Popping Sound in Rear on hard turns?
07-12-2017, 01:42 AM
#1
Registered Member
Thread Starter
Popping Sound in Rear on hard turns?
Hello all.
I recently had the following installed on my G37xS coupe about two weeks ago.
1. FA 500 6th Generation Coilovers (OEM Style)
2. SPL Front Camber Arms
3. Moog Front End Links
4. SPL Rear Camber Arms
5. SPL Rear End Links
6. Hotchkis front and rear sway bars (installed about 2 months ago).
Today, I noticed that my G37xS rear is making a loud metallic popping sound when I take corners sharply or make U-turns sharply in parking lots. The sound occurs when I take both a left or a right corner hard (or sharp left or right U-turns in a parking lot). The sound is a popping sound and it happens only to the rear (not a creaking, whining, clicking or twang sound). It is a loud pop that is both audible in the car and outside. I can also replicate the popping sound when I drive in slalom style at speeds of 25-30 miles per hour. The popping sound seems to only occur when my G37xS coupe shifts its weight from left to right or right to left. I cannot differentiate if the sound is coming from the left or the right rear. When this occurred, my G37xS was already warmed up and I had been driving on and off for about 2 hours running errands around the city.
The weird thing is once the pop occurs, let say a sharp right turn, I can turn hard rights thereafter and it won't pop. However, if at this point I make a sharp left turn, the popping sound occurs. This is also true if I had made a sharp left turn first instead of a sharp right.
In addition to hearing the pop when taking corners, I did hear the pop once when I was on a mild incline going in reverse out of a parking spot.
When I turn a corner at normal speeds, no popping sound is heard at all. When I drive on the uneven road or go over bumps, no sound is heard either.
Can the sound be from SPL spherical bearings? SPL seems to be noisier than other brands when it comes to suspension parts.
What can be causing the popping sound?
I recently had the following installed on my G37xS coupe about two weeks ago.
1. FA 500 6th Generation Coilovers (OEM Style)
2. SPL Front Camber Arms
3. Moog Front End Links
4. SPL Rear Camber Arms
5. SPL Rear End Links
6. Hotchkis front and rear sway bars (installed about 2 months ago).
Today, I noticed that my G37xS rear is making a loud metallic popping sound when I take corners sharply or make U-turns sharply in parking lots. The sound occurs when I take both a left or a right corner hard (or sharp left or right U-turns in a parking lot). The sound is a popping sound and it happens only to the rear (not a creaking, whining, clicking or twang sound). It is a loud pop that is both audible in the car and outside. I can also replicate the popping sound when I drive in slalom style at speeds of 25-30 miles per hour. The popping sound seems to only occur when my G37xS coupe shifts its weight from left to right or right to left. I cannot differentiate if the sound is coming from the left or the right rear. When this occurred, my G37xS was already warmed up and I had been driving on and off for about 2 hours running errands around the city.
The weird thing is once the pop occurs, let say a sharp right turn, I can turn hard rights thereafter and it won't pop. However, if at this point I make a sharp left turn, the popping sound occurs. This is also true if I had made a sharp left turn first instead of a sharp right.
In addition to hearing the pop when taking corners, I did hear the pop once when I was on a mild incline going in reverse out of a parking spot.
When I turn a corner at normal speeds, no popping sound is heard at all. When I drive on the uneven road or go over bumps, no sound is heard either.
Can the sound be from SPL spherical bearings? SPL seems to be noisier than other brands when it comes to suspension parts.
What can be causing the popping sound?
Last edited by G37xS-Life; 07-12-2017 at 02:19 AM.
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G37xS-Life (07-12-2017)
07-12-2017, 07:07 AM
#3
Registered Member
Thread Starter
07-12-2017, 08:54 AM
#4
Could be coil bind, more common on lowering springs IIRC, but a pop noise is common w/ that issue.
Here's a huge thread on that~
Suspension/Stiffening Another major problem found with certain lowering springs- coil bind. - Subaru Impreza WRX STI Forums: IWSTI.com
Here's a huge thread on that~
Suspension/Stiffening Another major problem found with certain lowering springs- coil bind. - Subaru Impreza WRX STI Forums: IWSTI.com
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G37xS-Life (07-12-2017)
07-12-2017, 03:05 PM
#5
Registered Member
Thread Starter
Could be coil bind, more common on lowering springs IIRC, but a pop noise is common w/ that issue.
Here's a huge thread on that~
Suspension/Stiffening Another major problem found with certain lowering springs- coil bind. - Subaru Impreza WRX STI Forums: IWSTI.com
Here's a huge thread on that~
Suspension/Stiffening Another major problem found with certain lowering springs- coil bind. - Subaru Impreza WRX STI Forums: IWSTI.com
My first thoughts were the end links or the springs. Wouldn't the spring sound more like a twang or some kind of metallic sound oscillation/distortion?
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G37xS-Life (07-14-2017)
07-14-2017, 12:19 AM
#7
Registered Member
Thread Starter
Well, it turned out to be a loose end link bolt. Thanks to everyone who contributed their opinion and knowledge.
