Noise coming from the rear - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

240sxvaj · 09-07-2010, 12:45 AM

I keep on hearing a thump noise every time i go over a dip and it sounds like its my floor jack hitting my driver side rear fender from the inside but when i took out the floor jack it still makes the noise. i am currently running megan track coilovers on my 91 fastback if that matters.

do i need new bushing?

i was thinking its my bushing since its a old car.

anyone know?

Thanks!

blake110491 · 09-07-2010, 12:18 PM

I was having the same problem and yet to get a straight answer

EDT007 · 09-07-2010, 12:55 PM

You can check to see if you have slop in your subframe bushings. It's a pretty common issue on any S-chassis.

240sxvaj · 09-07-2010, 01:09 PM

Quote:

Originally Posted by EDT007

You can check to see if you have slop in your subframe bushings. It's a pretty common issue on any S-chassis.

i was thinking it was the subframe bushing. planning on getting the Aluminum subframe bushing to see if that would help

zylvia213 · 09-07-2010, 03:19 PM

sounds like subframe bushings... but you should just go ahead and check all your suspension in the rear. Also check to see if there is no loose bolts or nuts including the coilovers. Also check your exhaust. Good luck

240sxvaj · 09-09-2010, 06:16 PM

Quote:

Originally Posted by zylvia213

sounds like subframe bushings... but you should just go ahead and check all your suspension in the rear. Also check to see if there is no loose bolts or nuts including the coilovers. Also check your exhaust. Good luck

the last time it was making that noise i was from the front and turned out it was my megan coilovers so i had to tighten them. after that the noise went away. now the rear is doing it so i tighten the coilvers up too and its still making the same now. im just gonna purchase me a bushing kit along with my aluminum bushings.

ArtieB · 09-23-2010, 11:30 PM

My friends also has megan coilovers had the same problem and it was the pillow mounts
(at the top of the coilover)

I LUV MY S13 · 09-23-2010, 11:35 PM

most likely the coils

240sxvaj · 10-01-2010, 01:32 AM

Quote:

Originally Posted by ArtieB

My friends also has megan coilovers had the same problem and it was the pillow mounts
(at the top of the coilover)

do i use a alley wrench to hold it and then tighten the bolt in the middle?

theboy · 10-01-2010, 08:19 AM

i had the same issue a long time ago. jack up the car see if one of your wheels drops enough so that the spring is loose, if it does drop enough you need new struts/coilovers, yours is blown. and what your hearing is the spring settling back in the perch.

or you have a rusty/worn out car and you hear the chassis flexing at the shock towers (seen that issue, never had it)

could also be a number of other things as well. how low is your car? think maybe your scraping or bouncing off the bump stop since it only happens in "dips"

bb4_96 · 10-01-2010, 08:35 AM

i just like the thread title

240sxvaj · 10-02-2010, 12:43 AM

Quote:

Originally Posted by theboy

i had the same issue a long time ago. jack up the car see if one of your wheels drops enough so that the spring is loose, if it does drop enough you need new struts/coilovers, yours is blown. and what your hearing is the spring settling back in the perch.

or you have a rusty/worn out car and you hear the chassis flexing at the shock towers (seen that issue, never had it)

could also be a number of other things as well. how low is your car? think maybe your scraping or bouncing off the bump stop since it only happens in "dips"

hummmmm! shouldnt i leak oil from the coilovers if it is blown? i highly doubt these are blown because i had these for nomore than 25,000 miles.

btw, i had the same noise in the front and turns out the nut holding the coilvers was loose and i tighten it up with an alley wrench and a monkey wrench. from that day on the noise never came back. i think its the same problem but when i try to tighten it up it feels like its not getting any tighter.

my rear is low where the rear fender slightly cover my tires. i dont think its too low because i just started hearing this noise about 2 months now.

xxoreolovexx · 10-02-2010, 10:53 AM

I had the same problem on my 14. i have pbmax coils. I actually picked up a bushing kit and replaced all my bushing (that weren't replaced with pillow ball mounts yet) and with new sub frame and collars it all went away.

