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Discussion Starter · #1 ·
Hello All, I have a 2014 JKU sport with a 2.5in terraflex lift on 35s. I recently went on a trail that was 50 miles of rutted/gravel awesomeness. After that trip, I now have a metal banging noise from the front passenger wheel well area. I took a mallet and started hitting components and noticed the coil spring seems a little loose and makes a metal clanking sound just by lightly tapping it. I also have JCR inner liners that make a noise as well. I plan on removing the liner and taking it for a spin to see if that cuts down on the noise but Im concerned about the coil spring.

How can the coil spring be loose? Shouldn't the weight of the jeep keep that tight? I checked the clocking, it appears the end of the coil is by the stop on the bottom and the top appears to still have the rubber isolator intact.

any ideas?

thanks
 

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With the weight of the Jeep (or a quarter of it) on the coil spring it should not be loose. In fact, typically it is under a great deal of tension. But hitting a coil spring will make a funny noise, it is after all a spring.
I would look for marks, places where the paint has worn off. That can indicate metal on metal contact. Also, check the shock. Make sure the shock is firmly mounted and has no free movement by hand.
 

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Do you disconnect your sway bar end links when you go offroad? If no, it's possible for the bar to hit the springs during articulation. If yes, did you do something to hold the bar and links up and away from the springs? (I use bunji cords myself). Before understanding that I needed to disconnect both sides, I was always hitting the springs which make obvious noises. I can see paint missing on the springs. I got that too from when I'd fail to disconnect or keep the bar secure.
 

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The end of the front spring should be facing the rear in the little groove, try spinning around 180 degrees and see if it locks in place.
 

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The end of the front spring should be facing the rear in the little groove, try spinning around 180 degrees and see if it locks in place.
he is in the groove on the passenger side I can see it in the photo. passenger side the slot is towards the front driver the back.
 

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he is in the groove on the passenger side I can see it in the photo. passenger side the slot is towards the front driver the back.
Completely forgot about that, double checked to make sure I was paying attention when I installed my springs and luckily my head was not in my butt that day. Any theories as to why 1 points forward and the rest point rear?
 

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Completely forgot about that, double checked to make sure I was paying attention when I installed my springs and luckily my head was not in my butt that day. Any theories as to why 1 points forward and the rest point rear?
just to confuse us :).
 
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Discussion Starter · #9 ·
With the weight of the Jeep (or a quarter of it) on the coil spring it should not be loose. In fact, typically it is under a great deal of tension. But hitting a coil spring will make a funny noise, it is after all a spring.
I would look for marks, places where the paint has worn off. That can indicate metal on metal contact. Also, check the shock. Make sure the shock is firmly mounted and has no free movement by hand.
Hey Guzzimoto, when comparing it to the driver side, the spring moves slightly when you hit it with the mallet and makes a metallic rattle noise whereas the driver side is solid and makes a thud noise.


Do you disconnect your sway bar end links when you go offroad? If no, it's possible for the bar to hit the springs during articulation. If yes, did you do something to hold the bar and links up and away from the springs? (I use bunji cords myself). Before understanding that I needed to disconnect both sides, I was always hitting the springs which make obvious noises. I can see paint missing on the springs. I got that too from when I'd fail to disconnect or keep the bar secure.
For this particular trip I did not disconnect the end links, it was mostly a hard packed, rutted, jarring road.


The end of the front spring should be facing the rear in the little groove, try spinning around 180 degrees and see if it locks in place.
Hello Bbortko, like jadmt pointed out, the passenger side stop is facing the front and the driver side stop is facing the back. I did go back out and recheck the driver side, it is actually about 1/4 inch from the stop where the passenger side is flush.
 

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:welcome: to the Forum..:wavey:
 

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Completely forgot about that, double checked to make sure I was paying attention when I installed my springs and luckily my head was not in my butt that day. Any theories as to why 1 points forward and the rest point rear?
Probably so they can use the same spring perch on both sides.

Sent from my SM-G970U1 using Tapatalk
 

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Discussion Starter · #13 ·
so just a quick update.. I was on my way to an offroad shop to have them take a look and I no longer hear the banging noise. I'm beginning to think a rock may have kicked up and got trapped in one of the skid plates and was bouncing around when hitting bumps.
 

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I also get a little metallic noise when I'm driving, particularly when I hit bumps or gravel. And I know exactly why it happens:

There is some variation in how far down the exhaust crossover pipe hangs. Mine hangs a little low and sometimes makes light contact with my skid plate. If it bothers you enough, you can use some washers to drop the skid down a little, but I don't bother.
 

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I also get a little metallic noise when I'm driving, particularly when I hit bumps or gravel. And I know exactly why it happens:

There is some variation in how far down the exhaust crossover pipe hangs. Mine hangs a little low and sometimes makes light contact with my skid plate. If it bothers you enough, you can use some washers to drop the skid down a little, but I don't bother.
Could also be a broken shock mount stud. I have had this cause a rattling when hitting bumps in both my 2000 and 2014 wranglers. Both times in the rear upper shock mount. Easy $2 fix but about a half hour in time. Jack up at the bumper to remove tension on the shock, remove the 4 bolts securing the shocks and replace the stud then go ahead and change the bushing while you are at it. I tried re-using my bushing once only to have the chewed up old one slip off after 20 miles and had to re-do the whole job...
 
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