Please identify these sounds! LR4 Vibration on Gas pedal and Front End Clicking

JARentDTOM · Jul 15, 2019

I have two sounds going on (please listen to video). If you know what these are please share.

Video 1: Pressing gas pedal when Parked or Driving vibrates the entire car. Feel it in the driver’s seat, it even is enough to make the back window vibrate.

Video 2: I can hear this at different times, but certainly with the turn of the wheel and the loudest when backing up uphill. Video starts on flat surface then goes uphill. Can’t replicate the sound when on the lift.

Thanks

ktm525 · Jul 15, 2019

According to your dash you have a flat tire.

avslash · Jul 15, 2019

On your second one, front end clicks/clunks etc are most typically lower control arm bushing related.

Hard to tell you anything definitive from a video. The real answer is to get it in the air, remove the wheels and start exploring.

JARentDTOM · Jul 15, 2019

Not running tpms sensors, so constant light. LCAs replaced about 2 months ago. Can’t reproduce sound on the lift??? Weird.

avslash · Jul 15, 2019

Checked your sway bar bushes? Those can clack, as well.

Lower ball joints done when you changed LCA bushes? Upper ball joints?

Check sway bar end link ball joints?

Checked for play in front wheel bearings?

Tie Rods?

Just throwing items out there that have a joint that could go bad and cause noise.

JARentDTOM · Jul 16, 2019

The LCAs were the entire OEM replacement part. Nothing else replaced at the same time. Will keep exploring.

toddjb122 · Jul 16, 2019

That second video is interesting. You'd think that would be relatively easy to find if you just crawled under there and started grabbing and rattling things. That sounds like something loose, thin piece of metal, at 38 seconds it just sounds like something hanging and clanging.

Good luck. Let us know what you find.

Quijote · Jul 16, 2019

toddjb122 said:
That second video is interesting. You'd think that would be relatively easy to find if you just crawled under there and started grabbing and rattling things. That sounds like something loose, thin piece of metal, at 38 seconds it just sounds like something hanging and clanging.

Good luck. Let us know what you find.

I would tend to agree with this. It certainly seems speed (rotational speed)-dependent. But it doesn't seem to make the sound every revolution (hard to tell from video), the the period is consistent. I'd look underneath for a mechanical interference.

As for the first video, my mind immediately goes to engine mounts, but I've not heard of those going on these cars (yet). If not those, it has to be some kind of drive train attachment looseness, I'd think.

Sorry I am no more help.

JARentDTOM · Jul 16, 2019

I thought the same. Get underneath start tugging on parts and something has to be loose. It’s at the shop now so maybe they’ll find something loose. Still have some warranty left on it.

mklinker · Jul 16, 2019

is #2 a CV joint?

Please identify these sounds! LR4 Vibration on Gas pedal and Front End Clicking

JARentDTOM

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ktm525

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avslash

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JARentDTOM

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avslash

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JARentDTOM

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toddjb122

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Quijote

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JARentDTOM

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mklinker

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