240sxvaj · 10-05-2010, 05:48 PM

Quote:

Originally Posted by xxoreolovexx

I had the same problem on my 14. i have pbmax coils. I actually picked up a bushing kit and replaced all my bushing (that weren't replaced with pillow ball mounts yet) and with new sub frame and collars it all went away.

im thinking its my bushings too since its a old ass car.

i will replace all my bushing when i do my 5 lug

09-07-2010, 12:45 AM	#1
240sxvaj Nissanaholic! Join Date: Dec 2007 Location: So-Cal! Age: 31 Posts: 2,192 Trader Rating: (38) Feedback Score: 38 reviews	Noise coming from the rear I keep on hearing a thump noise every time i go over a dip and it sounds like its my floor jack hitting my driver side rear fender from the inside but when i took out the floor jack it still makes the noise. i am currently running megan track coilovers on my 91 fastback if that matters. do i need new bushing? i was thinking its my bushing since its a old car. anyone know? Thanks!

09-07-2010, 03:19 PM	#5
zylvia213 Nissanaholic! Join Date: Aug 2007 Location: LOST ANGELES Posts: 1,975 Trader Rating: (36) Rides Gallery: zylvia213 Feedback Score: 36 reviews	sounds like subframe bushings... but you should just go ahead and check all your suspension in the rear. Also check to see if there is no loose bolts or nuts including the coilovers. Also check your exhaust. Good luck __________________

09-23-2010, 11:35 PM	#8
I LUV MY S13 Post Whore! Join Date: Dec 2008 Location: Norwalk, Los Angeles Age: 32 Posts: 3,349 Trader Rating: (35) Rides Gallery: I LUV MY S13 Feedback Score: 35 reviews	most likely the coils __________________ -Jorge

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09-07-2010, 12:18 PM	#2
blake110491 BANNED Join Date: Aug 2010 Location: Plano Age: 29 Posts: 189 Trader Rating: (1) Feedback Score: 1 reviews	I was having the same problem and yet to get a straight answer

09-07-2010, 12:55 PM	#3
EDT007 Zilvia Addict Join Date: Feb 2008 Location: NJ Age: 39 Posts: 617 Trader Rating: (8) Feedback Score: 8 reviews	You can check to see if you have slop in your subframe bushings. It's a pretty common issue on any S-chassis.

09-23-2010, 11:30 PM	#7
ArtieB Join Date: Sep 2008 Location: LI,NY Posts: 34 Trader Rating: (0) Feedback Score: 0 reviews	My friends also has megan coilovers had the same problem and it was the pillow mounts (at the top of the coilover)

10-01-2010, 08:19 AM	#10
theboy Zilvia Addict Join Date: Apr 2010 Location: Chicago Age: 32 Posts: 618 Trader Rating: (10) Feedback Score: 10 reviews	i had the same issue a long time ago. jack up the car see if one of your wheels drops enough so that the spring is loose, if it does drop enough you need new struts/coilovers, yours is blown. and what your hearing is the spring settling back in the perch. or you have a rusty/worn out car and you hear the chassis flexing at the shock towers (seen that issue, never had it) could also be a number of other things as well. how low is your car? think maybe your scraping or bouncing off the bump stop since it only happens in "dips"

10-01-2010, 08:35 AM	#11
bb4_96 Zilvia Addict Join Date: Jan 2006 Location: Under my car Posts: 785 Trader Rating: (4) Feedback Score: 4 reviews	i just like the thread title

10-02-2010, 10:53 AM	#13
xxoreolovexx Zilvia Member Join Date: Mar 2010 Location: nj Age: 36 Posts: 184 Trader Rating: (2) Feedback Score: 2 reviews	I had the same problem on my 14. i have pbmax coils. I actually picked up a bushing kit and replaced all my bushing (that weren't replaced with pillow ball mounts yet) and with new sub frame and collars it all went away.