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

locating exhaust leak

Discussion in 'Technical Chat' started by dustinclm, Mar 1, 2011.

  1. Mar 1, 2011 at 9:52 PM
    #1
    dustinclm

    dustinclm [OP] Well-Known Member

    Joined:
    Apr 4, 2010
    Member:
    #34553
    Messages:
    500
    Gender:
    Male
    Thibodaux, La
    Vehicle:
    2012 Super White DC 4x4 V6
    Bilstein 5100 set at .85" WeatherTech Floor Mats
    so i have this elusive exhaust leak and belive me i have check everywhere more than one and had a muffler shop look for it and i dont know what else to do, so i got to thinking, could i blow some smoke or fog into the tail pipe and see if it leaks anywhere? or could that mess up sensors or something?
    i just dont know how else to go about finding the leak because its really annoying
     
  2. Mar 2, 2011 at 2:26 AM
    #2
    2TRunner

    2TRunner Don't give up here just yet

    Joined:
    Jul 30, 2010
    Member:
    #40980
    Messages:
    3,001
    Gender:
    Male
    First Name:
    Chris
    Around To Many People
    Vehicle:
    1, 2, 3, 4, 5 Lugs
    Brute Force Bumpers: rear & custom front tube, Saw-A-Way Racerunner 2.5 Coilovers with Total Chaos UCAs. Icon AAL.
    If you were able to find some kind of smoke machine, you'd be alright and don't need to worry about damamge. Smoke gets pumped into EVAP lines and Intakes all the time.
     
  3. Mar 2, 2011 at 2:34 AM
    #3
    Fennywald

    Fennywald Betty Blue

    Joined:
    Nov 18, 2010
    Member:
    #46350
    Messages:
    572
    Gender:
    Male
    First Name:
    Matt
    Virginia Beach, VA
    Vehicle:
    SR5 Tundra 4X4
    have you checked all the bolts on the exhaust? my sentra had an exhaust leak that i could smell in the car and sound god awful loud and it turned out to be a missing bolt where the catback connected to the cat.
     
  4. Mar 2, 2011 at 6:16 AM
    #4
    dustinclm

    dustinclm [OP] Well-Known Member

    Joined:
    Apr 4, 2010
    Member:
    #34553
    Messages:
    500
    Gender:
    Male
    Thibodaux, La
    Vehicle:
    2012 Super White DC 4x4 V6
    Bilstein 5100 set at .85" WeatherTech Floor Mats
    Fennywald: yes all bolts are accounted for and connected properly

    wolfpack5150: did you smoke the maxima yourself? if so with what?

    im thinking it is leaking from somewhere that is in a tight spot if no one has found it yet so i may just have to take the entire system off and using soap/water/ and compressed air but i dont really feel like taking the manifold off because im sure the nuts are rusted or bound to the bolts from all the heat and mud

    i may take off my manifold heat shield today and make a nother inspection but im out of ideas on how to get a good look without disconnecting anything
     
  5. Mar 2, 2011 at 6:23 AM
    #5
    Fennywald

    Fennywald Betty Blue

    Joined:
    Nov 18, 2010
    Member:
    #46350
    Messages:
    572
    Gender:
    Male
    First Name:
    Matt
    Virginia Beach, VA
    Vehicle:
    SR5 Tundra 4X4
    dang, to bad it wasn't an easy fix like mine. hope all goes well trying to find it!
     
  6. Mar 2, 2011 at 6:34 AM
    #6
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

    Joined:
    Dec 18, 2008
    Member:
    #11714
    Messages:
    49,823
    Gender:
    Male
    First Name:
    Ben
    Beech Creek
    Vehicle:
    05 Tundra SR5 (+250k AND COUNTING), 88 SR5 PU (SOLD), 98 TRD OR (CRUSHED)
    5100's all on fours
    A manifold leak will sound like a valve tick.
     
