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Old 02-28-2009, 09:24 PM   #1
notsofast
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Default Loud squeaking noise from rear suspension

Any help here would be greatly appreciated.
I have a 2006 GT, 5-sp manual, that has developed a loud, very annoying "squeaking" sound that seems to be coming from the passenger side rear suspension. The noise occurs whenever the car is in motion, fore-aft, up-down, regardless of whether drive train is engaged or while coasting, not related to braking. I have aftermarket (Metco) LCAs and FR springs (same as the Eibach Pro-Kit).
I took it to the dealer and their diagnosis was "rocks in the exhaust pipe," which they dutifully extracted. Naturally, I was more than a little skeptical that the exhaust-pipe-rock-extraction would cure the problem. After driving the car home, the rocks must have worked their way back in, as the annoying sound has returned.
I don't know the cause, but I would think it might be a worn bushing or perhaps a shock (they are OEM, not aftermarket) based on how it sounds to me.
Any thoughts or ideas?
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Old 02-28-2009, 09:34 PM   #2
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I believe most if not all mustang owners have or will have this problem. I also hear a squeaking noise coming from the rear. At first it was from the passenger and now both sides. I talked to a guy today who was an 06 Mustang GT and asked him about it. He said he took his car in and he was told there was nothing they could do. The mechanic said it was due to flex. He was told new shocks and struts wouldn't help.
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Old 02-28-2009, 09:51 PM   #3
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Gman,
Thanks for the post, however depressing it may be. I hope it can be fixed - I don't think I can live with it as a daily driver.
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Old 02-28-2009, 10:05 PM   #4
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I know you said you notice it while in motion. Do you notice it at all speeds or when driving slowly? I mostly notice the squeaking when going slow and especially over speed bumps. At cruising speeds, I hear it only once in while.
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Old 02-28-2009, 10:28 PM   #5
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It is more noticable at low speeds. I think it is also there at highway speeds, but road noise obscures it to some extent.
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Old 11-08-2011, 02:10 PM   #6
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Did any of you fix this? I know my tokico dspecs and eibach springs did NOT!!!!!!
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Old 11-08-2011, 11:15 PM   #7
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my guess is it could be the swaybar bushings? i know my v6 when i added the rear sway with poly bushings it started squeaking
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Old 11-10-2011, 04:52 PM   #8
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have you tried put some of that silicon lube on the LCA's? My BMR LCA'S have grease fittings I add grease once a year.
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Old 11-10-2011, 05:28 PM   #9
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get poly bushings and make sure you fill the grease trays inside the bushing. coating the inside with a disgusting amount of grease isn't going to hurt you. I did this on my old V6 and never heard a squeak out of it
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Old 11-13-2011, 04:12 PM   #10
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I had a loud squeeking on my rear suspension and it ended up being the sway bar bushing, poped the caps off them greesed them up and i was good to go
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Old 11-13-2011, 04:12 PM
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