help with rear suspension clunk - Ford Mustang Forum
 
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post #1 of 9 (permalink) Old 11-20-2012 Thread Starter
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help with rear suspension clunk

The sound is similar to a strut bearing rattle or clunk when they are shot, but its coming from the rear of the car. Exhaust and mufflers are not the culprits. Any ideas of what to check would be a help.


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post #2 of 9 (permalink) Old 11-20-2012
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could you be hearing the drive shaft clunking?

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post #3 of 9 (permalink) Old 11-20-2012
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Check Panhard bar bolt torque. If not clamped tight the bolt rattles in the bushing sleeve. Ask me how I know.
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post #4 of 9 (permalink) Old 11-20-2012
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When does the noise happen?

What has changed(i.e. suspension work) and when did you first notice the noise?

You said you checked the exhaust, how exactly? Could the pipes be contacting the axle?

I see you have 55D springs which means the rear shocks were unbolted for their installation, have you checked those?

I also see you have a convertible which has additional structure braces, were those worked on or possibly contacted by the axle when doing the suspension work?

Also note, in case you did the suspension changes a while ago that does not mean they aren't to blame. If a bolt was snugged but not torqued it can still come loose.
post #5 of 9 (permalink) Old 11-20-2012
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I wonder if the 55d's are causing the axle to hit the factory bump stops.


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post #6 of 9 (permalink) Old 11-21-2012
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Quote:
Originally Posted by steveespo View Post
check panhard bar bolt torque. If not clamped tight the bolt rattles in the bushing sleeve. Ask me how i know.
Steve
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post #7 of 9 (permalink) Old 11-21-2012
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I had a rattle from the rear of the car. All the suspension was stock. Tech found the bolt securing the lower control bar was loose. He tightened it and all is well.

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post #8 of 9 (permalink) Old 11-21-2012
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Quote:
Originally Posted by Brain505 View Post
The sound is similar to a strut bearing rattle or clunk when they are shot, but its coming from the rear of the car. Exhaust and mufflers are not the culprits. Any ideas of what to check would be a help.
Hi Brian505,

I recommend you make an appointment for diagnosis with your Ford dealer and PM me with your VIN, dealer, mileage, full name, and best daytime number so I can forward it to the Customer Service Manager for your area.

Deysha
post #9 of 9 (permalink) Old 11-21-2012 Thread Starter
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Thank you all, I will first check all the bolt torques, make sure they are to spec, Its a very subtle sound i here so i know its not a bottom out issue or exhaust. But who knows, maybe when I put the springs in some bolt might have loosened a bit.

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