Vibrating brake pedal

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Thread: Vibrating brake pedal

  1. #1
    Senior Member fiat420's Avatar
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    Vibrating brake pedal

    has anyone ever experienced their brake pedal Vibrating while at a complete stop? This only happens when I'm at a complete stop in Drive.
    Last edited by fiat420; 01-11-2017 at 03:45 AM.

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    Senior Member smark's Avatar
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    A pulsating brake pedal, which may be accompanied by a shuddering or jerky stop during normal braking usually means a warped rotor or an out-of-round drum -- although it can sometimes be caused by loose wheel bearings, a bent axle shaft or loose brake parts. If the vehicle is equipped with ABS, however, some pedal feedback and noise is normal during panic stops or when braking on wet or slick surfaces. But you should not experience any ABS pedal feedback when braking normally on dry pavement. In your case. Most likely, there is a issue with your ABS system.

    A vehicle’s ABS control module is designed to notify the driver with a warning light if there is a malfunction in the system. Rarely is a malfunction the module or ABS itself. It is often one or more sensors, or the wiring to the sensors. The most common ABS problems occur when sensors become contaminated with debris or metal shavings.
    Malfunctions also occur when sensor wiring becomes damaged, resulting in intermittent or no continuity. In more corrosive environments or serious brake system neglect, brake fluid can become contaminated and the hydraulic control unit fails to function.
    If you have a malfunction in the ABS, physically check all wiring and the brake sensors first. When checking the brake sensors, look for metal shavings and other debris that could cause false feedback to the electronic ABS controller. False feedback causes the ABS to trigger when it shouldn’t, or not function when it should.
    You may not have an ABS scan tool at home, but any reputable repair shop will have one, and the scan tool is invaluable if you can’t find a physical reason for your ABS issues. After the scan tool produces a fault code, you can proceed with your ABS troubleshooting. Whatever the problem, the repair is much easier once a fault is established.

    Best bet. Have a qualified brake specialist go over the ABS system.
    Last edited by smark; 01-11-2017 at 05:31 AM.

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    Senior Member fiat420's Avatar
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    Okay. Yeah my braking is smooth, its just when when I'm at a complete stop the break pedal will vibrate. Then once it let off the brake in Drive it goes away.
    Quote Originally Posted by smark View Post
    A pulsating brake pedal, which may be accompanied by a shuddering or jerky stop during normal braking usually means a warped rotor or an out-of-round drum -- although it can sometimes be caused by loose wheel bearings, a bent axle shaft or loose brake parts. If the vehicle is equipped with ABS, however, some pedal feedback and noise is normal during panic stops or when braking on wet or slick surfaces. But you should not experience any ABS pedal feedback when braking normally on dry pavement. In your case. Most likely, there is a issue with your ABS system.

    A vehicle’s ABS control module is designed to notify the driver with a warning light if there is a malfunction in the system. Rarely is a malfunction the module or ABS itself. It is often one or more sensors, or the wiring to the sensors. The most common ABS problems occur when sensors become contaminated with debris or metal shavings.
    Malfunctions also occur when sensor wiring becomes damaged, resulting in intermittent or no continuity. In more corrosive environments or serious brake system neglect, brake fluid can become contaminated and the hydraulic control unit fails to function.
    If you have a malfunction in the ABS, physically check all wiring and the brake sensors first. When checking the brake sensors, look for metal shavings and other debris that could cause false feedback to the electronic ABS controller. False feedback causes the ABS to trigger when it shouldn’t, or not function when it should.
    You may not have an ABS scan tool at home, but any reputable repair shop will have one, and the scan tool is invaluable if you can’t find a physical reason for your ABS issues. After the scan tool produces a fault code, you can proceed with your ABS troubleshooting. Whatever the problem, the repair is much easier once a fault is established.

    Best bet. Have a qualified brake specialist go over the ABS system.

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    Senior Member SeaDawg's Avatar
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    Quote Originally Posted by fiat420 View Post
    Okay. Yeah my braking is smooth, its just when when I'm at a complete stop the break pedal will vibrate. Then once it let off the brake in Drive it goes away.
    What happens if you shift the automatic transmission to NEUTRAL at a stop? When the automatic transmission is in gear and you are stopped with your foot on the brake, the engine is still driving the transmission and you are stopped because the transmission (torque converter) is 'slipping' till you release the brake. Also the fact that the engine is still under load while basically at idle adds to the vibration factor. My 2016 Sport automatic vibrates slightly at a stop, just the nature of the beast, IMHO.

    If it makes you uneasy, by all means have it checked out to confirm whether there is a problem.
    Max
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    Senior Member fiat420's Avatar
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    Once I switch to netruel or any other gear the vibration goes away.

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    Senior Member Tedolph's Avatar
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    Don't worry about it.


    Probably just a broken engine mount.

    Tedolph

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    Senior Member smark's Avatar
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    To the Op. Automatic, or Manual transmission. I just went for a drive. Nice 61 degree day. I have a automatic. There is a slight vibration in the brake pedal at a stop. It the engine transmitting it.
    How many miles are on your car.

  9. #8
    Senior Member fiat420's Avatar
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    25,000 miles. This Fiat dealer 21 miles away from me just recently dropped the Fiat name but they moved all their inventory and some of their Fiat technicians to my somewhat local Chrysler dealer, and they said they can do warranty work for my car. I made an appointment for next Tuesday I'll update you on what happens

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    Senior Member fiat420's Avatar
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    I'm in the waiting room at the Chrysler dealership right now. I'll let you know what happens.

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    Senior Member fiat420's Avatar
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    After an hour n half with three of their mechanics looking at it, they found out nothing was wrong with it. They brought in a new Fiat and showed me its normal. The customer service was great, and I didn't have to pay a diagnostic fee with my warranty. Grade A+ service

  12. The Following 3 Users Say Thank You to fiat420 For This Useful Post:

    bryanintowson (01-18-2017),SeaDawg (01-18-2017),smark (01-18-2017)

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