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Thread: Buring Smell coming from AC vent on high REV (SWIFT)

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    alikhan7's Avatar
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    Default Buring Smell coming from AC vent on high REV (SWIFT)

    Last night i drove my swift with high rev 5-6 k in 1,2 and 3rd gear suddenly i smelled burning plastic/coolant/gas from
    AC vent and it went away after 6-7 seconds when RPM comes to 3-4 k
    Car has done 3500 km and its almost new
    Secondly my cousin 2010 swift with 60,000 on ODO gives same smell on high rev
    I searched same issue over other forums and most of replies are its Normal

    people are concluding

    1- Catalytic converter burning sulfur on high rev
    2- AC filter bacteria when heated give rotten egg like smell

    Any one experience this with their car please share your expert opinion and comments

    Thanks

  2. #2
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    kasaas's Avatar
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    Tyre tu burn nahin hote?? R u using stock tyres or wide ones??


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    I m using 195/60 Yokohama aspec with alloys it's DX so i changed stock rim and tyres
    Well no idea it could be

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    plastic smell from vents is most likely from the HVAC box if the fresh air intake is closed off. This was also a problem in the original MK2 VW Golfs, after about 3 or 4 years drivers faced severe burn injuries from the hot coolant dumping on their feet caused by bad connections to the heater core. VW redid the system with a positive bypass valve in the engine room.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    I have the same issue in my swift too
    although it sounds real lame
    i cleaned out my filthy engine bay and now the issue is gone

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    its the CAT actually...it will only come when you rev high like over 4.5-5k rpm
    Whenever a bird shits on my car, I eat a plate of scrambled eggs on my front porch just to let them know what I'm capable of...

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