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Thread: Traction Control and loud noises? Reply to Thread
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Topic Review (Newest First)
12-09-2012 03:16 PM
a351must2
Quote:
Originally Posted by BaconZombie View Post
It's wheel hop and engine movement. One of the biggest issues from the factory with our cars is the squishy engine mounts that allow a massive amount of engine movement to provide a smoother ride with less vibrations. Upgrading the rear engine mount is one of the easiest and cheapest mods a lot of us has done. It helps with the wheel hop and engine movement, but not drastically. I'm still waiting (nay, hoping) that someone comes out with a full set of engine mount inserts for our cars, like what I have for my '03 SpecV. That helped tremendously with these issues, but does transfer a bit more vibration to the cabin, especially via the shifter (if you have a manual), and the pedals.

Just be forewarned, while it's fairly uncommon, a lot of hard, repetitive beating on the engine mounts can make them fail, and fail hard.
Dead on exactly what's happening ... for me it happens whether traction control is on or off. Common problem for anything with half way sticky tires and squishy engine or suspension mounts. Much easier to fix in rear wheel drive than front wheel drive, but stiffer engine mounts are usually the fix in FWD. With stiffer engine mounts comes more vibration and noise though.
12-09-2012 02:11 PM
Firezapper Yes I have the same issue on wet roads. It only happens from a stop. It is the brakes grabbing as the TC engages. The speed a which the tires are spinning then the brakes trying to stop the spinning causes the violent thud. The wheels do not spin as easily on dry roads so not as violent when TC kicks in.

I'm wondering what will happen in snow. Same effect or not as violent.
12-09-2012 12:06 PM
BaconZombie It's wheel hop and engine movement. One of the biggest issues from the factory with our cars is the squishy engine mounts that allow a massive amount of engine movement to provide a smoother ride with less vibrations. Upgrading the rear engine mount is one of the easiest and cheapest mods a lot of us has done. It helps with the wheel hop and engine movement, but not drastically. I'm still waiting (nay, hoping) that someone comes out with a full set of engine mount inserts for our cars, like what I have for my '03 SpecV. That helped tremendously with these issues, but does transfer a bit more vibration to the cabin, especially via the shifter (if you have a manual), and the pedals.

Just be forewarned, while it's fairly uncommon, a lot of hard, repetitive beating on the engine mounts can make them fail, and fail hard.
12-09-2012 11:45 AM
suss6052
Quote:
Originally Posted by BetaDnB View Post
Doesn't the traction control system work by utilizing the ABS?
Technically the original systems worked only based on the ABS, but the newer systems also integrate throttle control now that the car is drive by wire and can reduce the engine performance/ throttle response as well to prevent wheel spin after it catches it.

I've still been able to get it to chirp the tires before it catches them at times on wet pavement or going around a corner at low speeds.
12-09-2012 11:29 AM
BetaDnB Doesn't the traction control system work by utilizing the ABS?
12-09-2012 11:25 AM
ivofe One more thing don't know if this makes a difference but i do have sport suspension option on my 2012 TI. Maybe the springs or even the 18 rims? Really has me scratching my head.
12-09-2012 11:22 AM
ivofe Checked right wheel its not loose. Thanks for all the info looks like a trip to the dealer for me. I have had numerous vehicles with TC and never had that hopping clunking sound when it kicks in. I don't think it is normal.

Thanks again and any additional responses would be appreciated.
12-08-2012 11:33 PM
flingwing1969
Quote:
Originally Posted by ivofe View Post
Just wondering if anyone else is having a large clunking under the car when your traction control kicks in. I mean it sounds like something is going to snap under the car. I have had traction control on a lot of my cars never heard this. Just want to make sure this is not normal for the Focus before I take it to the dealer.

Thanks
No. Never experienced this and I live a mile up a very steep dirt/mud road and I usually leave the traction control on.
12-08-2012 09:32 PM
paul21 I have a similar feeling. TC off is normal, but with TC on and a wet road, if I accelerate and it turns on it chops/pulses really harshly, and everything bounces in the cup holders. In the snow, not at all. I felt similar rattling in the cabin once when I ran through a pothole at night that cracked the sidewall on my tire.

I'm not sure if it's normal, I know it's obnoxious and sounds harmful on a wet surface, and it'd probably scare the crap out of any passengers I have if it activates.
12-08-2012 08:43 PM
upstater What happens when you disengage the TC?
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