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Old 12-07-2002, 06:26 PM   #1
boxerT
Scooby Newbie
 
Member#: 16311
Join Date: Mar 2002
Chapter/Region: TXIC
Location: Austin TX
Vehicle:
2004 STi
WR Blue

Default Cold weather noise from the rear suspension of a WRX sedan.

I have the SPT/STi struts with STi top mounts, stock endlinks, and Cusco rear anti-roll bar set at full stiff.

Whenever the otside temperature drops below 55 degrees or so, the suspension makes loud rubbing noise (during compression)while driving over speed bumps or road humps. On a warm day the noise goes completely away.

I was experiencing this noise last winter, it went away during the summer and now it is back again.

Any ideas?
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Old 12-08-2002, 06:36 PM   #2
WRX1832
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Member#: 4384
Join Date: Feb 2001
Location: Millis, Ma
Vehicle:
02 WRX(13.2@100.5)
Silver

Default

I know this sounds weird but press down on the rear of the trunk and listen for the crunching noise. I had a very similar issued and thought it was the suspension because it also only did it on bumps. Kind of a crunching noise. It got so bad I was concerned with driving the car, so I removed the strut for inspection.....nothing...everything was find. reinstalled and the noise was still there. Then I found it...the trunk when going over a bump will compress into the body of the car (probably worse with a spoiler because of the added weight). The noise I was getting was from the trunk latch itself. Attempted to adjust it did not work and that is when I applied white lithium grease to the latch and the part it clamps on to. Noise gone. I was amazed that was it because of how severe the noise was, but it worked.

Give it a shot before tearing apart your suspension. I cannot believe I am the only one with this problem.

Mike
Nice and quiet 02 WRX
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Old 12-08-2002, 09:41 PM   #3
boxerT
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Member#: 16311
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Location: Austin TX
Vehicle:
2004 STi
WR Blue

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Thanks, I will try that and let you know what happened.

Did yours do that in colder weather only?

My car does have the factory rear spoiler.
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Old 12-09-2002, 04:43 PM   #4
boxerT
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Member#: 16311
Join Date: Mar 2002
Chapter/Region: TXIC
Location: Austin TX
Vehicle:
2004 STi
WR Blue

Default

After applying the lithium grease, the noise did not go away completely, but was reduced substantially. Next, I will try to lubricate the trunk lid springs to see if that will help.

Thanks WRX1832!
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