Another rear suspension clunk thread please help - Ford Mustang Forum
 
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post #1 of 15 (permalink) Old 06-29-2013 Thread Starter
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Another rear suspension clunk thread please help

Ok guys
I'm so tired of this clunk that I have from my rear passenger suspension. Any advice or experiences that you have are welcome. It sounds like I have a bad shock, when ever I drive over a rough road or the imperfection, it will make a cluck, cluck, clunk sounds. It's like something is loose down there. I have sr springs with orange konis all around, I only have them installed for a few months along with j &m lcas and panhard bar. It started to clunk about 3 months ago and I have been reading all of the clunk threads here and for a while. I have replaced my rear shock with a new koni orange about 3 weeks ago, the cluck was a little better but now it's back. I have replaced my oem sway bar end links with bmr and the clunks still there. So two days ago I installed my stock lcas back on, and guess what? It's still there. I also thought it might be my exhausts and I got some urethane bushing exhaust hangers for them, now my exhausts barly moves and it still clunks. It's so annoying to the point that I don't even enjoy driving my car any more. Please help


2012 mustang v6 performance package, power mods: airraid intake, borla s-type exhaust, appearance mods: saleen front grille, hood spears, roush side spliters, 2013 tail lights, retro fitted head lights with led and hid, shorty antena, black deck lid, gt500 steering wheel, oem take off leather seats, retro black shift knob, suspension mods: koni shocks/struts, sr springs, gt500 top mounts, panhard bar, lca.
1994 mustang gt 5.0
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post #2 of 15 (permalink) Old 06-30-2013
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how's your upper control arm look?


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post #3 of 15 (permalink) Old 06-30-2013 Thread Starter
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Quote:
Originally Posted by Prodigalsixer View Post
how's your upper control arm look?
It's stock, I never touched it. And the clucks come from the right rear somewhere

2012 mustang v6 performance package, power mods: airraid intake, borla s-type exhaust, appearance mods: saleen front grille, hood spears, roush side spliters, 2013 tail lights, retro fitted head lights with led and hid, shorty antena, black deck lid, gt500 steering wheel, oem take off leather seats, retro black shift knob, suspension mods: koni shocks/struts, sr springs, gt500 top mounts, panhard bar, lca.
1994 mustang gt 5.0
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post #4 of 15 (permalink) Old 06-30-2013
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Go through everything and make sure all your bushings are seated properly... I used to get a real annoying squeak from the rear drivers side. Ended up being the e-break cable's shield rubbing on the LCA... So stupid yet so annoying... Other things to look at are your bump stops and the cups that your rear springs sit in. If the springs are not seated properly on the rubber boot they will pop.


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post #5 of 15 (permalink) Old 07-01-2013 Thread Starter
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I will look into that later this week. But to me, it still feels and sounded like a bad shock all over again???
Thanks

2012 mustang v6 performance package, power mods: airraid intake, borla s-type exhaust, appearance mods: saleen front grille, hood spears, roush side spliters, 2013 tail lights, retro fitted head lights with led and hid, shorty antena, black deck lid, gt500 steering wheel, oem take off leather seats, retro black shift knob, suspension mods: koni shocks/struts, sr springs, gt500 top mounts, panhard bar, lca.
1994 mustang gt 5.0
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post #6 of 15 (permalink) Old 07-03-2013
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Originally Posted by deuce106 View Post
Ok guys
I'm so tired of this clunk that I have from my rear passenger suspension. Any advice or experiences that you have are welcome. It sounds like I have a bad shock, when ever I drive over a rough road or the imperfection, it will make a cluck, cluck, clunk sounds. It's like something is loose down there. I have sr springs with orange konis all around, I only have them installed for a few months along with j &m lcas and panhard bar. It started to clunk about 3 months ago and I have been reading all of the clunk threads here and for a while. I have replaced my rear shock with a new koni orange about 3 weeks ago, the cluck was a little better but now it's back. I have replaced my oem sway bar end links with bmr and the clunks still there. So two days ago I installed my stock lcas back on, and guess what? It's still there. I also thought it might be my exhausts and I got some urethane bushing exhaust hangers for them, now my exhausts barly moves and it still clunks. It's so annoying to the point that I don't even enjoy driving my car any more. Please help
Hi deuce106,

I recommend you have your vehicle checked out at your Ford Dealer. Your Service Manager is in the best position to look into this for you. He can check into any warranty, recalls, or Customer Satisfaction Programs that may apply to your vehicle. Let me know the outcome. Have a great day!

Deysha
post #7 of 15 (permalink) Old 07-06-2013
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I have the same exact problem as you. I'm thinking about putting back my stock rear springs to see if that fixes the problem. You're right when you say it's hard to enjoy your car when you hear all this clunking in the back.

2011 V6, Race Red, Performance Package, Eibach Sportline Springs, Airaid CAI, Roush Axlebacks, 20x8.5/20x10 Stance VIP Evolution Wheels, Nitto Invo 255x35/20,295x35/20.
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post #8 of 15 (permalink) Old 07-06-2013 Thread Starter
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Quote:
Originally Posted by damfong View Post
I have the same exact problem as you. I'm thinking about putting back my stock rear springs to see if that fixes the problem. You're right when you say it's hard to enjoy your car when you hear all this clunking in the back.
Don't waste your time with the springs, I already tried that. I think it might be my sway bar or maybe my panhard bar.

