yet another mystery sound - knocking when car is warm and moving slowly
#1
Newbie
Thread Starter
Join Date: May 2013
Location: Canada
Posts: 95
Likes: 0
Received 0 Likes
on
0 Posts
yet another mystery sound - knocking when car is warm and moving slowly
I get this noise only once the car is warm and has been driven for a while. It is only noticeable at low speeds, mainly braking or in reverse. Nothing else seems affected: steering, braking etc.
From other threads I have tried the following:
-Spray PTFE on the silver part of the dampers.
- checked for lose wheel arch liner
- tighten strut tower brace nuts
I am at the point where the remaining items are a bit out of my skill set and now i have to take it in to the shop. I don't want them to spend forever working on it and not fixing it so i at least want a list of places for them to check first:
- CV re-torqued or replaced
- top hats on the suspension
- upper plate and bearing
- brake shims
I have recorded the noise. http://www.mediafire.com/folder/tgl0...qo/evo_x_noise
The first recording is while driving and then me going into reverse.
The second recording is when parked and I am rocking up and down in my seat. (Ignore the squeaking noise, that is my *** rubbing on the leather.) Most of the time there is no noise when doing this.
Thoughts?
From other threads I have tried the following:
-Spray PTFE on the silver part of the dampers.
- checked for lose wheel arch liner
- tighten strut tower brace nuts
I am at the point where the remaining items are a bit out of my skill set and now i have to take it in to the shop. I don't want them to spend forever working on it and not fixing it so i at least want a list of places for them to check first:
- CV re-torqued or replaced
- top hats on the suspension
- upper plate and bearing
- brake shims
I have recorded the noise. http://www.mediafire.com/folder/tgl0...qo/evo_x_noise
The first recording is while driving and then me going into reverse.
The second recording is when parked and I am rocking up and down in my seat. (Ignore the squeaking noise, that is my *** rubbing on the leather.) Most of the time there is no noise when doing this.
Thoughts?
Last edited by 8OhOh2; Jun 12, 2013 at 11:38 AM.
#3
Newbie
Thread Starter
Join Date: May 2013
Location: Canada
Posts: 95
Likes: 0
Received 0 Likes
on
0 Posts
#4
Evolved Member
iTrader: (1)
Thanks. I'm stumped. The ticking almost sounds like the noise generator for the turn-signal acting up, but that can't be it. My best guess - based mostly on the rocking-in-my-seat file - is that you have the beginnings of the typical front upper-strut-mount clunk. That's rather frequent.
#5
Newbie
Thread Starter
Join Date: May 2013
Location: Canada
Posts: 95
Likes: 0
Received 0 Likes
on
0 Posts
Thanks. I'm stumped. The ticking almost sounds like the noise generator for the turn-signal acting up, but that can't be it. My best guess - based mostly on the rocking-in-my-seat file - is that you have the beginnings of the typical front upper-strut-mount clunk. That's rather frequent.
Well it's in the shop today so we should find out soon enough.
#6
Evolved Member
iTrader: (1)
Unfortunately, if said "shop" is a dealership, your definition of "soon" may need updating. If the knock is a front upper strut-mount starting to go, that is something that dealerships often claim is a normal noise, since corporate doesn't like to replace them for free.
#7
Newbie
Thread Starter
Join Date: May 2013
Location: Canada
Posts: 95
Likes: 0
Received 0 Likes
on
0 Posts
They are claiming the following needs to be replaced:
Problem 1:
4060A290 - STRUT FRONT x2
4060A134 - INSULATOR, FR STRUT x2
4040A077 - SEAT, FR STRUT x2
Problem 2:
3815A208 - SHAFT ASSY, FR AXLE DRIVE, RH x2
3885A009 - NUT, FR AXLE x2
The shaft is covered under warranty so I am going to get that replaced then see how much noise is left over.
Problem 1:
4060A290 - STRUT FRONT x2
4060A134 - INSULATOR, FR STRUT x2
4040A077 - SEAT, FR STRUT x2
Problem 2:
3815A208 - SHAFT ASSY, FR AXLE DRIVE, RH x2
3885A009 - NUT, FR AXLE x2
The shaft is covered under warranty so I am going to get that replaced then see how much noise is left over.
Trending Topics
#9
Former Sponsor
iTrader: (3)
if it's a lounder clunk when you turn, its a bad CV joint
look behind the wheel at the black rubber boots. If they are leaking or you see grease sprayed out of them, then you have lost a CV boot seal, which cause the grease to leak out, which caused the CV joint to clang from excessive wear.
if it clicks louder/faster as you accelerate, then it's a part failure related to rotation in the wheel. So CV joint, axle, bearing, or something stuck in a tire or brake.
look behind the wheel at the black rubber boots. If they are leaking or you see grease sprayed out of them, then you have lost a CV boot seal, which cause the grease to leak out, which caused the CV joint to clang from excessive wear.
if it clicks louder/faster as you accelerate, then it's a part failure related to rotation in the wheel. So CV joint, axle, bearing, or something stuck in a tire or brake.
Last edited by ikt@evoxpod.com; Jun 14, 2013 at 08:39 PM.
#13
Newbie
Thread Starter
Join Date: May 2013
Location: Canada
Posts: 95
Likes: 0
Received 0 Likes
on
0 Posts
I have ordered the top hat(insulator) and seat for the struts on my own. Just waiting for them to come in. As for the warranty axle work the parts have not come in yet. I asked about it today at the stealership and basically they told me that they have no idea when the parts will come in due to the way their system works. They made it clear that it can be a few weeks or over a few months in some cases if back ordered! I am going to call mitsu canada and see if this is normal but WTF!!!!!!!
#14
Evolving Member
hey i was wondering how you went with your car ?
i listened to the sound clips you had, mine really sounds like the first one. i have been battling this issue for a year now and im really thinking its the top insulator/top rubber strut. was it the case for yours ?
i listened to the sound clips you had, mine really sounds like the first one. i have been battling this issue for a year now and im really thinking its the top insulator/top rubber strut. was it the case for yours ?
#15
Newbie
Thread Starter
Join Date: May 2013
Location: Canada
Posts: 95
Likes: 0
Received 0 Likes
on
0 Posts
I had the front axel replaced on warranty. This made very little change to the noise. I now have my preferred garage doing the insulator/seats.