Suspension clunk/thump going over bumps - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

SloS14 · 09-13-2013, 08:54 PM

i.e. my driveway has one of those humps, or say a speed bump - especially if the wheel is turned. I can hear and feel a thump in the steering wheel and through the floor board. It's getting increasingly worse. I did a very quick check under the car and didn't find anything.

Would rather fix it myself if possible because the dealer here couldn't fix anything if their lives depended on it.

Before I break down and take it to the dealer, has anyone else experienced something similar?

Dinko · 09-16-2013, 01:25 PM

had a similar issue after i installed RCE Yellow lowering springs. Both my front struts blew out.

Scoobybrz · 09-25-2013, 04:35 AM

Quote:

Originally Posted by SloS14

i.e. my driveway has one of those humps, or say a speed bump - especially if the wheel is turned. I can hear and feel a thump in the steering wheel and through the floor board. It's getting increasingly worse. I did a very quick check under the car and didn't find anything.

Would rather fix it myself if possible because the dealer here couldn't fix anything if their lives depended on it.

Before I break down and take it to the dealer, has anyone else experienced something similar?

Have you figured out the cause? My brz has been making clunking noise when I go over bumps or up a driveway too. The sound is coming from front underneath of the ca.

SloS14 · 09-25-2013, 08:13 AM

Quote:

Originally Posted by Scoobybrz

Have you figured out the cause? My brz has been making clunking noise when I go over bumps or up a driveway too. The sound is coming from front underneath of the ca.

Getting worse, dealer appointment on Friday. I'll update the thread...then again I forget things so if I haven't replied by mid-week next week remind me!

dehydratedH2O · 09-25-2013, 12:29 PM

every time I've heard this noise on a car, it has been a blown strut. when it blows out, even small bumps hit the bump stops, causing the noise.

onepremiere · 09-25-2013, 02:07 PM

check nuts on the bracing under the hood, but do not tighten them anything over 15lbs other wise you will sheer the stud off.

mine were loose and shifting under load. sounded like I had toasted a ball joint.

i added some rubber washers under the brace where it meets the body just in case. haven't heard anything since.

SloS14 · 09-25-2013, 02:31 PM

Quote:

Originally Posted by onepremiere

check nuts on the bracing under the hood, but do not tighten them anything over 15lbs other wise you will sheer the stud off.

mine were loose and shifting under load. sounded like I had toasted a ball joint.

i added some rubber washers under the brace where it meets the body just in case. haven't heard anything since.

Thanks for the tip!, I'll check it out when I get home

Thorpedo · 09-25-2013, 02:55 PM

Sub'd. Have the same problem and mentioned it in another thread.

jadewbj · 09-25-2013, 02:59 PM

I have the same issue, thought it was from all the bushings I did.

SmsAlSuwaidi · 09-26-2013, 09:45 AM

The clunk you are referring to is bare metal rubbing in the trunk, a huge thread already exists about it and using/spraying WD40 fixes it

jadewbj · 09-26-2013, 10:01 AM

Quote:

Originally Posted by SmsAlSuwaidi

The clunk you are referring to is bare metal rubbing in the trunk, a huge thread already exists about it and using/spraying WD40 fixes it

Tried the WD 40 trick and one of the sounds went away but I still have another.

SloS14 · 09-26-2013, 08:22 PM

Mine wasn't the under-hood braces.

RallySport Direct · 09-26-2013, 08:35 PM

I get this in my personal BRZ, but we have not seen it in the shop car. It almost feels like the front lower control arm bushings to me. I check them every time I have the car in the air, and have also poked and prodded just about everything I can think to check and have come up with nothing.

Also, mine has not gotten any worse, but I noticed it around 1.5K miles and I am just over 3K miles now, no suspension mods besides front camber bolts, and Whiteline rear subframe bushings. The noise happened when the car was 100% stock as well.

I almost hope it is the front control arm bushings as I want an excuse to go with the Whiteline Anti Lift Kit haha. Oh and just to be clear, this is not the sound of the rear trunk pop, I have that as well

Thanks,
Rick

Scoobybrz · 09-27-2013, 03:06 AM

Quote:

Originally Posted by RallySport Direct

I get this in my personal BRZ, but we have not seen it in the shop car. It almost feels like the front lower control arm bushings to me. I check them every time I have the car in the air, and have also poked and prodded just about everything I can think to check and have come up with nothing.

