"Klunk!" One Time Noise When Backing Up

[jmharn]

Hi everyone, this is my first post. I got my 07 red Yaris sedan last week. It has A/T

Every time (I even noticed that at the dealership) I start the engine and start to back up from my driveway, I always hear that one-time "klunk" noise (for a lack of better description).

It only happens once after the engine is started, and it wont happen again until the next time I start the car again.

My first guess is something to do with the transmission???:confused:

[PetersRedYaris]

My auto. doesn't do it...

[cdmyaris]

if it happens again and again. Take it to dealership or Transmission shop.

[polar_white]

I can confirm this, I own a 07 Hatchback LE Auto, and I can hear this "klunk" noise you described here, it's very faint, if you don't pay attention to it it's hardly noticeable. I hear it almost everytime when I back out of my driveway, I only hears it once, and won't hear it again for the rest of the drive. I think it also happens when I go forward too.

I took it to the dealer once, but couldn't replicate the problem to the technician. I have figured out now if I shut off the engine and wait a while, then restart the engine and move the car, it will produce that "klunk" sound.

Well at least now I know it's not just my car, though I really hope this is not a serious issue.

[Toyotech]

if its a click/light clunk its your brake pads/shims shifting...most toyota's do it

[Jem_hadar]

there seems to be such a clunk when i throw my car into reverse (manual transmition) after starting it.

ive not worried about it though, figured it might be nothing or not that unusal. it ONLY happens when going into reverse after starting the car.

[punch]

well for the auto matics, its from parking on any slite slope, any surface thats not level, and not using your emergency brake to hold the car, but relying on the tranny to hold the car...

[polar_white]

well for the auto matics, its from parking on any slite slope, any surface thats not level, and not using your emergency brake to hold the car, but relying on the tranny to hold the car...

I'm pretty sure it happens when I was on a flat surface...

I'm interested to find out more about why brake pads/shims shifting can cause this "klunk" sound.

[Toyotech]

I'm pretty sure it happens when I was on a flat surface...

I'm interested to find out more about why brake pads/shims shifting can cause this "klunk" sound.


because they can shift, theres enough space to make a bit of noise. i have used brake lube on the shims and inserts on highlanders, corolla's, tc's, camry's, avalons, rav4's...and so on from this complaint.

[alhope34]

Our Saturn used to do that too. It is the brake pads, don't worry about the noise at all. The brake pads have to move inside the caliper, otherwise how would the brakes work. Sometimes there is just more room for play, but the pads will never come out or fall out of place in any way. You're perfectly fine.

[saluki12]

[QUOTE=Toyotech;146150]because they can shift, theres enough space to make a bit of noise. i have used brake lube on the shims and inserts on highlanders, corolla's, tc's, camry's, avalons, rav4's...and so on from this complaint.[/QUOTE

Would the brake lube be included on a brake cleaning/adjustment at the dealer?

[Red Horse]

shifting calipers back and forth.

[Shroomster]

because they can shift, theres enough space to make a bit of noise. i have used brake lube on the shims and inserts on highlanders, corolla's, tc's, camry's, avalons, rav4's...and so on from this complaint.

Would the brake lube be included on a brake cleaning/adjustment at the dealer?

if your car's service is given to the oil changer to do ...no; If you request a technician to do it and ask to talk to the tech and explain the problem then most likely they will take the time...

but thats just me talking from 'flat rate' experience

[saluki12]

if your car's service is given to the oil changer to do ...no; If you request a technician to do it and ask to talk to the tech and explain the problem then most likely they will take the time...

but thats just me talking from 'flat rate' experience

Thanks for the replies. I will have them look at it next time I'm in. I've been changing my own oil since the first two changes. Was wondering if I missed anything in all the lost post about this.

[TinyGiant]

mine doesnt clunk but i get a little vibration when backing up tiny bit.. not much

[Doug007]

I seem to recall a post about the ABS resetting causing such a noise.

[gid]

this may be your front pad(s) , our '08 Liftback does this . I'm quite sure it's the front pad on the drivers side , due to the way it's seated . Is annoying :rolleyes: . These cars have a lot of quirks :frown: .

[IsLNdbOi]

I hear this everytime I go into reverse. I hear it too when I change to drive. This is on a new '09 5-door LB...

[tetzyamis]

I have 2009 5-Door LB and it makes that noise once too when I put the transmission to reverse.
I reverse into parking lot, so I only hear it once when I try to backup park my car.

So, when I drive, I start from D, drive like 10 miles, then reverse to park my car, then it makes that noise once. If I go forward one more time and reverse, it won't make that noise. I guess it's not a problem since it's happening to many people, it seems like.

[Tamago]

my xA has done that from day 1.. it's not a clunk as much as it is a "boing" but correct me if you dont' hear a boing noise.

i had a focus group with fellow xA owners back in 2005 and i actually spoke to the designer of the xA (via translator) and asked him what the noise was (even took him for a ride) and no one could tell me what it is.. i personally think it's the E-brake somehow releasing line tension in reverse... do you apply your parking brake when you stop?

