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Thread: Vitz 2007 Jerks whien applying break and release to accelerate!

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    Angry Vitz 2007 Jerks whien applying break and release to accelerate!

    Aoa,

    I have some problem with my ride when I apply brake in my Toyota Vitz 2007 and release the break, it feels like some invisible brake is still applied. If I do not accelerate after releasing break, the car jerks after some time as if the invisibly applied break is removed. This does not happen every time but some days this happens more frequently.

    I thought this could be a transmission problem and changed transmission fluid, Engine Oil change, Air Filter, Throttle body clean, break service, NGK laser spark plugs even with Hi-Octane refill (as i always use to add some). At first i thought it solved the problem but issue still exists.

    What could be wrong with my car? Your help is highly appreciated

    Thanks

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    this like 12 thread I have seen on problem of vitz in 2 day

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    have you changed the transmission oil filter?

    Quote Originally Posted by obsession.mind.9 View Post
    Aoa,

    I have some problem with my ride when I apply brake in my Toyota Vitz 2007 and release the break, it feels like some invisible brake is still applied. If I do not accelerate after releasing break, the car jerks after some time as if the invisibly applied break is removed. This does not happen every time but some days this happens more frequently.

    I thought this could be a transmission problem and changed transmission fluid, Engine Oil change, Air Filter, Throttle body clean, break service, NGK laser spark plugs even with Hi-Octane refill (as i always use to add some). At first i thought it solved the problem but issue still exists.

    What could be wrong with my car? Your help is highly appreciated

    Thanks
    - www.crackwheels.com - A skilled Dictator is much more beneficial to Country......than a Democracy of Ignorant people

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    Bro recieved your pm, try this out
    Vitz 2007 Jerks whien applying break and release to accelerate! -1537551
    Laws r Made to be Broken

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    The problem is with your ABS pump...it has either gotten faulty or airlocked. Try this to confirm:
    1. When this problem is taking place, immediately switch transmission to N. The problem should go away immediately.
    2. If the above is correct then park your car, take out ABS fuse from the fusebox under bonnet. Now when you start the car, ABS dashboard light will show up as ABS has been disabled. Now drive your car and note if your original problem has gone away. If yes, then it confirms the diagnosis. Put the fuse back and upon ignition the ABS dash light will go away.
    PM me if this is ur issue.

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    Great procedure ahamid. Are you a certified mechanic?
    VGate ELM327, Launch Creader 6+ / 7+ / 8, X431 V, VDM, Autel DS708 / MD802, Honda HDS, Toyota IT2, Digiprog 3 Odometer reverser. Anyone needs help or guidance on these, please PM.

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    Quote Originally Posted by ahamid View Post
    The problem is with your ABS pump...it has either gotten faulty or airlocked. Try this to confirm:
    1. When this problem is taking place, immediately switch transmission to N. The problem should go away immediately.
    2. If the above is correct then park your car, take out ABS fuse from the fusebox under bonnet. Now when you start the car, ABS dashboard light will show up as ABS has been disabled. Now drive your car and note if your original problem has gone away. If yes, then it confirms the diagnosis. Put the fuse back and upon ignition the ABS dash light will go away.
    PM me if this is ur issue.
    Bro I'm also facing a similar issue with my Civic 2007. The steering vibrates upon pressing the brake pedal and also abs ain't working. So in such case, can you Pls explain a bit more what does the mechanic have to do in case of air lock and In case of faulty abs, can it be repaired

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    I am a mechanical engineer with interest in cars

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    Quote Originally Posted by mohammadsahel View Post
    Great procedure ahamid. Are you a certified mechanic?
    Im a mechanical engineer with interest in cars

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    Quote Originally Posted by tahirwajeeh View Post
    Bro I'm also facing a similar issue with my Civic 2007. The steering vibrates upon pressing the brake pedal and also abs ain't working. So in such case, can you Pls explain a bit more what does the mechanic have to do in case of air lock and In case of faulty abs, can it be repaired
    Is your ECU throwing an ABS warning light on dashboard? If yes, then the code needs to be checked. If you can get it scanned by OBD then the problem can be diagnosed better. If you dont have access to an OBD scanner then let me know, I will tell you a method to read the code without scanner by using a jumper wire.

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    Quote Originally Posted by ahamid View Post
    Is your ECU throwing an ABS warning light on dashboard? If yes, then the code needs to be checked. If you can get it scanned by OBD then the problem can be diagnosed better. If you dont have access to an OBD scanner then let me know, I will tell you a method to read the code without scanner by using a jumper wire.
    Nope it's not throwing a warning light. But I do have a Obd2 scanner so will check it and report back

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    I believe the issue is with your brake pads then. Ask your mechanic to check brake pads and brake rotors.

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    Flush the brake fluid as mentioned HERE make sure the fluid reservoir is not empty at any moment in case of ABS equipped cars
    - www.crackwheels.com - A skilled Dictator is much more beneficial to Country......than a Democracy of Ignorant people

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    Quote Originally Posted by ahamid View Post
    I believe the issue is with your brake pads then. Ask your mechanic to check brake pads and brake rotors.
    Thanks Bro. I do believe it may be something to do with brake pads cuz I went for nissin this time rather than genuine. My mistake...

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    Nissin aint bad but only if these are genuine Nissin. There are many zalim people out there who sell refurbished brake pads as new.

    You could get your car up on hydraulic lift at car washer shop and try rotating each tyre by hand. If any of tge tyre, esp front one seems to have a resistance in rolling or doesnt roll as freely as others then get the brake pad and rotor of that tyre checked.

    Has your fuel avg gone down as well?

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