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

Smelling coolant on a 2012..

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Hiker, Jun 8, 2012.

  1. Jun 8, 2012 at 6:43 PM
    #1
    Hiker

    Hiker [OP] Well-Known Member

    Joined:
    Apr 26, 2010
    Member:
    #36020
    Messages:
    239
    Gender:
    Male
    HotZona
    I've had my 2012 Tacoma now for 5 months and since the first month I've smelled coolant coming from the front grill. I've taken it in twice now and nothing can be found. They did replace the cap....nothing. There's no leaks and the coolant in the over flow tank is always at the same level. When I get home my whole garage smells like coolant, but no leaks. The guy at the carwash said I must have a leak cause it smells so bad. I'm taking it in again next week..... What a PITA...
     
  2. Jun 8, 2012 at 6:55 PM
    #2
    Beach Croc

    Beach Croc Member

    Joined:
    Aug 13, 2009
    Member:
    #21123
    Messages:
    5
    Gender:
    Male
    Virginia Beach
    Vehicle:
    Debadged 4x4 TRD On Road
    Truxedo LoPro Tonneau. Home made bedslide. Removed rear seats & added homemade carpeted 60/40 shelf.
    I have same odor with my V6 2009. It is most likely frm the venting of the overfow tank. Had it now for three years and no coolant lose but smell evaporating antifreeze every now and again.
     
  3. Jun 8, 2012 at 9:06 PM
    #3
    Utard

    Utard Well-Known Member

    Joined:
    Nov 5, 2011
    Member:
    #66532
    Messages:
    3,131
    Gender:
    Male
    First Name:
    Mark
    Nyssa, Oregon
    Vehicle:
    2012 DC LB 4WD TRD SPORT NAVI
    ------------------------------------------------------------ Stabilus.EZDown.Tailgate http://www.ezdown.com/home.php ----------------------------------------------- Tekonsha.Primus.IQ.Trailer.brake http://www.tekonsha.com/content/default.aspx---------------------------------------------------------------- Leer 180 CC http://www.leer.com/Truck-Caps#------------------------------------------------ Firestone Air Rite Air Bags--------------------------------------Kargomaster Rack
    Look for a white residue. If its on a hot part of the engine it can evaporate before you see a drip.
     
  4. Jun 8, 2012 at 9:24 PM
    #4
    Alloutdrs1

    Alloutdrs1 Well-Known Member

    Joined:
    Feb 28, 2012
    Member:
    #73780
    Messages:
    1,061
    Gender:
    Male
    First Name:
    Andrew
    Virginia Beach, VA
    Vehicle:
    12' Mag gray Doublecab 4x4
    Distinct Offroad light bar, Rigid E-series and amber duallys, Leer 100xq, Oem roof rack, Oem bed mat, Bullculla trailer plug relocate bracket, Rear diff vent mod, front mud flap chop, Color matched Grille w/Andres devil horns, Wet okoles and weathertechs
    Possible your mistaking the coolant smell for the smell of a new engine that is breaking in?
     
  5. Jun 9, 2012 at 3:10 PM
    #5
    Hiker

    Hiker [OP] Well-Known Member

    Joined:
    Apr 26, 2010
    Member:
    #36020
    Messages:
    239
    Gender:
    Male
    HotZona
    No...It's coolant and the smell is coming from the driver side of the engine bay. The overflow bottle is on the left side. If you stick your nose on the driver side of the grill you can really smell it, not so much for the pass side...

    I'm taking it back for the third time next week.
     
  6. Jun 9, 2012 at 6:09 PM
    #6
    Ga tacoguy

    Ga tacoguy Well-Known Member

    Joined:
    Mar 2, 2012
    Member:
    #74020
    Messages:
    311
    Gender:
    Male
    First Name:
    Rudy
    Augusta Ga.
    Vehicle:
    Extended cab Base model 4 cyl
    Tailgate mod, horn mod,storage door mod
    :) From reading your posts, if you such a strong smell of antifreeze, you must have some sign of a leakage. Do you smell antifreeze inside you cab with the windows up ? You should have some liquid on the ground for such a strong smell. I am not saying you are wrong, but a smell of any product, be it Oil or Gasoline or Antifreeze is a sign of a problem.
    When you do make a trip to the dealer, have them warm the engine to operating temp. , turn off the Taco, then apply a pressure tester to the radiator and look for leaks and see if the gauge loses pressure. To me, if you smell it that strong up front, one of the tanks of your radiator may be failing.
    Good Luck.
     
