LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Metal on metal sound when I turn

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Old Feb 1, 2004 | 03:43 PM
  #1  
slider's Avatar
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Thumbs down Metal on metal sound when I turn

Whenever I am going slow, I'd say 25mph or below, and turning to the left it sounds like the rear passenger side brake makes a metal on metal sound. It's pretty loud. Doesn't do it when I turn right. The rear pads were just replaced and I have powerslot rotors back there. Any ideas?
Old Feb 1, 2004 | 04:21 PM
  #2  
Robs97Z28's Avatar
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From: Martinez,CA
most likely it is axle bearing on the rear end.
Old Feb 1, 2004 | 04:38 PM
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I had some probs close to what you are describing and when I posted on here about them these are some of the responses I got.

control arm bushingsor loose torque arm bolts. Tighten the rear torque arm bolts (even if they appear tight by hand), and lube the LCA and sway bar bushings and see if there's a difference. Also could be a spring or shock by the sounds of what you're describing but I'm not sure without hearing it.

You should also tighten the Pan Hard arm where it elbows. This joint may appear tight on first inspection, but can produce alot of noise. And while you're under the car, tighten everything you can find, then perhaps lubricate the sway bar bushings.

Another idea is that the rear springs tend to squeak at their bottom metal perches. Put some grease right where the spring sits on the perch.

Hope this takes care of the prob for ya
Old Feb 1, 2004 | 06:46 PM
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From: Texorado
Check your rotor and see if it is getting torn up. The bracket on the caliper may be contacting the rotor when you turn.

Mine started doing this after I was hit in the rear by another car and I couldn't figure why it did it. I ground the part of the bracket down that was contacting the rotor and now it has stopped.

Just an idea of something to check.
Old Feb 1, 2004 | 07:24 PM
  #5  
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Originally posted by RedHottG2
I had some probs close to what you are describing and when I posted on here about them these are some of the responses I got.

control arm bushingsor loose torque arm bolts. Tighten the rear torque arm bolts (even if they appear tight by hand), and lube the LCA and sway bar bushings and see if there's a difference. Also could be a spring or shock by the sounds of what you're describing but I'm not sure without hearing it.

You should also tighten the Pan Hard arm where it elbows. This joint may appear tight on first inspection, but can produce alot of noise. And while you're under the car, tighten everything you can find, then perhaps lubricate the sway bar bushings.

Another idea is that the rear springs tend to squeak at their bottom metal perches. Put some grease right where the spring sits on the perch.

Hope this takes care of the prob for ya
I'll have to check the bolts and bushings when I get a chance. I doubt it's the springs or shocks. The springs are not stock and the shocks are replacement stocks that haven't been on long.
Old Feb 2, 2004 | 09:21 AM
  #6  
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From: Round Rock, Texas
I was having this problem after a brake job, only on hard left turns, but it was rear driver's side. The responses I got, and some of the searching I did, indicated that the caliper may not be centered. I did two things ... (1) coated the back of the pads with the orange goo, and (2) inserted very thin body shims (either 1/32 or 1/64) at the caliper bracket bolts to move it outward slightly. There is a GM shim you can buy that mounts to the axle housing, but I didn't want to pull the axle, as I had just done that recently for the seals/bearings. I just did the math and found a set of body shims that were very close to the same thickness. Worked for me.

Do a search on my user name and you should find a thread where Shoebox explains the shim issue.

Edit: Here it is ...

http://web.camaross.com/forums/showt...hreadid=124895

Last edited by jwade95Z; Feb 2, 2004 at 09:24 AM.
Old Feb 2, 2004 | 05:13 PM
  #7  
slider's Avatar
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So where exactly would I put the shims?
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