What'd be the worst case scenario?

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Jun 6, 2008 | 06:34 PM

Checho

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From: Mayami

What'd be the worst case scenario?

I have a slight...wait no...its a loud ___ knock coming from my undercarriage on the left side of the car. Whenever I shift upwards (from 1st to 2nd..etc) theres is a knocking sound coming from under the car, almost like someone kicking it or something CRACKING.

I had it checked by one of my buddies and he said that he THINKS it could be that there is something loose under my car, whether it be something loose where the subframe meets the chassis, or something might be broken.

Its kind of embarrasing to pull up somewhere and have your car make a crack sound once let off the throttle.

What do you guys think it might be....

Jun 6, 2008 | 06:35 PM

tC_2NeR

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motor mount maybe...

some kinda mount

even a suspension part

bring it to scion

Jun 6, 2008 | 06:39 PM

Checho

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From: Mayami

lol its something that has been going on with the car for some time, but i took it in to toyota when it was less noticeable and they said "EVERYTHING IS A-OK!" obviously not.....

Jun 6, 2008 | 07:36 PM

Medications

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could be a gnome

Jun 6, 2008 | 08:41 PM

Dr_Isotope

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I'm in your pipes, clanging up deals.

Jun 6, 2008 | 09:02 PM

Macavely

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teamNJCT
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what rpms and speed are you shifting ?

Jun 7, 2008 | 04:18 AM

TylerC08

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The tC's Synchros are pretty loud not to mention our motor/tranny mounts aren't the best. 1st, 2nd, 3rd, and 3rd to 2nd I can easily hear the synchros. Does the noise only occur between shifting gears?

Jun 7, 2008 | 04:23 AM

davedavetC

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oOoo i have the same clicking i think, did you by anychance change your shifter linkage? i think it may be it, but idk for sure, ill check out the motor mounts and suspension this weekend tho.

Jun 7, 2008 | 04:32 AM

pioneer1976

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What all do you have on your car, aftermarket wise?

Jun 7, 2008 | 11:32 AM

#10

toyota_scion_tc

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How many miles do you have? It would be hard to belive its this but it is possible it could be your CV joint going bad. Climb under your car and grab the shaft and try to twist it in both directions to see if you have any play in it.

Jun 7, 2008 | 05:07 PM

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davedavetC

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well my car has been lowered since 15000 miles and now i have 86000 so that probably has a lot to do with it.

Jun 8, 2008 | 12:07 AM

#12

Checho

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From: Mayami

Sorry for the late replies guys I just got back from a show.

I have 45,000 miles and have been S/C for 4k

its not a synchros thing because I know you can hear the shift occur but this is a loud knock coming from the left side of the car...

as far as what speeds, DD i shift under 3500 rpms, but whether I shift at lower RPMs or higher ones you can still hear and slightly feel it.