2012 mustang v6 performance package, power mods: airraid intake, borla s-type exhaust, appearance mods: saleen front grille, hood spears, roush side spliters, 2013 tail lights, retro fitted head lights with led and hid, shorty antena, black deck lid, gt500 steering wheel, oem take off leather seats, retro black shift knob, suspension mods: koni shocks/struts, sr springs, gt500 top mounts, panhard bar, lca.
1994 mustang gt 5.0
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post #9 of 15 (permalink) Old 07-07-2013
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Let me know if it works. For once I'd like to just hear road noise.

2011 V6, Race Red, Performance Package, Eibach Sportline Springs, Airaid CAI, Roush Axlebacks, 20x8.5/20x10 Stance VIP Evolution Wheels, Nitto Invo 255x35/20,295x35/20.
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post #10 of 15 (permalink) Old 07-08-2013 Thread Starter
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I went around and tightened up my lcas, panhard bar and specialy sway bar endlinks bolts. It defiantly feels much better than before but there is still a little clunk here and there. I will let you know how it goes in a few days

2012 mustang v6 performance package, power mods: airraid intake, borla s-type exhaust, appearance mods: saleen front grille, hood spears, roush side spliters, 2013 tail lights, retro fitted head lights with led and hid, shorty antena, black deck lid, gt500 steering wheel, oem take off leather seats, retro black shift knob, suspension mods: koni shocks/struts, sr springs, gt500 top mounts, panhard bar, lca.
1994 mustang gt 5.0
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post #11 of 15 (permalink) Old 07-25-2013 Thread Starter
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Ok it has been a few days since then, now the clunks are back. It's not only on the the right rear any more, it's now clunking on both left and right rear. I'm so tired of it and I don't know what to do with this issue any more. I have been throwing parts in left and right, new rear shocks, new lcas, new sway end links, new bushings and Mobil one grease just to try to fix this problem. My question is for those who has strano adjustable rear swar bay kit, are you guys happy with it? Does it make any weird clunking noises at all? I'm willing to spend more money one last time to fix this issue.
Please some one help me
Thank you

2012 mustang v6 performance package, power mods: airraid intake, borla s-type exhaust, appearance mods: saleen front grille, hood spears, roush side spliters, 2013 tail lights, retro fitted head lights with led and hid, shorty antena, black deck lid, gt500 steering wheel, oem take off leather seats, retro black shift knob, suspension mods: koni shocks/struts, sr springs, gt500 top mounts, panhard bar, lca.
1994 mustang gt 5.0
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Man, polyurethane is harder than rubber, that will transmit noise. Thicker aftermarket sway bars and LCAs and panhard bars are beefier than OEM and that too will transmit more noise.

In my case the "clunk" is the endlink sliding across the sway bar. I can reproduce it with my hand. Doesn't affect handling, it's annoying but increased NVH just comes with the territory when you're upgrading your suspension.
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Originally Posted by deuce106 View Post
Ok it has been a few days since then, now the clunks are back. It's not only on the the right rear any more, it's now clunking on both left and right rear. I'm so tired of it and I don't know what to do with this issue any more. I have been throwing parts in left and right, new rear shocks, new lcas, new sway end links, new bushings and Mobil one grease just to try to fix this problem. My question is for those who has strano adjustable rear swar bay kit, are you guys happy with it? Does it make any weird clunking noises at all? I'm willing to spend more money one last time to fix this issue.
Please some one help me
Thank you
Let me get this escalated to the customer service manager for your area, deuce106. Please PM me with your VIN, dealer, full name, mileage, and best daytime number so I can help.

Deysha
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Hey Deuce106, were you ever able to figure out what it was? It sounds like I have the EXACT same problem as you. I have SR springs and the J&M pan hard bar as well, so I'm wondering maybe if the SR springs or bar have something to do with it? I'm bringing it in for the dealer to look at but I was hoping that I could get an answer from a forum, since I know some dealers are quick to write it off as aftemarket related and sometimes themselves can't give an accurate diagnosis. You are right, it does take the fun away from driving it. It sounds like there's a tire bouncing around loose in my trunk constantly. I don't really here it while cruising on the freeway, but on uneven streets it gets really bad at times. If I found out before you I'll let you know.
post #15 of 15 (permalink) Old 11-16-2013 Thread Starter
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Quote:
Originally Posted by Raider Ritchie View Post
Hey Deuce106, were you ever able to figure out what it was? It sounds like I have the EXACT same problem as you. I have SR springs and the J&M pan hard bar as well, so I'm wondering maybe if the SR springs or bar have something to do with it? I'm bringing it in for the dealer to look at but I was hoping that I could get an answer from a forum, since I know some dealers are quick to write it off as aftemarket related and sometimes themselves can't give an accurate diagnosis. You are right, it does take the fun away from driving it. It sounds like there's a tire bouncing around loose in my trunk constantly. I don't really here it while cruising on the freeway, but on uneven streets it gets really bad at times. If I found out before you I'll let you know.
Yes I got it fixed, it turned out to be a bad combination of sway bar and end links. I replaced them with hellwig sway and end links, and also replaced all of the suspension nuts and bolts at the same time. Clunks are now completely gone.


2012 mustang v6 performance package, power mods: airraid intake, borla s-type exhaust, appearance mods: saleen front grille, hood spears, roush side spliters, 2013 tail lights, retro fitted head lights with led and hid, shorty antena, black deck lid, gt500 steering wheel, oem take off leather seats, retro black shift knob, suspension mods: koni shocks/struts, sr springs, gt500 top mounts, panhard bar, lca.
1994 mustang gt 5.0
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