  7. Mar 2, 2011 at 6:45 AM
    #7
    Texoma

    Texoma Well-Known Member

    Joined:
    Feb 1, 2011
    Member:
    #50374
    Messages:
    5,418
    Gender:
    Male
    First Name:
    Chris(Topher)
    Lago Vista, TX
    Vehicle:
    10 Taco 4x4
    Poweraid TB spacer, a bunch a cool stickers, a bada ass MetalMiller Tx Longhorns grill emblem painted Hemi Orange, JBA 2035s headers and dey are perty, Diff breather mod, Red LED interior lights, Fancy head unit that plays ipod n movies, Also DIY install factory stuff like, factory cruise control, factory intermittent wipers, OME nitro struts with 886x springs and toy tec top plate, LR UCA's for better alignmnet and dey beefier too, Old Man Emu Dakar leaf springs in da rear with the gear, U bolt flipper, 5 factory 16" steels wit Pep Boys special Dakota Definity MT's in 285/75/16, some bad ass weather tech floor liners so I don't muck up my interior, an ATO shackle flipper for mo travel in da rear wit the gear, also super shiny Fox 2.0 shocks back there too, all sorts of steal armor for bouncing off of the rocks like demello sliders, AP front skid, trans skid, n transfer skid, demello gas tank skid, and a tough as nails ARB bumper with warn 8k winch, I'm sure there's more but it's alre
    You can get a smoke machine from a haloween store or party store, maybe even wally mart or target. I always found exhaust leaks by following the sound of the leak to the area then feeling around the pipes to feel where it was coming out of. If you just smell it inside the car make sure the tailpipe isn't trapping exhaust underneath your car by not extruding far enough out. Oh and you can also use the smoke machine to find vacuum leaks too.
     
  8. Mar 2, 2011 at 7:01 AM
    #8
    Lurkin

    Lurkin Well-Known Member

    Joined:
    May 21, 2009
    Member:
    #17497
    Messages:
    11,008
    First Name:
    Rod
    Pearland, TX
    Vehicle:
    09 PreRunner SR5 DC
    A smoke machine may be a problem unless you can create some pressure to force the smoke out of the pipe. Smoke works for the EVAP system since there's some pressure, negative in spots, in the lines as the engine is running.

    Another idea, a bit differnt, is to use a Seafoam treatment according to the instructions to treat the intake and valves. For this you slowly pour Seafoam into the TB, or into a vaccum line, while the engine is running, then shut it down for 10-15 minutes. When you start it up it smokes like crazy for a few minutes. I did this treatment on my last truck and found an unknown exhaust leak. You just need to have a person or two looking under the truck on startup.
     
  9. Mar 2, 2011 at 7:58 AM
    #9
    dustinclm

    dustinclm [OP] Well-Known Member

    Joined:
    Apr 4, 2010
    Member:
    #34553
    Messages:
    500
    Gender:
    Male
    Thibodaux, La
    Vehicle:
    2012 Super White DC 4x4 V6
    Bilstein 5100 set at .85" WeatherTech Floor Mats
    Well I did the Seafoam through the break booster but didn't remember to look for the leak. I guess I'll just have to do it again if I can't find it any other way
    It's not a smell in the car, hell I can't smell it at all. I just hear it when I'm accelerating. When it's idling and I look for it, I can't feel it or really hear it
     
  10. Mar 2, 2011 at 9:50 AM
    #10
    Evil Monkey

    Evil Monkey There's an evil monkey in my truck

    Joined:
    Aug 8, 2007
    Member:
    #2352
    Messages:
    8,337
    Gender:
    Male
    First Name:
    Robert
    Escondido, CA
    Vehicle:
    07 4x4 DC SR5 TRD Off-road
    Weathertech front & rear mats, rear suspension TSB, Toytec AAL for TSB, Hi-Lift Jack, Bilstein 5100 & Toytec Adjustable coilovers, Built Right UCAs, KMC XD 795 Hoss Wheels, Definity Dakota MTs 285/75R16, Leer XR, Thule Tracker II & Thule MOAB basket
  11. Mar 2, 2011 at 10:02 AM
    #11
    dustinclm

