Help Me Identify This Terrible Creaking Sound!!
04-02-08, 06:59 AM
#1
Lexus Test Driver
Thread Starter
Help Me Identify This Terrible Creaking Sound!!
For the past week Ive had the worst creaking/rattling sound EVER! It sounds like its coming from the rear passenger side but i dont know if thats just because of how my head is turned when Im driving.
It sounds like a loud creak when I go over speed bumps or enter driveways slowly and it sounds like a rattle when my rear wheels go over even the smallest bump.
Im thinking it must be something under or inside of the car's body. I checked all in the trunk, mesing with things to try and replicate the noise, but no luck. Plus it wouldnt be this loud if it was something in the trunk. I looked underneath the car for anything unusual but again, nothing.
I dont know where else to look. Has anyone else experienced a noise like this? Please help me narrow it down! Thanks CL!
It sounds like a loud creak when I go over speed bumps or enter driveways slowly and it sounds like a rattle when my rear wheels go over even the smallest bump.
Im thinking it must be something under or inside of the car's body. I checked all in the trunk, mesing with things to try and replicate the noise, but no luck. Plus it wouldnt be this loud if it was something in the trunk. I looked underneath the car for anything unusual but again, nothing.
I dont know where else to look. Has anyone else experienced a noise like this? Please help me narrow it down! Thanks CL!
04-02-08, 07:19 AM
#3
Lexus Test Driver
Thread Starter
04-02-08, 07:57 AM
#5
your shock & spring sometimes make a noise when it went over a bump. It's not cost penny, just ask the guy who did the installation to re-install it. Meaning....take out from the car then adjust the placement of the shock & spring. i'm not talking "uninstall" the spring from shock.
04-02-08, 07:58 AM
#6
iModerate
There is a TSB for both the from and the rear coil spintgs making a clicking noise. This is for 01-02 GS430's. You did not state your year so i am not sure if this will apply to you.
Front (TSB# SU004-02):
To eliminate abnormal noise from the front coil springs, a self-adhesive urethane tube has been adopted on the lower coil of the front springs to prevent metal to metal contact between the lower coil spring and the spring support (mounted on the strut) when driving over bumps.
Rear (TSB# SU005-02):
During the rear strut assembly process, the coil spring upper insulator may have become deformed or unseated causing a metal to metal interference between the upper end of the coil spring and the spring upper support (suspension support). This interference may result in a clicking noise from the rear suspension when driving over bumps.
Front (TSB# SU004-02):
To eliminate abnormal noise from the front coil springs, a self-adhesive urethane tube has been adopted on the lower coil of the front springs to prevent metal to metal contact between the lower coil spring and the spring support (mounted on the strut) when driving over bumps.
Rear (TSB# SU005-02):
During the rear strut assembly process, the coil spring upper insulator may have become deformed or unseated causing a metal to metal interference between the upper end of the coil spring and the spring upper support (suspension support). This interference may result in a clicking noise from the rear suspension when driving over bumps.
04-02-08, 08:04 AM
#7
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Location: Arizona
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I had this on my first GS. Your bushings are probably dryrotted and cracked causing the noise. Crawl under there and spary some silicon spray on all the bushings and contact points of the springs. You can get it at Home Depot in a yellow can.
That will probably quiet them up, but you will need to spray them every so often, more if it rains. The silicon holds up better and longer than WD-40.
That will probably quiet them up, but you will need to spray them every so often, more if it rains. The silicon holds up better and longer than WD-40.
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04-02-08, 08:18 AM
#8
Lexus Test Driver
Thread Starter
your shock & spring sometimes make a noise when it went over a bump. It's not cost penny, just ask the guy who did the installation to re-install it. Meaning....take out from the car then adjust the placement of the shock & spring. i'm not talking "uninstall" the spring from shock.
There is a TSB for both the from and the rear coil spintgs making a clicking noise. This is for 01-02 GS430's. You did not state your year so i am not sure if this will apply to you.
Front (TSB# SU004-02):
To eliminate abnormal noise from the front coil springs, a self-adhesive urethane tube has been adopted on the lower coil of the front springs to prevent metal to metal contact between the lower coil spring and the spring support (mounted on the strut) when driving over bumps.
Rear (TSB# SU005-02):
During the rear strut assembly process, the coil spring upper insulator may have become deformed or unseated causing a metal to metal interference between the upper end of the coil spring and the spring upper support (suspension support). This interference may result in a clicking noise from the rear suspension when driving over bumps.
Front (TSB# SU004-02):
To eliminate abnormal noise from the front coil springs, a self-adhesive urethane tube has been adopted on the lower coil of the front springs to prevent metal to metal contact between the lower coil spring and the spring support (mounted on the strut) when driving over bumps.
Rear (TSB# SU005-02):
During the rear strut assembly process, the coil spring upper insulator may have become deformed or unseated causing a metal to metal interference between the upper end of the coil spring and the spring upper support (suspension support). This interference may result in a clicking noise from the rear suspension when driving over bumps.
I had this on my first GS. Your bushings are probably dryrotted and cracked causing the noise. Crawl under there and spary some silicon spray on all the bushings and contact points of the springs. You can get it at Home Depot in a yellow can.
That will probably quiet them up, but you will need to spray them every so often, more if it rains. The silicon holds up better and longer than WD-40.
That will probably quiet them up, but you will need to spray them every so often, more if it rains. The silicon holds up better and longer than WD-40.
Is there a link to pictures showing exactly where these contact points are. Im not the most tech savvy. Obviously I would stay away from the bakes but Can I mess something up by spraying the wrong parts?
Thanks for yall's help everyone. I hate when I dont like my car and, right now, I cant stand driving it. Makes me want to start looking for something new.
04-02-08, 08:25 AM
#9
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Location: Arizona
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Basically at every pivot point.
Crawl under the back and have someone push up and down on the bumper and you will see things move. Everywhere you see it move, spray it.
Don't spary any silicon on the brake components. That might not be good.
04-02-08, 10:05 AM
#13
iModerate
