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Suspension making popping sounds after lowering

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Old 10-15-2010, 10:13 AM
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Low_MPG_Z
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Default Suspension making popping sounds after lowering

Hey guys, I just lowered my car 1.2" and now the front right is making popping noises. I looked and everything looks fine, even tried compressing the suspension with a jack to see if I could find were the noise is coming from.

I only does it when I go over a bump (speed bump, uneven road, pot hole) at lower speeds. It will do it at higher speeds but not like it does at lower speeds.

I'm suspecting it might be the actual strut, I do not want to tear everything down if I do not have to.

If anybody knows what is wrong or how to fix it I would greatly appreciate any info.

Thanks
Old 10-15-2010, 10:16 AM
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terrasmak
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`Could be your sway bar end link binding.
Old 10-15-2010, 10:22 AM
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Low_MPG_Z
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would it be visible by just looking at it?
Old 10-15-2010, 02:21 PM
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thinking
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If you temporarily disconnect one end of the sway bar / end link (and zip tie it, so it does not go all over the place) and go for a quick test drive, you can determine if it was binding or not
Old 10-16-2010, 07:00 AM
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black_03
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Originally Posted by Low_MPG_Z
Hey guys, I just lowered my car 1.2" and now the front right is making popping noises. I looked and everything looks fine, even tried compressing the suspension with a jack to see if I could find were the noise is coming from.

I only does it when I go over a bump (speed bump, uneven road, pot hole) at lower speeds. It will do it at higher speeds but not like it does at lower speeds.
I'm suspecting it might be the actual strut, I do not want to tear everything down if I do not have to.

If anybody knows what is wrong or how to fix it I would greatly appreciate any info.

Thanks
Same here, what are you lowered on?
Old 10-16-2010, 08:01 AM
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Low_MPG_Z
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Originally Posted by black_03
Same here, what are you lowered on?
Tanabe Nf210
Old 10-16-2010, 08:41 AM
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03threefiftyz
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Sounds like end links to me....
Old 10-16-2010, 09:20 AM
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Low_MPG_Z
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Originally Posted by thinking
If you temporarily disconnect one end of the sway bar / end link (and zip tie it, so it does not go all over the place) and go for a quick test drive, you can determine if it was binding or not
I did that and the popping still continued.

Could the bushings been damaged in the process of lowering the car? I say that because in order to remove the strut the control arm had to be pushed down to a good bit.
Old 10-16-2010, 09:47 AM
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Low_MPG_Z
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Theory #2: Could the actual spring be making the noise (ie: its not sitting properly on the upper rubber mount and is moving around) trying to settle out.

Just throwing that out
Old 10-16-2010, 12:55 PM
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tumzilla
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is it a knocking or loud popping sound?
Old 10-16-2010, 03:51 PM
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Low_MPG_Z
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Originally Posted by tumzilla
is it a knocking or loud popping sound?
popping sound
Old 02-07-2011, 03:59 PM
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SuperGood
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OP, any updates?

I lowered mine on Eibach Pro Kit and it's making the same popping noises. It's gotten worse after a few weeks and now if I just turn my steering wheel it'll pop.
Old 02-07-2011, 04:51 PM
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tyau
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Originally Posted by 03threefiftyz
Sounds like end links to me....
Sounds like endlinks to me too.
Old 02-07-2011, 05:28 PM
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Sn8keEyez
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Did you replace A Arms with SPC or are you still on stock A Arms. If replaced check this: https://my350z.com/forum/brakes-and-...-vs-spl-2.html. And do some searches will lead you to more if this is the case.
Old 02-08-2011, 10:36 AM
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scrantonz33
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i had the same issue when i swapped springs same springs as yours, when i jacked up the car grabed the bottom of the wheel and lifted up i saw that the nut on the top plate that holds the spring on wasnt tightened all the way. try giving it a try when ever i hit a bumb it would pop like your saying. but again it may not be whats wrong.
Old 02-08-2011, 11:10 AM
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SuperGood
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I only replaced the springs, no A-Arms. I did a quick inspection last weekend and did not notice any loose bolts/nuts. I'll look again when I have more time, thanks for the input.
Old 02-08-2011, 11:43 AM
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beezee
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Originally Posted by scrantonz33
i had the same issue when i swapped springs same springs as yours, when i jacked up the car grabed the bottom of the wheel and lifted up i saw that the nut on the top plate that holds the spring on wasnt tightened all the way. try giving it a try when ever i hit a bumb it would pop like your saying. but again it may not be whats wrong.
Exactly what I was going to say. You can't always tell the nut is not tight just by looking at it. If you dont have a hollow thread tube like the D-Specs you can give it a "little" zip with an impact wrench. I mean "little"
OOPs, I just noticed you posted this back in october. I guess you got it fixed already

Last edited by beezee; 02-08-2011 at 11:45 AM.
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