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Rear suspension knock. - 6G Celicas Forums

Topic #84659 36 posts Started by richee3
Syaoran, that sounds like sway bar bushings to me. I've seen quite a few posts where people heavy a mystery knock and the bushings look good, but the sound went away with new bushings.

I suppose I could update my particular problem. The sound has mostly disappeared from the right side of the car and now primarily comes from the left. I can't replicate it at all. It's still the same noise but it's getting louder. I'll probably be selling the TRD coilovers soon in lieu of something softer, and I'm tempted to put the stock suspension back in just to see if anything changes. The struts definitely are not blown, nothing seems to be wrong with the coils, but all signs are pointing to the coilovers themselves being the culprit. I just find it odd that when I hit a bump, I get the one big thunk that is to be expected then I get three or four light knocks.

"Employ your time in improving yourself by other men's writings, so that you shall gain easily what others labored hard for." -Socrates. Even Socrates told us touse the search button!2006 Aston Martin V8 Vantage.1998 Celica GT-BEAMSSwapped.2022 4Runner TRD Off Road Prenium.2021 GMC Sierra AT4.
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QUOTE (richee3 @ Aug 25, 2012 - 3:08 PM) *
>Syaoran, that sounds like sway bar bushings to me. I've seen quite a few posts where people heavy a mystery knock and the bushings look good, but the sound went away with new bushings.

I suppose I could update my particular problem. The sound has mostly disappeared from the right side of the car and now primarily comes from the left. I can't replicate it at all. It's still the same noise but it's getting louder. I'll probably be selling the TRD coilovers soon in lieu of something softer, and I'm tempted to put the stock suspension back in just to see if anything changes. The struts definitely are not blown, nothing seems to be wrong with the coils, but all signs are pointing to the coilovers themselves being the culprit. I just find it odd that when I hit a bump, I get the one big thunk that is to be expected then I get three or four light knocks.


I'll look into that, since they're easy to replace. I'm guessing any sway bar bushing as long as they're 16mm will work right? Or is that the wrong size?

Kinda odd that your issue might be coils... being TRD and all...

1993 Celica GT Coupe - sold1994 Celica GT Liftback
Did OP ever find the solution?

I am having almost the same problem. I haven't heard a *clunk* noise over bumps though. My problem lies when I brake. Clunk is coming from the rear passenger only. I hear the clunk almost when I am fully coming to a stop. I don't brake aggressively either. I don't carry anything in the trunk. I took out the jack just to cancel out things hitting the frame of the car. Spare tire is tight in place.

I haven't replaced any suspension part yet but I am replacing the rear sway bar end-links soon along with the sway bar bushings.
Check your caliper pins. When they dry out they tend to make a popping noise when braking. All you have to do is remove the pin boot and pop the pin out clean and grease it.
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QUOTE (955SFE @ Apr 20, 2013 - 6:32 PM) *
>Did OP ever find the solution?

I did indeed. It was defunct coilovers. I agree with Travis, you might want go check those pins.

"Employ your time in improving yourself by other men's writings, so that you shall gain easily what others labored hard for." -Socrates. Even Socrates told us touse the search button!2006 Aston Martin V8 Vantage.1998 Celica GT-BEAMSSwapped.2022 4Runner TRD Off Road Prenium.2021 GMC Sierra AT4.
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QUOTE (travisxcore @ Apr 20, 2013 - 7:50 PM) *
>Check your caliper pins. When they dry out they tend to make a popping noise when braking. All you have to do is remove the pin boot and pop the pin out clean and grease it.


Thanks for the tip. I'm actually replacing all brake pads/rotors
soon, those pins will be on the list to.