  7. Jun 9, 2012 at 10:08 PM
    #7
    landphil

    landphil Wishin' I was Fishin'

    Joined:
    Mar 3, 2011
    Member:
    #52290
    Messages:
    2,766
    Gender:
    Male
    BC, Canada
    Vehicle:
    RIP 2006 Tacoma DCSB
    Tundra 5.7 mod
    If you can, leave the truck overnight and have them pressure test it cold as well, as most leaks actually turn up when cold, and stop leaking when warm. It can go the opposite way as mentioned, but bottom line, any leak should show up if is pressure tested both cold and hot.

    Another thought, do you know what an overcharging battery smells like? It's the location you describe, and can create an awefull smell. Either a faulty voltage regulator or a shorted cell can cause it.
     
  8. Jul 26, 2012 at 10:15 PM
    #8
    aportis72

    aportis72 Well-Known Member

    Joined:
    Dec 29, 2011
    Member:
    #69577
    Messages:
    290
    Gender:
    Male
    First Name:
    Austin
    Supercharger
    I have this exact same thing on my 2012. Did you figure it out. I would like to figure mine out too!
     
  9. Jul 26, 2012 at 10:30 PM
    #9
    wrxRome

    wrxRome Houston's Swamp Rat

    Joined:
    Aug 25, 2011
    Member:
    #62338
    Messages:
    5,854
    Gender:
    Male
    First Name:
    Brandon
    Covington, LA/Friendswood,TX
    Vehicle:
    06 SWB 4x4 trd off road
    i say this, this happened on my very first truck (1995 f-150) the timing gasket was old and only leaked when it was cold, when it warmed up, i went away because heat expands metal so it would close back up.


    but this would be a good place to start, leave at the dealer overnight or drop it off EARLY in the morning when they first open and ask them to pressure test it later in the day after your truck cooled off
     
  10. Jul 27, 2012 at 2:00 AM
    #10
    aaronbuell

    aaronbuell Well-Known Member

    Joined:
    Nov 30, 2011
    Member:
    #67967
    Messages:
    305
    Gender:
    Male
    First Name:
    aaron
    windsor NY
    Vehicle:
    09 TRD/OR Access Cab V6 debadged
    Fog-light anytime mod, ,black grill,URD short throw,TRD decals removed ,debadged,black rear bumper, homemade tire carrier,TreadWright tires,Evo mod,removed rear headrests and seats,ABS kill switch mod,black center caps,Clarion CX501 head unit,Relentless hood brackets with floodlights.
    My 09 has that smell its been doing it since the day I got it new in oct. of 2008 took it in twice and they said they find nothing wrong with it. My coolant level has never dropped. The funny thing is my dads 2006 Colorado does the same thing.
     
  11. Jul 27, 2012 at 3:16 AM
    #11
    Raylo

    Raylo Well-Known Member

    Joined:
    Nov 19, 2008
    Member:
    #10878
    Messages:
    537
    Gender:
    Male
    MD, USA
    Vehicle:
    2009 4x4 Access Cab, TRD Sport
    Same here with my 2009. I noticed this very early on and watched the reservoir level and water pump shaft closely. Was worried about it esp seeing the high water pump failure rates on some other Toyota models (GF's 2009 Camry wp died at 22k miles). Also thought about it being an intake or head gasket that would be harder to diagnose. But I have never had to add any coolant so it isn't leaking. Just get the smell once in awhile.

     
  12. Jul 27, 2012 at 3:30 AM
    #12
    coffeesnob

    coffeesnob Well-Known Member

    Joined:
    Feb 7, 2010
    Member:
    #30892
    Messages:
    8,811
    Gender:
    Male
    VA
    Vehicle:
    2010 access 4 cyl 2 wd
    Had a bad head gasket on an old van which caused this smell.
     
  13. Jul 27, 2012 at 5:40 AM
    #13
    PSJ

    PSJ Prerunners Work

    Joined:
    Nov 9, 2008
    Member:
    #10620
    Messages:
    1,344
    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
    I use to get that coolent smell, found some residue on the overflow tank line where it connects. Finally realized my radiator was loose, once I tightened it up, no more issues.
     
