New lowering springs+rattle=WTF!! - Mustang Evolution

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Old 04-04-2013, 01:02 PM   #1
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New lowering springs+rattle=WTF!!

I lowered my 2012 1.5" with some new SR springs. I wanted to break them in easy so for the first week or so, I drove slow, like 20mph around post(Army), and finally decided to take a long trip. I drove about 100 miles and I started hearing a faint rattling in the rear of my pony. Only between 50-60 mph, though. Could that be them settling in or maybe something loose? Anyone got any ideas?
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Old 04-04-2013, 01:55 PM   #2
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Find the nearest car lift and look

I think this is something your gonna have to look at your self. You need to find a lift to raise the car up and check out what is rattling before tragedy strikes.

It could be just a tail pipe or muffler but why take the chance it is not something coming apart.

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Old 04-04-2013, 01:57 PM   #3
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I did. I can't find anything. I have an after market exhaust and its fine. Rims are fine. Checked it all...
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Old 04-04-2013, 02:22 PM   #4
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Strange

As long as you know nothing is loose and coming apart just drive it and see if it don't fix itself. If it still rattles it could be a loose baffle in a muffler. Rare but known to happen and drive mechanic's crazy looking for it.

A rattle can drive you crazy until you find out what it is. I had a Mini JCW before this Mustang and it had a terrible rattle on the passengers side. ( Not all the time) it drove me batty until I found it never happened when I had a passenger. Was it the passenger seat? NO, Was it the kick panel in the door? NO, It turned out to be the seat belt connection hitting the side panel just enough to rattle if it was not facing away from the panel.

I hope your rattle is this simple and easy to find. If your mustang has the rear seat backs you can lower you need to put them down to hear the rattle better. Have someone ride with you and let them listen.
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Viser stickers to cover ugly yellow warning crap,Aluminum driveshafft and Swarr Bar.
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Old 04-04-2013, 02:27 PM   #5
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I don't have mufflers. I have the Pypes pipe bombs. However, the back seat down idea? ****ing GENIUS! I never thought about that, man. Thanks for that. I'm definitely gonna see if I can't do that to hone the rattle in. Thanks again bro for the advice.
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Old 04-04-2013, 02:27 PM   #6
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Probably not but something to check

Read this> rattling when taking off - The Mustang Source - Ford Mustang Forums

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Old 04-04-2013, 02:28 PM   #7
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Cool, I will right now. Thanks man.
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Old 04-04-2013, 03:39 PM   #8
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I have those springs on my 12 too and no rattle issue or anything bro
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Old 04-04-2013, 04:05 PM   #9
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Not even maybe taking a drive with the music up? It's a really quiet rattle, but all I can think of is my rear axle is gonna fall off. I know that's extreme, but I worry about my baby so much. She's the first brand new car I've bought... It didn't happen at all the last sixty miles of the trip, but I'm still worried. You like them, though? I love the look on my 19" AMR's.
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Old 04-04-2013, 04:47 PM   #10
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Check the end links on the sway bar and the shock bolts, but it sounds like it is an over the axle pipe hitting the suspension. it is lower and things are closer.
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Old 04-04-2013, 04:54 PM   #11
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Good point Siber... I didn't think to check that. Any solutions if that's the issue?
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Old 04-04-2013, 05:27 PM   #12
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I had to cut the OTA pipe about half an inch to slide both sides on my 2010 forward, no more clunk.
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Old 04-04-2013, 07:26 PM   #13
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Did you get an adjustable panhard bar when you lowered it? Or get the car aligned after you did it? Could be the rear came out of alignment.
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Old 04-05-2013, 02:28 AM   #14
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I have a panhard bar. No need to adjust it on a slam. All still is the same. And ummm... The rear is fixed... Doesn't get aligned... Cant be aligned... But yes, I had an alignment done by a professional.
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