Rubicon Shocks and Springs on Sport S Noise

[Reagan]

I recently installed rubicon shocks and springs on my Sport S JLU. It rides great however it seems to be very loud and it's kind of concerning me. I can't tell if I did something wrong or it's just due to the rubicon springs being stiffer. When I'm driving it will occasionally rattle a bit more than before and if I go over a speed bump too quickly I hear a loud thump. I could be worrying about nothing, but I could use some peace of mind. If anyone has had a similar experience after installing the rubicon shocks and springs on their sport please let me know. And like I mentioned, other than that, it drives great. Just louder.

Thanks in advance,

Jordan

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[Will]

I recently installed rubicon shocks and springs on my Sport S JLU. It rides great however it seems to be very loud and it's kind of concerning me. I can't tell if I did something wrong or it's just due to the rubicon springs being stiffer. When I'm driving it will occasionally rattle a bit more than before and if I go over a speed bump too quickly I hear a loud thump. I could be worrying about nothing, but I could use some peace of mind. If anyone has had a similar experience after installing the rubicon shocks and springs on their sport please let me know. And like I mentioned, other than that, it drives great. Just louder.

Thanks in advance,

Jordan

It shouldn’t be louder unless something is wrong. Perhaps a bolt is loose or a spring isn’t seated correctly and contacting something near by when it compresses.

With the Jeep turned off and parked, try standing on a side step or open a door and stand on the edge of the tub, grab the roll bar and rock the Jeep back and forth. Maybe you can reproduce the noise and get a friend nearby to pinpoint which side it’s coming from. If you can reproduce the sound while the Jeep is sitting still, you should be able to track it down to a loose bolt or a component contacting something nearby. Hope this helps.

 

[BCalvin]

Did you loosen and re-torque the control arms?

They are serrated and bite into the mounts, if too loose they wont work right and if they were not reset they will carry preload.

This all needs to be tightened on the ground.

Before torquing mine i pushed it side to side trying to get track bar measurements and it made all kinds of noise.

It shouldn't make any.

 

[Reagan]

It shouldn’t be louder unless something is wrong. Perhaps a bolt is loose or a spring isn’t seated correctly and contacting something near by when it compresses.

With the Jeep turned off and parked, try standing on a side step or open a door and stand on the edge of the tub, grab the roll bar and rock the Jeep back and forth. Maybe you can reproduce the noise and get a friend nearby to pinpoint which side it’s coming from. If you can reproduce the sound while the Jeep is sitting still, you should be able to track it down to a loose bolt or a component contacting something nearby. Hope this helps.

I just did that and there is no noise. It only happens when I'm driving and hit a bump.. its weird

 

[Reagan]

Did you loosen and re-torque the control arms?

They are serrated and bite into the mounts, if too loose they wont work right and if they were not reset they will carry preload.

This all needs to be tightened on the ground.

No, I didn't do that. Do you think that would fix the problem? I have to get an oil change soon so I may just ask them to take a look at the dealer just in case

 

[BCalvin]

did you use spring compressors or how did you get the springs in?

I can scan the lift instructions but the bushings are carrying pre-load if you did nothing to them.

 

[Reagan]

did you use spring compressors or how did you get the springs in?

I can scan the lift instructions but the bushings are carrying pre-load if you did nothing to them.

No spring compressors, I installed with a friend. Dropped the axle and put the springs in

 

[BCalvin]

You need to neutralize the pre-load in the front and rear control arms with the jeep on the ground.

This might help, the bushings in the stock control arms are all like this.

 

[Reagan]

You need to neutralize the pre-load in the front and rear control arms with the jeep on the ground.

This might help, the bushings in the stock control arms are all like this.

Gotcha. Im gonna take it in to the dealer tomorrow for an oil change and to see if they can take care of that too.
I appreciate the speedy replies!

 

[BCalvin]

I don't think the preload would cause it, but it should be done.

Have the tech diagnose the noise.

 

[entropy]

Gotcha. Im gonna take it in to the dealer tomorrow for an oil change and to see if they can take care of that too.
I appreciate the speedy replies!

Please let me know what they find out. I am having the same issue on the drivers side. Mine knocks if I accelerate really fast from being completely stopped, or if I go over a bump very fast. I took it to a dealer and they gave me a bunch of crap for installing rubi parts and wanted to charge $200 just for taking a look at it. I say f**k it I just wanna find out whats wrong. They couldn't find the issue and wanted to keep the jeep for another day, I didn't pay them and took it back home.

 

[Reagan]

Please let me know what they find out. I am having the same issue on the drivers side. Mine knocks if I accelerate really fast from being completely stopped, or if I go over a bump very fast.

Will do. Going in tomorrow.

 

[Reagan]

I don't think the preload would cause it, but it should be done.

Have the tech diagnose the noise.

Thanks again. I'll let you know what it was when I find out.

 

[Reagan]

I figured out the problem I think. I put the rear shocks on the front and front shocks on the rear.. I think that may be part of the problem.
Gonna fix that tomorrow

 

[Tdkrum5]

Keep us posted. Do you have any pictures and before and after measurements.

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