  14. Jul 27, 2012 at 7:36 AM
    #14
    aficianado

    aficianado Well-Known Member

    Joined:
    Oct 27, 2009
    Member:
    #25015
    Messages:
    6,326
    Gender:
    Male
    bay area, california
    Vehicle:
    2006 access cab. 4x4, TRD-OR
    back to bone stock.
    the dealer didnt pressure test it?

    my wife's car..did this. i must have the nose of a beagle. it was there, i could smell it. nobody else could. drove me crazy. i MADE the dealer pressure test it..we found it. it was a tiny, leak where the thermostat was..the plastic cracked.

    trust your nose.
     
  15. Jul 27, 2012 at 7:41 AM
    #15
    Crom

    Crom Outside

    Joined:
    Jun 22, 2009
    Member:
    #18782
    Messages:
    9,469
    Gender:
    Male
    First Name:
    Nick
    San Diego, CA
    Vehicle:
    2009 4x4 DCSB Camp Supreme
    Millions
    subbed for resolution.
     
  16. Jul 27, 2012 at 8:05 AM
    #16
    brianv3ntura

    brianv3ntura Well-Known Member

    Joined:
    Jul 10, 2012
    Member:
    #82343
    Messages:
    285
    Gender:
    Male
    Jacksonville FL
    Vehicle:
    MGM'12 Taco TRD Sport 4x4 DCLB 4.0L 5spd Auto
    Stock for now.
    In4sub. Going to see I can notice anything with our '12
     
  17. Jul 27, 2012 at 11:11 AM
    #17
    RickG

    RickG It seemed like a good idea at the time...

    Joined:
    Feb 13, 2010
    Member:
    #31287
    Messages:
    362
    Gender:
    Male
    Southern NH
    Vehicle:
    2010 SR5 4x4 Pyrite Mica
    Color matched grille, Access tonneau, OEM Temp/compass, De-badged, OEM hitch, Custom rear storage/dog deck, LED foot well lighting, Illuminated 4x4 switch
    Wife's nearly new Edge smelled of antifreeze w/no visible leaks or loss of coolant. 4 visits to the dealer later it has a new water pump. It doesn't take much at all for you to smell it when it's hot. New parts can fail too.
     
  18. Jul 27, 2012 at 1:07 PM
    #18
    Commanderwiggin

    Commanderwiggin Well-Known Member

    Joined:
    Nov 21, 2011
    Member:
    #67438
    Messages:
    356
    Gender:
    Male
    Calgary
    Vehicle:
    12 Tacoma D/C 4x4 TRD Sport 6MT Supercharged
    I've never noticed this smell with my truck and I'm pretty anal when it comes to noticing new ticks, rattles, smells, etc...

    The only time I've ever smelt anything different was right after my supercharger install I could smell the the rtv sealant/formagasket or w/e as I was breaking it in.

    I just went out for a solid rip and came back and smelled nothing coolant related.

    Dunno, hope you guys figure it out ;)
     
  19. Jul 27, 2012 at 4:47 PM
    #19
    Utard

    Utard Well-Known Member

    Joined:
    Nov 5, 2011
    Member:
    #66532
    Messages:
    3,131
    Gender:
    Male
    First Name:
    Mark
    Nyssa, Oregon
    Vehicle:
    2012 DC LB 4WD TRD SPORT NAVI
    ------------------------------------------------------------ Stabilus.EZDown.Tailgate http://www.ezdown.com/home.php ----------------------------------------------- Tekonsha.Primus.IQ.Trailer.brake http://www.tekonsha.com/content/default.aspx---------------------------------------------------------------- Leer 180 CC http://www.leer.com/Truck-Caps#------------------------------------------------ Firestone Air Rite Air Bags--------------------------------------Kargomaster Rack
    Give the engine a good hose down and cleaning when cold.

    Maybe at the build some coolant got on the exhaust headers and puts off a smell when warmed up?
     
  20. Jul 27, 2012 at 4:48 PM
    #20
    aportis72

    aportis72 Well-Known Member

    Joined:
    Dec 29, 2011
    Member:
    #69577
    Messages:
    290
    Gender:
    Male
    First Name:
    Austin
    Supercharger
    OP any updates? My 2012 only has the smell right after driving. It's gone after a few hours I can care less about the smell just dont want to have a problem.

    Also no visible signs of a leak just the smell only and same spot drivers side up by grill

    Sunday I will go over it with a fine tooth comb and watch my overflow tank like a hawk.
     

Products Discussed in

To Top