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Crunch sound When going over Speed Bumps

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Old 04-14-2010, 03:17 AM
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Default Crunch sound When going over Speed Bumps

Does anyone know what can be causing a crunching sound at the front of my tc whenever i go over a bump.
I cant believe it has to do with the shocks cuz i just got tokico shocks and s-tech installed less than a week ago.
Heard from other car forums that it could be ball bearings or bushing spacer?? if anyone has experienced this before please let me know. Also i live in South Florida so it has nothing to do with cold weather.
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Old 04-14-2010, 03:33 AM
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could it b your front bumper hitting the ground?
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Old 04-14-2010, 03:56 AM
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could be the plastic underneath your car. i know when i was dropped lower with tokicos, my front wheels would rub the fender liner over bumps unless i was going SUPER slow.
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Old 04-14-2010, 04:28 AM
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Its your tire rubbing on your wheel well thats all. Happens to me all the time with bumps / dips in the road.

Last edited by karonos; 04-14-2010 at 04:30 AM. Reason: grammer ftl
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Old 04-14-2010, 04:29 AM
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Originally Posted by hern6579
Does anyone know what can be causing a crunching sound at the front of my tc whenever i go over a bump.
I cant believe it has to do with the shocks cuz i just got tokico shocks and s-tech installed less than a week ago.
Heard from other car forums that it could be ball bearings or bushing spacer?? if anyone has experienced this before please let me know. Also i live in South Florida so it has nothing to do with cold weather.

Well I'd say that some of the other posts could be plausible culprits for your issue. But I wanted to chime in with something else for you to check as well.
Both of my tC's I've had lowered on Hotchkis (which is close to lowering 2" front & back)... which is similar to your s-tech drop. Do you have those over the stock struts? If so, I've seen tc's lowered as much as I am/you are on stock struts where the front strut gets extended further than the length of the lowering springs up front... which can occasionally result in the lowering spring actually coming unseated slightly..but enough that it turns a bit. And it makes a sound very similar to what you are experiencing. Especially when turning the car. Easy way to check is just jack up each side and inspect the position the springs are at. It will be pretty obvious visually if one of them is not seated correctly. And you can check for signs of rubbing damage as suggested above in this thread then too.
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Old 04-14-2010, 11:24 AM
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thanks for the help guys, I dont think its the wheels rubbing because i don't hear it often enough when i go over bumps on the road. And im not that low in which my bumber is hitting the ground. Im def gonna jack up the car later on this week and see if there is anything that looks out of place, and for rubbing
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Old 04-14-2010, 12:07 PM
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Originally Posted by Mouse
Do you have those over the stock struts? .
he said in the beginning that he's got tokico shocks/struts
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Old 04-14-2010, 03:03 PM
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which side is it coming from? are you using factory bumpstops?
id recomend taking it all apart and inspecting everything. ive got riceland coilovers and mine made noise like your describing and the way i fixed it was to spray the bumpstops and the shaft with white lithium grease
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Old 04-14-2010, 03:27 PM
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Its seems to be only coming from the driver side. I still on factory bumpstops. Im just going to take apart the driver side and grease everything like you said and check if there is anything out of place. Thanks TunerKid
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Old 04-14-2010, 05:11 PM
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also make sure all the bolts are torqued to factory spec
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Old 04-15-2010, 02:15 AM
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also have you had an alignment yet?
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Old 04-15-2010, 05:11 AM
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Yea man, figured out the problem it was a couple of bolts that was loose.

tighten them up and now everything is fine.

No i haven't got the alignment done, i think i should be fine tho for now.

thanks everyone for there help and advice. Much appreciated
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Old 04-15-2010, 12:27 PM
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^^^usually a week to two weeks after you need one
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