrac, 31" tires, Michelin LTX AT2, stock gears, Tranny skidplate, TC skidplate, CBI rear bumper, sliders, UltraGauge, PowerTank, CB
    Bad TPS?
     
  6. Dec 12, 2013 at 3:13 PM
    #6
    2000tacoTRD

    2000tacoTRD Member

    Joined:
    Dec 12, 2013
    Member:
    #118442
    Messages:
    5
    Gender:
    Male
    Delaware
    Vehicle:
    2000 tacoma trd 4x4 2.7l
    Have you fixed it I'm having the same issue
     
  7. Dec 12, 2013 at 3:44 PM
    #7
    DGXR

    DGXR Well-Known Member

    Joined:
    Sep 1, 2009
    Member:
    #22094
    Messages:
    932
    Gender:
    Male
    First Name:
    Friend
    Sacramento, CA
    Vehicle:
    2006 2.7L SR5 2-wheel drive
    aFe Pro Dry air filter, magnetic oil drain plug, synthetic seat covers, steering wheel cover
    This has been discussed before. Assuming no misfire (which would be very obvious), it's normal to have a slight vibration when idling in gear with a 4 cyl automatic... at least with these trucks anyway, by what I've read on here. Mine idles at about 600 rpm in gear and the pulsing of the 4 cyl under light load at low rpm feels rougher than it should be, but actually nothing is wrong. And just like yours, the idle will smooth out if I put the transmission in N or P. It couldn't hurt to clean the TB and MAF, and maybe check the plugs if high mileage. Posting your vehicle information would be helpful (year/mileage). Hope this helps.
     
  8. Dec 12, 2013 at 5:04 PM
    #8
    Fordless

    Fordless Well-Known Member

    Joined:
    May 18, 2013
    Member:
    #104432
    Messages:
    365
    Gender:
    Male
    First Name:
    Jack
    Central Alabama
    Vehicle:
    2015 Tundra DC SR5+
    I took my 2011 to the dealer for a rough idle but they said it was normal. It's annoying but I'm learning to live with it. You guys that still have a throttle cable could probably just up your idle 50-100 rpm and smooth yours out. My 3RZ truck was actually smoother than my 2TR b/c I just upped the idle a little with the idle adjustment screw.
     
  9. Dec 17, 2013 at 9:06 PM
    #9
    gray223

    gray223 Well-Known Member

    Joined:
    Nov 6, 2013
    Member:
    #116062
    Messages:
    945
    Gender:
    Male
    Illinois - Missouri
    Vehicle:
    96 tacoma reg cab 4x4 2.7l
    custom bumper
    My 96 does the same when it hits 750 rpm it shakes.
     
  10. Dec 18, 2013 at 1:55 PM
    #10
    iroh

    iroh Well-Known Member

    Joined:
    Oct 18, 2011
    Member:
    #65439
    Messages:
    1,320
    Gender:
    Male
    michigander
    Vehicle:
    07 AC SR5 2.7 5MT 4x4
    tonneau
    My 07 shakes a bit too. Toyota wants it to idle at 650 rpm when I have it stopped in neutral and that's when it gets rough. Funny part is, if they would have left it at 670 rpm like those first few seconds after it comes down to idle, it would be smooth as glass.
     
  11. Dec 18, 2013 at 3:44 PM
    #11
    Fordless

    Fordless Well-Known Member

    Joined:
    May 18, 2013
    Member:
    #104432
    Messages:
    365
    Gender:
    Male
    First Name:
    Jack
    Central Alabama
    Vehicle:
    2015 Tundra DC SR5+

    What gets me about the whole deal is it sounds like the dealer can not adjust the base idle. You would think it would be no problem with the software they have but apparently this is not the case.
     
  12. Dec 20, 2013 at 11:43 AM
    #12
    BrandonFM

    BrandonFM Member

    Joined:
    Oct 2, 2013
    Member:
    #113720
    Messages:
    12
    Gender:
    Male
    First Name:
    Brandon
    Clovis, CA
    Vehicle:
    2013 4X2 Regular Cab Magnetic Gray Metallic
    Tailgate keeper
    My 2013 4 cyl automatic does the same thing! It gets annoying sometimes!
     
  13. Dec 20, 2013 at 1:17 PM
    #13
    Fenwick1993

    Fenwick1993 Hillbilly

    Joined:
    Sep 1, 2012
    Member:
    #85996
    Messages:
    3,221
    Gender:
    Male
    First Name:
    Fenwick
    Chesapeake, VA
    Vehicle:
    Stonewall Jackson, '96 Xtracab, rebuilt motor
    Full rebuild short of machine work, mean green motherfucker! Lime green block, hand-polished valve cover, and stickers! Too broke for real mods right now. Stonewall is my baby, but he's also a work truck.
    My 96 2.4L does the same thing. Idles at about 600-650 when in drive but sitting stationary. Feels rougher than a V6 would, but I attribute that to it being four cylinders in a line instead of 6 in a V-pattern. So chances are, it's the normal idle/roughness for you, too.
     
  14. Dec 23, 2013 at 12:00 PM
    #14
    Mr. Pick

    Mr. Pick Well-Known Member

    Joined:
    Jun 29, 2012
    Member:
    #81609
    Messages:
    129
    Gender:
    Male
    Middle TN
    Vehicle:
    '12 AC, SR5, 2.7L, Auto
    Yup. My 2012 does it too, as do many 4cyl auto vehicles.
     
To Top