02 GT rear suspension chirp

trinity_gt

10 Year Member

Jan 31, 2003

3,125

81

99

Canada

Jan 16, 2006

#1

• Jan 16, 2006

• #1

WTF causes this? I took the car out of hibernation yesterday for a mid-winter gas-guzzling spin and was reminded of something that had slipped my mind since fall: a rear suspension chirp that happens over just about all "sharp" edges bumps like manhole covers and moderate to large pavement cracks. Smooth undulations don't seem to cause it.

Quad shocks?
LCA front bushings?
Parking brake cable where it slides through the bracket?

The car has new coils and shocks (Bullitt kit) and new FRPP UCAs. As I recall, it did this before all that stuff too.

 

HoustonGT

Gilded Gelding

Apr 6, 2003

1,418

0

0

Houston

Jan 16, 2006

#2

• Jan 16, 2006

• #2

BUMP. I'm interested too, my GT seems to do the same thing

 

tomustang

Psychotic Member

Founding Member

Jun 8, 2000

3,434

2

78

McLean Hospital

Jan 16, 2006

#3

• Jan 16, 2006

• #3

I'd have to say it's the bend in the cat-back scraping against the UCA's

 

scalder

Member

Aug 1, 2003

375

0

16

Dallas/Plano TX

Jan 16, 2006

#4

• Jan 16, 2006

• #4

The front bushings on my Mega Bite LCA's were making that same noice...greased em up and the noise went away...easy to get to so give it a try.

 

trinity_gt

10 Year Member

Jan 31, 2003

3,125

81

99

Canada

Jan 16, 2006

#5

• Jan 16, 2006

• #5

tomustang said:

I'd have to say it's the bend in the cat-back scraping against the UCA's

Click to expand...

Hmm. Interesting idea. I'll have to get under it and look for evidence of contact there.

 

BennyBlown2v

New Member

Dec 9, 2004

1,233

1

0

Carmel, INdiana

Jan 16, 2006

#6

• Jan 16, 2006

• #6

When I swapped out my solid axle the front UCA bushings were shot, and the front lowers weren't much better. Not to mention the quad shocks being shot after about 5000 miles...

Get the car up on some jack stands and jack up the axle a bit to see if it makes the sound while articulating the rear end by hand!

 

HoustonGT

Gilded Gelding

Apr 6, 2003

1,418

0

0

Houston

Jan 17, 2006

#7

• Jan 17, 2006

• #7

scalder said:

The front bushings on my Mega Bite LCA's were making that same noice...greased em up and the noise went away...easy to get to so give it a try.

Click to expand...

Hmm, what kind of grease do i need to get and is it available at a place like O'Reilly's and Autozone?