Rear driver side squeak
10-01-2023, 09:31 AM
#1
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Thread Starter
Rear driver side squeak
OK... I haven't operated on the rear suspension yet but I hoped to get just an idea of what it could be.... there is a squeak the comes from the driver's side rear suspension... it not a bang or thump... it's a squeak when the wheel goes up and down with the road...... I tried pushing down on the side that makes noise but could not get it to move... leaning towards the stabilizer links.... any ideas... what is the usual weak spot of our rear suspension that squeaks... the sound is always there when the car is moving on the road.... I hope those who have experienced the same symptom can share an idea or two...
10-01-2023, 12:40 PM
#2
Try a little water or on the stabilizer bar bushings in the very bottom and go for a ride. Hopefully its that simple
10-01-2023, 08:57 PM
#3
RL Community Team
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2009 C2S 192K miles
Yea, try lubricating stuff before you start removing things. Start with some spray silicone... it won't last long but it will help you ID the offender. Do one thing at a time. First, start with the sway links and the brackets that hold the bar to the chassis. I suspect this is what it is... but you never know. Spray a ton of that crap in there... you won't hurt anything... both sides. Then go for a ride immediately. If it works, you will know pretty quickly.
If not that, then go to the top spring mounts... shoot that crap in there around the foam surrounds and such. Then start hitting the control arm mounts.
Once you find the offender, you can try using a better grease. Wait until the squeak returns... then use something that starts out as a solvent, penetrates, then set up as a sticky, high temp lubricant. I like Winzer Polylube 250... this is a miracle product. Just the best of all time. Once it sets up, it is thick and you probably will never have to reapply. Not for bearings and such due to its stickiness and thickness... but perfect for squeaks, hinges, door locks etc. The best lube I have every found... BMW and Porsche shops I frequented use it like it is holy water.
Peace
Bruce in Philly (now Atlanta)
Yea, try lubricating stuff before you start removing things. Start with some spray silicone... it won't last long but it will help you ID the offender. Do one thing at a time. First, start with the sway links and the brackets that hold the bar to the chassis. I suspect this is what it is... but you never know. Spray a ton of that crap in there... you won't hurt anything... both sides. Then go for a ride immediately. If it works, you will know pretty quickly.
If not that, then go to the top spring mounts... shoot that crap in there around the foam surrounds and such. Then start hitting the control arm mounts.
Once you find the offender, you can try using a better grease. Wait until the squeak returns... then use something that starts out as a solvent, penetrates, then set up as a sticky, high temp lubricant. I like Winzer Polylube 250... this is a miracle product. Just the best of all time. Once it sets up, it is thick and you probably will never have to reapply. Not for bearings and such due to its stickiness and thickness... but perfect for squeaks, hinges, door locks etc. The best lube I have every found... BMW and Porsche shops I frequented use it like it is holy water.
Peace
Bruce in Philly (now Atlanta)
10-01-2023, 10:36 PM
#4
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Thread Starter
anewman! Bruce! wise advice indeed. never heard of Winzer Polylube 250... but would thick sticky products attract dust and cause problems moving forward? one by one it is....
10-01-2023, 10:51 PM
#5
RL Community Team
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Peace
Bruce in Philly (now Atlanta)
Last edited by Bruce In Philly; 10-01-2023 at 10:53 PM.
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jumppiii (10-02-2023)
10-02-2023, 03:42 AM
#6
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Thread Starter
I believe you brother!! Looking already but so difficult to find... I might just by the wurth hhm2000 adhesive lubricant which I think is the same??? It's more readily available where I am...
10-02-2023, 04:26 AM
#7
Rennlist Member
Thread Starter
Seems like I have found where the possible causes of the squeak ...I sprayed dishwashing solution first, to the stabilizer bushings... no change, stab link, no change. I decided to remove the rear driver wheel, sprayed solution on the bottom shock bush... no change, then finally I sprayed on the spring perches; bottom and upper! Whalah!!! Squeak disappeared... I removed the wheel again cleaned the perches with pressure washer and sprayed Gummi phlege on the upper rubber bush... and some silicone on the lower spring perch.... tested again, no more squeak... will wait for it to come back and see if it's really the spring perches.... thanks brothers!!
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11-24-2023, 06:48 AM
#8
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Thread Starter
just wanted to update this one... the squeaking noise was not coming from the spring perches but instead was coming from the rear shock mount... i am guessing the foam in the rear shock mounts are made of polyurethane... this material is know to squeak... I removed the rear subwoofer and when i spryed the top with some silicone squeak disappeared! It did not last though so i used the adhesive spray Bruce recommended. i used the wurth 2000 adhesive spray... No more squeaks... used the car quite a number of miles already with spirited driving every now and then... beautiful music!!
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PatrickBateman (11-26-2023)
11-26-2023, 12:16 PM
#9
just wanted to update this one... the squeaking noise was not coming from the spring perches but instead was coming from the rear shock mount... i am guessing the foam in the rear shock mounts are made of polyurethane... this material is know to squeak... I removed the rear subwoofer and when i spryed the top with some silicone squeak disappeared! It did not last though so i used the adhesive spray Bruce recommended. i used the wurth 2000 adhesive spray... No more squeaks... used the car quite a number of miles already with spirited driving every now and then... beautiful music!!