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front end clunk

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Old Jun 24, 2014 | 11:13 PM
  #1  
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front end clunk

i have a 1991rs it has a clunking in the front end. it seems to be near the passenger side foot well. it happens under hard accel and decel . it tends to happen more while turning but happens in a straight line as well. the car has new tie rods, ball joints , struts and sway bar mounts. none of this has made any improvement. im at a loss. any help from the sages here at thirdgen?
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Old Jun 25, 2014 | 06:47 AM
  #2  
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: front end clunk

For the heck of it, check the transmission and/or torque arm mounts.

JamesC
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Old Jun 25, 2014 | 06:49 AM
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Re: front end clunk

Sounds like the K-member bolts aren't tight.
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Old Jun 25, 2014 | 06:56 AM
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Re: front end clunk

Yea it isn't those . Its def from the tront of the car . They looked good
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Old Jun 25, 2014 | 06:58 AM
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From: Florida
Car: 1987 Black IROC-Z (SOLD)
Re: front end clunk

Sway bar bushings or broken end link.
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Old Jun 25, 2014 | 07:02 AM
  #6  
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Re: front end clunk

Yea it isn't those . Its def from the front of the car . They looked good
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Old Jun 25, 2014 | 07:03 AM
  #7  
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Re: front end clunk

Sorry for the double post .i checked the links they are from like a year ago they look new
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Old Jun 25, 2014 | 08:06 AM
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From: Short Summer, VT
Car: 1985 Trans Am T-Top
Engine: 305 TPI
Transmission: T-5 5 Speed
Axle/Gears: 3.42 posi 1LE 10 bolt
Re: front end clunk

Broken spring or worn a arm bushings.
Sometimes it can be hard to see the broken spring if just the tail end is cracked.
Almost certainly need new bushings on the aarms by now.
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Old Jun 25, 2014 | 09:19 AM
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Re: front end clunk

Originally Posted by stealtht/a
Broken spring or worn a arm bushings.
Sometimes it can be hard to see the broken spring if just the tail end is cracked.
Almost certainly need new bushings on the aarms by now.
I was hoping it wasn't the a arm bushings . They are still there but look a little tired. I was hoping it was something else that i was overlooking. But im beginning to think you are correct
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Old Jun 25, 2014 | 09:31 AM
  #10  
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From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: front end clunk

Originally Posted by sorrys70
I was hoping it wasn't the a arm bushings . They are still there but look a little tired. I was hoping it was something else that i was overlooking. But im beginning to think you are correct
sometimes ,you get a noise like that when the strut mounts go bad
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Old Jun 25, 2014 | 10:37 AM
  #11  
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Re: front end clunk

Strut mounts are new . The two prime suspects are a arm bushings and maybe a frame crack ( hope not )
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Old Jun 25, 2014 | 04:10 PM
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From: Lexington, SC
Car: 1987 SC/1985 TA
Engine: 350/vortec/fitech
Transmission: T56
Axle/Gears: 3.27 9-bolt
Re: front end clunk

jack it up at the control arm and check for play in the wheel holding it at 12 and 6. a little play in the bearings is normal, but significant play can be from a bad strut, bj, mount or loose strut bolts.

check your idler arm by trying to move it up and down by hand. any movement is cause for replacement.

with it on the ground, have someone turn the wheel while you watch the box and linkage for anything obviously moving incorrectly.
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Old Jun 25, 2014 | 07:32 PM
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Re: front end clunk

K-member = the piece that the engine sits on and the front lower control arms are bolted to

Sounds like your K-member bolts are loose.
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