dfw

**hatchttu** · 11-22-2012, 12:08 PM

Hey guys, I need some help. I have a 2012 mustang gt. Over the last month or so I noticed a knocking from what seemed to be the front drivers suspension. Last march I installed koni str.ts and steeda ultralites. The sound started off going over bumps and progressed to being random but constant. It sounds like a golf ball rattling around in a cup. Like 2 metal pieces bouncing off one another.

Last week (11/13) I brought it to the dealer and they replaced the front lower control arms per the LCA tsb. The sound was gone for a few days but has come back with great vengeance. I brought the car back to the dealer today and they are telling me the LCAs are fine and that the sound is coming from the springs. They won't touch the springs because they are aftermarket so they can't tell me what about them may be making the noise. I Have pulled the wheel off and everything seems to be tight. The sound happens on seemingly smooth roads, sometimes over bumps, and sometimes it won't happen over bumps. But while you are driving it is constantly happening. I may pull the front strut out tomorrow and look at it. Any advice on what to look for? I am also thinking of having ntb check it out after thanksgiving.

Here is a video

**Midnight11** · 11-22-2012, 12:19 PM

did you put in the gt500 strut mounts?

**Grandpa** · 11-22-2012, 12:28 PM

Did you put the isolaters back in with the aftermarket springs?

**DirtyD** · 11-22-2012, 12:33 PM

Same problem I have. You installed the springs without isolators. My BMR springs are doing the same thing on my factory struts.

I couldn't get the isos off the stock springs, so I said screw it.

**hatchttu** · 11-22-2012, 12:38 PM

The steeda springs had an isolator on them already. At least it looks like it does. Its an extra clear thing covering the botton 2 coils. Is that not really an isolator? I will try to get a pic this afternoon of it. Yes, I did use the GT500 strut mounts.

Is this not an isolator?

**DirtyD** · 11-22-2012, 02:14 PM

It may not be thick enough. Idk. I'll have to get a video of mine

**hatchttu** · 11-22-2012, 02:18 PM

Cool, thanks, I hope it is something that simple

well, at least not something that will make my car fall apart

**jayman33** · 11-22-2012, 02:24 PM

that should work, this may sound dumb but did you tighten down your struts fully? Could also be your strut mounts have gone bad.

**hatchttu** · 11-22-2012, 02:32 PM

Yeah, I checked everything and everything is nice and tight. I haven't pulled the strut out yet as I am about to go to Ft. Worth for the weekend. Do you mean the top 21mm bolt on the strut?

**Courtesy Flush** · 11-23-2012, 10:30 AM

Originally Posted by jayman33

your strut mounts have gone bad.

This.

**hatchttu** · 11-23-2012, 11:44 PM

Will it be obvious when I take the strut out that it is bad? What should I look for?

**Dan12GT** · 11-25-2012, 03:28 PM

interested to see what this ends up being.

**Courtesy Flush** · 11-25-2012, 04:33 PM

Originally Posted by hatchttu

Will it be obvious when I take the strut out that it is bad? What should I look for?

Before taking everything off, have you tried pushing down on either side of front of the car to replicate the noise?

A bad strut mount would show cracks or breaks within the rubber isolator between the spring and the bottom of the mount.

**hatchttu** · 11-25-2012, 06:39 PM

Originally Posted by Courtesy Flush

Before taking everything off, have you tried pushing down on either side of front of the car to replicate the noise?

A bad strut mount would show cracks or breaks within the rubber isolator between the spring and the bottom of the mount.

Yes, and I can not replicate the sound doing this. I will order some new mounts and the rubber isolators and start eliminating possible issues this week.

**hatchttu** · 11-25-2012, 07:24 PM

What do you guys think about the J&M camber plates, I assume these are the replacements for the GT500 strut mounts as in I wouldn't need to buy anything else.

http://www.latemodelrestoration.com/...-Camber-Plates