Also, mine has not gotten any worse, but I noticed it around 1.5K miles and I am just over 3K miles now, no suspension mods besides front camber bolts, and Whiteline rear subframe bushings. The noise happened when the car was 100% stock as well.

I almost hope it is the front control arm bushings as I want an excuse to go with the Whiteline Anti Lift Kit haha. Oh and just to be clear, this is not the sound of the rear trunk pop, I have that as well

Thanks,
Rick

I was barely over 200 miles when I started to noticed this issue.

09-13-2013, 08:54 PM	#1
SloS14 Senior Member Join Date: Apr 2013 Drives: 2013 FR-S whiteout Location: United States Posts: 726 Thanks: 381 Thanked 652 Times in 256 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Suspension clunk/thump going over bumps i.e. my driveway has one of those humps, or say a speed bump - especially if the wheel is turned. I can hear and feel a thump in the steering wheel and through the floor board. It's getting increasingly worse. I did a very quick check under the car and didn't find anything. Would rather fix it myself if possible because the dealer here couldn't fix anything if their lives depended on it. Before I break down and take it to the dealer, has anyone else experienced something similar?

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09-25-2013, 12:29 PM	#5
dehydratedH2O Member Join Date: Sep 2013 Drives: 2014 BRZ Limited DGM Location: MD/DC Posts: 80 Thanks: 6 Thanked 25 Times in 17 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	every time I've heard this noise on a car, it has been a blown strut. when it blows out, even small bumps hit the bump stops, causing the noise.

09-25-2013, 02:07 PM	#6
onepremiere Junior Member Join Date: Sep 2013 Drives: Space Shuttle Location: Left Coast Posts: 6 Thanks: 0 Thanked 3 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	check nuts on the bracing under the hood, but do not tighten them anything over 15lbs other wise you will sheer the stud off. mine were loose and shifting under load. sounded like I had toasted a ball joint. i added some rubber washers under the brace where it meets the body just in case. haven't heard anything since.

09-25-2013, 02:55 PM	#8
Thorpedo The SquadWhisperer Join Date: Mar 2013 Drives: '13 Ultramarine FR-S (STX) Location: Nova Scotia, Canada Posts: 681 Thanks: 383 Thanked 477 Times in 207 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	Sub'd. Have the same problem and mentioned it in another thread.

09-26-2013, 09:45 AM	#10
SmsAlSuwaidi Boosted Join Date: Feb 2013 Drives: Not a supra....yet Location: Riverside,CA/ Abu Dhabi,UAE Posts: 2,925 Thanks: 487 Thanked 1,203 Times in 812 Posts Mentioned: 90 Post(s) Tagged: 2 Thread(s)	The clunk you are referring to is bare metal rubbing in the trunk, a huge thread already exists about it and using/spraying WD40 fixes it

09-26-2013, 08:22 PM	#12
SloS14 Senior Member Join Date: Apr 2013 Drives: 2013 FR-S whiteout Location: United States Posts: 726 Thanks: 381 Thanked 652 Times in 256 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Mine wasn't the under-hood braces.

09-26-2013, 08:35 PM	#13
RallySport Direct Join Date: Apr 2012 Drives: 2014 Widebody Cosworth FR-S Location: Salt Lake City, Utah Posts: 4,542 Thanks: 205 Thanked 1,199 Times in 554 Posts Mentioned: 38 Post(s) Tagged: 0 Thread(s)	I get this in my personal BRZ, but we have not seen it in the shop car. It almost feels like the front lower control arm bushings to me. I check them every time I have the car in the air, and have also poked and prodded just about everything I can think to check and have come up with nothing. Also, mine has not gotten any worse, but I noticed it around 1.5K miles and I am just over 3K miles now, no suspension mods besides front camber bolts, and Whiteline rear subframe bushings. The noise happened when the car was 100% stock as well. I almost hope it is the front control arm bushings as I want an excuse to go with the Whiteline Anti Lift Kit haha. Oh and just to be clear, this is not the sound of the rear trunk pop, I have that as well Thanks, Rick

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