Dissolved

Sounds like it may be from the rear passenger side of the car. It has happened under the following conditions:

1. First "brake" of the day. Coming to stop sign and pressing the brake usually makes this noise. But after that, it's gone

2. Cruising on cruise control for an extended amount of time. Then having to brake

3. Sudden emergency braking causes this loud clunk as well.

It's a single clunk and it's annoying. Anone else have it or know WTF it is?

woogemooge

interesting...i too had a big clunk couple days ago. it was in the morning...car was still a bit cold. first stop sign out of my garage, i braked a little harder than usual. it might have been ABS, but didn't feel anything on my pedal.

yobri

iTrader: (2)

One time I had to swerve to avoid hitting something, hit the brakes hard while turning the wheel and heard the clunk you are referring to. Upon parking the car, I inspected the car for like five minutes in order to suffice myself that I didn't do any damage.

specialp

It is the abs. the abs does a self test on your first brake at low speeds. Check the manual. In addition, if you brake hard, it comes on.

luke350z

I don't think it's the ABS. I hear the clunk when I enter my alley. It an uphill turn, and when I brake.

syf0n

I don't think it is the ABS either. I have this problem when I slam on my brakes from highspeed as approaching a turn, etc. It is less like the clunk that the ABS makes and more like a deep "POP" sound. It is VERY loud and you can hear it even at highway speed when you hit the brakes. You have to be breaking pretty hard to make it happen.

Grommit

iTrader: (3)

Every day I hear of a new problem with the Z. What have I gotten myself into?!?!

the_bode

Have your dealer check & re-torque the front control arm bolts. This happened to me at around 10,000 miles. Apparently there is a TSB for it.

brgerflipr

ditto. i had the same problem, and that was the fix. also have them re-torque the suspension as well. no more "clunking".

bhobson333

It sounds to me like it's that big owner's manual folder (or maybe something else) clunking around in the storage compartment behind the passenger seat.

Jim Spangler

I am new to the Forum, as of 12-2-03. I joined because I noticed a loud "clunk" when braking. I just turned 6100 miles on the Z and if any car has been babyed, it is this one. In any case the Dealer had no clue to the cause of the problem, however, your input should will be a great educational tool for them. Here is another question. What can you do about the window grease marks? Thanks.

Dissolved

Hi Jim. I'm hoping this noise is normal (read=abs). I'm not totally sure though.

There is an official TSB (technical service bulletin) for the grease streaks. Dealer should know what to do

Here is Nissan North Americas phone number if your dealer gives you a hard time 1-800-647-7261

vincenzobar

I use to get a clunk when eccelerating in 1 and 2. Turned out to be a improper torquing issue in the rear suspension!!

Now i get a clunk when i roll my tires first thing in the morn or after its been sitting for a while. like the brakes needinfg to be released more or they got sticky!! weird but not too much to worry about!

stx

Is it the seat belt locking mechanism? I hear that clunk when I accelerate hard and brake hard. My passengers always complain that the seat belt locks up when it makes that clunk sound.

MySunset350Z

iTrader: (23)

i had that same problem. only i'd get it when braking hard/ accelerating hard/ or just turning hard.

they torqued down the suspension, and noticed that there was some metal to metal contact that wasnt supposed to be there so they took care of it. no noise since.

actually i did hear a noise i few days ago. but it was the roll of electric tape i forgot in the spare tire compartment.

klimekp

i get an occasional clunk from the front passenger side wheel. i've have had it happen when braking, accelerating, and when moving forward or backward with wheels turned all the way. gonna take it to the dealer after the holidays. don't you love how you can read about this stuff on the forum then have the dealer tell you they never heard of such a problem before?

Dissolved

The bad thing is you have to recreate the problem at the dealer if they are going to do anything about it

Clos

i had the same problem with mine. The lower control arm on the passenger side was able to get two wrench turns out of it. now its fine

sunzet

I get the same noise and it only does it when braking for the first time after a long period of driving. If I brake again to see where the noise is coming from it does not do it. It never happens while accelerating.

Lower control arm? Mmm… Is this something easy to fix at home? or I need to go thru the painful process of getting an appointment, waiting a week and then leaving the car at the dealer all day. Sorry for the sarcasm but I just had it with my dealer and the tire feathering problem.

Any info is well appreciated

abogada001

Make sure everything is tight, when I had my calipers painted and sway ares replaced some of the fastening bolts came slightly loose after a few days and I had a similar clunking noise.

Robin