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Thread: Strange Sound while Accelarating

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    a5ifejaz's Avatar
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    Default Strange Sound while Accelarating

    I have Vitz 07 / 1.0 with automatic transmission. While Accelerating i listen a strange sound like Dholki bursting and if I put less pressure on accelarator it sounds like knocking. Dholki bursting type sound is not consistent but only when car is in pressure or you can say while going to height or putting extra pressure. please suggest any good mechanic for Vitz in Rawalpindi / Islamabad /Wah Cantt.

    I have another issue with it as well, if I have to do emergency braking its kind of slipping discs, because on much pressure i can hear sound of grrr grrr and car doesn't get slower.

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    Quote Originally Posted by a5ifejaz View Post
    I have Vitz 07 / 1.0 with automatic transmission. While Accelerating i listen a strange sound like Dholki bursting and if I put less pressure on accelarator it sounds like knocking. Dholki bursting type sound is not consistent but only when car is in pressure or you can say while going to height or putting extra pressure. please suggest any good mechanic for Vitz in Rawalpindi / Islamabad /Wah Cantt.

    I have another issue with it as well, if I have to do emergency braking its kind of slipping discs, because on much pressure i can hear sound of grrr grrr and car doesn't get slower.
    For dholki sound visit a exhaust repair vala , most probably catalyst is removed datz da cause , for knocking use mix of hi octane and normal petrol or just hioctane if u can afford

    Dat grr grr sound is abs kicking in , if its kicking in to early and the car doesnt stop , get ur breaks service done , check break leathers if they are genuine or nt , also check ur tyres , tyres having poor grip also causes this

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    well I have been to exhaust repair shop. he simply made a whole in dholki. removed it.. and after cleaning put back in. No difference in sound. how much catalyst cost? and what i should told repair wala about it? that huge sound is so annoying.

    I have tried HiOctane, got some difference for couple of days but still heard that sound. I have yellow light @dashboard and Enercon guy told me its because of Coils. What could be other cause of knocking?

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    Quote Originally Posted by a5ifejaz View Post
    well I have been to exhaust repair shop. he simply made a whole in dholki. removed it.. and after cleaning put back in. No difference in sound. how much catalyst cost? and what i should told repair wala about it? that huge sound is so annoying.

    I have tried HiOctane, got some difference for couple of days but still heard that sound. I have yellow light @dashboard and Enercon guy told me its because of Coils. What could be other cause of knocking?
    Either get a replacement for ur catalyst or install another dholki it will reduce the noise
    If u have yellow light on it means there are errors in ur electrical system get it scanned by an obd2 scanner and c the codes

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