    dustinclm [OP] Well-Known Member

    Joined:
    Apr 4, 2010
    Member:
    #34553
    Messages:
    500
    Gender:
    Male
    Thibodaux, La
    Vehicle:
    2012 Super White DC 4x4 V6
    Bilstein 5100 set at .85" WeatherTech Floor Mats
    i guess you can call the sound im hearing a "tick" or a "flutter", ill take the heat shield off the manifold and try to inspect it closer but its hard to see with all the years of mud on there
    its really loud on the pasenger side but i've noticed its slightly audible on my driver side too, and i have the 2.7l so my exhaust is only on the passenger side
     
  12. Mar 2, 2011 at 11:19 AM
    #12
    Lurkin

    Lurkin Well-Known Member

    Joined:
    May 21, 2009
    Member:
    #17497
    Messages:
    11,008
    First Name:
    Rod
    Pearland, TX
    Vehicle:
    09 PreRunner SR5 DC
  13. Mar 2, 2011 at 11:31 AM
    #13
    bjmoose

    bjmoose Bullwinkle J. Moose

    Joined:
    Aug 31, 2010
    Member:
    #42529
    Messages:
    6,000
    Gender:
    Male
    First Name:
    Steve
    San Jose CA
    Vehicle:
    '11 Std Cab 4x4 5sp
    OME suspension, ARB Air Lockers, CBI/Relentless/Pelfrey armor, HAM radio
    I've heard that a CO sensor wand from a smog shop is a really good tool for locating exhaust leaks. Call a couple smog check stations and see if they've ever diagnosed a leak.
     
  14. Mar 2, 2011 at 1:33 PM
    #14
    dustinclm

    dustinclm [OP] Well-Known Member

    Joined:
    Apr 4, 2010
    Member:
    #34553
    Messages:
    500
    Gender:
    Male
    Thibodaux, La
    Vehicle:
    2012 Super White DC 4x4 V6
    Bilstein 5100 set at .85" WeatherTech Floor Mats
    i couldnt tell you where a smog check station is around here, we dont have emissions where im from...
     
  15. Mar 2, 2011 at 2:57 PM
    #15
    skytower

    skytower Well-Known Member

    Joined:
    Jun 7, 2010
    Member:
    #38505
    Messages:
    3,228
    Gender:
    Male
    First Name:
    Dave
    virginia
    Vehicle:
    08 Tacoma 4x4
    Hitch and wiring, aux back-up light, rear strobe lights, radio and underseat sub.
    Stuff rags in the tailpipe and run seafoam like suggested on earlier post. Tape a rag over the end to keep them in(tape the outer diameter) Use enough rags to create more backpressure, not stall the engine. Don't run it long enough to burn the rags either.
     
  16. Mar 2, 2011 at 3:46 PM
    #16
    dustinclm

    dustinclm [OP] Well-Known Member

    Joined:
    Apr 4, 2010
    Member:
    #34553
    Messages:
    500
    Gender:
    Male
    Thibodaux, La
    Vehicle:
    2012 Super White DC 4x4 V6
    Bilstein 5100 set at .85" WeatherTech Floor Mats
    Good idea I'll have to try this soon
    Thanks
     
  17. Mar 8, 2011 at 6:14 PM
    #17
    dustinclm

    dustinclm [OP] Well-Known Member

    Joined:
    Apr 4, 2010
    Member:
    #34553
    Messages:
    500
    Gender:
    Male
    Thibodaux, La
    Vehicle:
    2012 Super White DC 4x4 V6
    Bilstein 5100 set at .85" WeatherTech Floor Mats
    it may also help to say that its only audible when accelerating, thats when i hear it very distinctly, when idling i can not hear it or it just isnt loud enough
     
To Top