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Exhaust smell, rear window down

Discussion in 'General 4Runner Talk' started by 4runneragain, Nov 8, 2015.

  1. Nov 8, 2015 at 6:05 PM
    #1
    4runneragain

    4runneragain [OP] New Member

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    I dont have a sunroof and when i roll back window down on my 2015 4runner the exhaust smell in the cab is terrible, my 2002 i had didnt have this problem, but it had a sunroof. Anyone have ideas? I have heard reroute of rear exhaust to side exit helps.
     
  2. Nov 8, 2015 at 6:29 PM
    #2
    MeefZah

    MeefZah Curmudgeonly

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    Things with stuff, but nothing much
    Yeah I notice it too, once in a while. Makes sense, negative pressure causes suction of sorts. Try diving down a dirt road with the rear window open for a more visible lesson in that!
     
  3. Nov 8, 2015 at 7:16 PM
    #3
    drunner

    drunner New Member

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    Seems like a pretty common issue with the 4th and 5th gen runners. You can chop off the resonator so the exhaust exits out the bottom of the runner (instead of the back) or you can reroute the exhaust out the side.
     
  4. Nov 8, 2015 at 7:35 PM
    #4
    UssMoGn

    UssMoGn That Vegas Dude

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    Happens on the 3rd gens too. Mine does it all the time.
     
  5. Nov 8, 2015 at 10:33 PM
    #5
    Bangers Runna

    Bangers Runna New Member

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    Do you have a spoiler?
     
  6. Nov 11, 2015 at 11:47 AM
    #6
    UssMoGn

    UssMoGn That Vegas Dude

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    Mine dumps out down right above the rear axle
     
  7. Nov 11, 2015 at 11:48 AM
    #7
    UssMoGn

    UssMoGn That Vegas Dude

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    And no.
     
  8. Nov 13, 2015 at 2:54 PM
    #8
    4Runner4Ever

    4Runner4Ever New Member

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    I've not found this to happen on my 2014 tho with the roof open there is enough draft to suck in a small car.
     
  9. Nov 13, 2015 at 3:48 PM
    #9
    Husky Driver

    Husky Driver Sitka's chauffeur

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