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Thread: vitz 2010 knocking beyond 50KPH

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    Post vitz 2010 knocking beyond 50KPH

    Dear forum members,

    I seek your advice for my toyota vitz (also in your opinion is there a good mechanic in Lahore (ideally near Defense) who understands Vitz?)

    my observations for the car are as:
    1- The car is 1000CC, 2010 model, 2013 import.
    2- Mileage is around 110,000KM
    3- it has been subjected to regular maintenance, oil (OIL) has been changed even 4000KM, and tune up including clean up of spark plugs, carburetor has been done about 6000-8000 KM (the last tune up was done 3000 KM back and oil change done 1000KM ago. Car battery is also new.
    4- When I use a combination of high-octane and normal petrol, the car runs good, however in last month or so I have not been getting hi-octane and running it on normal petrol and for this reason, I am thinking that the problem that I am describing is related to engine knocking.
    5- when the car is driven in the morning, generally it takes some time to give some noise but the noise is more common in the afternoon or evening. Even in the evenings car produces no noise at low speeds.
    6- When I am accelerating the car above 50-60 KM, I observe knocking which goes away when I remove my foot from the accelerator.
    7- I also feel that car runs a bit heavy, for example, from 0 KM-60 KM I am feeling less pick in the car (may be that is the way with 1000 cc cars and I am just feeling it more at the moment).
    8- Also some times horn sound is alright, but sometimes it comes out quite bad as if someone has grabbed horn from throat.

    Can you please suggest what is going on? If it is because of knocking, then besides using a mixture of high-octane/normal petrol, is there a way to clean the engine to reduce/eliminate noise?


    Regards,
    Rahman

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    Exact address please?


    Sent from my iPhone using PW Forums

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    Contact @saboor73. He might help you

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    Contact @saboor73. He might help you

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    No I did not visit Osama, I went to Mudassar (on Walton road). The guy was earlier working in Toyota Walton but now he has started his own shop just opposite to his previous assignment.


    Quote Originally Posted by syncview View Post
    hi
    maybe I'm forgetting, but did you even visit me? i never ever inspected a vitz and suggested using hi octane.

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    Quote Originally Posted by syncview View Post
    hi
    maybe I'm forgetting, but did you even visit me? i never ever inspected a vitz and suggested using hi octane.
    What could be possible issue you guess? Can i visit you on saturday morning? I live in Islamabad but will be in lahore over the weekend

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    Have a vitz which occasionally knocks... Is it only the fuel that needs to be changed?

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    Quote Originally Posted by omerakif View Post
    Have a vitz which occasionally knocks... Is it only the fuel that needs to be changed?
    Yes try hi octane.

    Sent from my SM-N920C using Tapatalk

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    Quote Originally Posted by m_umairr View Post
    What could be possible issue you guess? Can i visit you on saturday morning? I live in Islamabad but will be in lahore over the weekend
    you can call and come by
    https://www.facebook.com/OsamaAbbasPhotography

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    Finally the culprit hs been identified, i have changed my catalytic conveter and haven't faced the issue anymore. No knocking at all.


    Sent from my iPhone using PW Forums

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    ok, so since my post, what I have done and observed are:
    - I had the cleaning/"tune up" plus the guy said just clean the same fuel filter for now and later on we will change it.
    - The car runs fine with full energy and pick when I am using a combination of hi-octane and normal petrol. But if somehow I can not get hi-octane and tank has 100% normal petrol (I use Total or very occasionally Shell in Defence), then the car does some knocking when the speed is around 90KMPH.

    so probably the fault is not on the car but the petrol companies which are selling lower quality petrol at full price (so much so for ethics and morality).

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    Quote Originally Posted by m_umairr View Post
    Finally the culprit hs been identified, i have changed my catalytic conveter and haven't faced the issue anymore. No knocking at all.


    Sent from my iPhone using PW Forums
    How much does it cost for a new catalytic converter? Does anyone have any information about the shocks of vitz, their price and where I can get them? Also please recommend some good mechanic for vitz.

    I have knocking issue with my vitz, also on bumy roads, it starts behaving very badly as if it has gone out of control and one of the wheel axle is gonna break.

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