Suspension and Chassis Questions about your suspension? Need chassis advice?

rear rattle (shocks...springs???)

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Old Jun 9, 2002 | 06:01 PM
  #1  
mypontiac's Avatar
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Car: 1991 Conv. TA
Engine: Forged 350 with D-1SC
rear rattle (shocks...springs???)

I have a 1991 TA convertible with 70,000 miles. I have a rattle in the rear of the car.

I put the seat down and layed down in the back. The rattle is coming from the outside of the car and about 1/4 from the rear of the tires on both sides.

When I look under the car at this area I see the springs and shocks.

Does anyone have experience with rattles from bad shocks or springs?

Thanks.
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Old Jun 9, 2002 | 08:09 PM
  #2  
85zcamaro's Avatar
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From: Northeast
Me and my dad had the same problem a while ago and we found out that it was from the right rear brake pad.?? It got loose and made a really anoying sound over bumps and things so i hope this could help a lil.
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Old Jun 9, 2002 | 09:27 PM
  #3  
mypontiac's Avatar
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Car: 1991 Conv. TA
Engine: Forged 350 with D-1SC
Maybe, but it would have to be on both sides and really audible.

Also onlt occurs on bumpy roads. Not just regular driving.
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Old Jun 10, 2002 | 08:07 PM
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Bird_of_Prey's Avatar
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From: Morris, Manitoba, Canada
Car: Formula
Engine: 400 sbc
Transmission: 700r4
rear sway bar bushing or controle arm bushings.. check them to see if they're tight or not..
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Old Jun 10, 2002 | 08:45 PM
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From: long island
Car: 90 Formula, 02 ws6
Engine: 305 tpi, ls1
Transmission: 700r4, t-56
Axle/Gears: stock posi 2.73, 12 bolt with 4.11s
do you have your e brake hooked up
if so try pulling it up hard a couple of times
this should adjust the rear brake pads
i get it from both sides of my car when the brakes get used up a bit
my e brake is not hooked up so i go underneath and do it manualy
trust me it had be baffled for a wile then i did this and the sound was gone
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Old Jun 10, 2002 | 09:51 PM
  #6  
mypontiac's Avatar
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Car: 1991 Conv. TA
Engine: Forged 350 with D-1SC
I sprayed some silicone on the rear sway bar and control arm bushings. I also sprayed the bottom of the coils where they meet the metal bottom retainer. It still made the noise this morning. So I took it to my mechanic this afternoon.

We drove down some extremely bumpy New Orleans roads!

I could not get the noise to occur!!

So I drove the car the rest of the day with no noise. So either the extremely bumpy road knocked something back in place or the silicone worked itself into where it needed to be????

Guess I will keep everyone informed as the week goes.

Thanks.
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Old Jun 10, 2002 | 10:30 PM
  #7  
chevymad's Avatar
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From: Cathlamet, Washington
Car: 87 Formula
Engine: 327
Transmission: 700r4
Axle/Gears: 3.23
I put up with a rattle in the back of my car for a long time. Could not find it! Turned out that the bracket that the sway bar end links hook to (the one on the car) was loose. It would work its way up and down with bumps. The only reason I finally found it was because the metal behind it polished up. I spot welded it on and no rattle now for the past 50,000 miles.
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Old Jun 11, 2002 | 07:09 AM
  #8  
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From: San Antonio, TX
Car: 1988 IROC-Z
Engine: L98 (350 TPI)
Transmission: MD8 (700 R4) + 3.42 LS1 Rear
i had an annoying rattle coming from the rear of my 86 ROC. it was pissing me off so went ahead checked everything out. it was my panhard bar that was loose tighten it up and all was good again.
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Old Jun 15, 2002 | 02:03 PM
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burnham59's Avatar
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From: Southern Arizona
Might check the axles also. I just found my vibration is a slightly bent axle.
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