[ROCKLAND TOYOTA]

(i just had a parts focus group here) and found an old TSB#TC005-07 which is for a rattle noise while in reverse. not sure if its your problem because you describe a clunk noise but its worth a try.....

[Trilixia]

This is happening to me too. Is it something that I need to worry about?

[stran]

This is normal. All the cars I've driven in the past, manual and auto, has had this noise. I used to know what caused this when I remembered how transmission worked, but I don't remember anymore.

[IsLNdbOi]

I never heard these noises in my '07 LB, my brother's Corolla, my Mom's 4Runner, my Dad's Hyundai Sonata or my sister's Hyundai Accent.

[tetzyamis]

This is normal. All the cars I've driven in the past, manual and auto, has had this noise. I used to know what caused this when I remembered how transmission worked, but I don't remember anymore.

I owned 5 cars before Yaris (2 auto, 2 manual, and 1 CVT), but Yaris is the only car that made this noise.
I hope the noise goes away someday.

[stran]

I heard the clunking noise on the '88 civic manual (especially loud), '88 legend auto, '90 accord auto. Maybe it was normal on older cars?

[Stargate YARlantIS]

there seems to be such a clunk when i throw my car into reverse (manual transmition) after starting it.

ive not worried about it though, figured it might be nothing or not that unusal. it ONLY happens when going into reverse after starting the car.

Mine had the Klunk the first 8 months I had my 07. I drive a M/T 07 LB. I took it to the dealership and they thought I was hearing things, of course it would not make the noise when I was there, now, almost 2 yrs later, I never hear it. I figured it just went away, like it was part of the break in dilly.

B

[tetzyamis]

I seem to recall a post about the ABS resetting causing such a noise.

This interests me, but I can't find the post.
Maybe it got lost from the hack :frown:

I was paying attention to when it makes the clunk noise.
When the car just starts, no clunk when I shift from P to R.
After driving 10 miles, shift from D to R makes clunk noise.
Even if I shift to N and wait a few secs and then shift to R, it still makes clunk noise.
After that one time clunk, it won't clunk again until I drive another 10 miles or so.
If I drive for over 30 miles at once, it won't clunk from shifting D to R.
Weird.

[IsLNdbOi]

When I first turn on the car and go into reverse to back out of my garage, I hear the clunk. Then after backing out of my garage, when I put it into drive I hear the clunk.

I hear the clunk anytime I put it into drive or reverse after it has been sitting for awhile like when getting into it after work, getting into it after being at the mall for a couple of hours, in the morning when I leave for work.

[tetzyamis]

I seem to recall a post about the ABS resetting causing such a noise.
This interests me, but I can't find the post.
Maybe it got lost from the hack :frown:

I found that post.
http://www.yarisworld.com/forums/showthread.php?t=4676&highlight=abs+reset

The noise is very much like this poster in the above link described.
It sometimes is louder than other times like he said too.
But the difference is, mine does not make the noise when the car is started.
It only makes the noise after I drive it for a while.
It, so far, made the noise 100% of the time after I drive it for 10 miles.

As IsLNdbOi said his 2007 LB didn't make this noise but his 2009 LB does, my friend's 2007 LB with auto trans and no ABS does not make this noise.
Maybe it's something to do with ABS.
Mayeb only the ones with auto trans and ABS makes this noise.
I don't know... but the noise is loud enough to bother me.

[Trilixia]

I am going to the dealership on Saturday about this issue (I drive an '07LB).

Should I print out this post for reference? I just don't want them to think that I am hearing things. Just to show that it is not just my car.

[gid]

couldn't hurt . Let us know how you make out . GOOD LUCK

[tetzyamis]

I am going to the dealership on Saturday about this issue (I drive an '07LB).

Should I print out this post for reference? I just don't want them to think that I am hearing things. Just to show that it is not just my car.

Wish you good luck with it.
Did you have this noise since you got the car or did it start just recently?
Do you have ABS on your car?

Showing them this thread might be a good idea.
I would think any additional information will be more help for them.

Mine will be hard to show to the technician since it doesn't make noise if I drive 5 miles or less. It makes noise when I drive 8+ miles.

[gid]

the '03 MATRIX did this and went away . Quite sure it was the front pads . Hopefully it's the same for you .

[tetzyamis]

My wife bought 2009 Yaris 5-Door LB too.
It makes exactly the same noise as mine.
She noticed the noise too and asked me if it's ok.
I told her it's ok because mine makes the same noise too :tongue:

I know my friend's 2007 Yaris LB didn't make this noise.
Maybe this is something to do with ABS that became standard on LB from 2009... :iono:

[SilverBack]

Are you holding the brake all the way down before you shift?

[tetzyamis]

Are you holding the brake all the way down before you shift?

Yes, I tried everything I could think of.
I tried putting the gear into N or R for a few seconds before putting into R also, and even tried putting into P and turn off the engine for a few hours too.

[IsLNdbOi]

I know my friend's 2007 Yaris LB didn't make this noise.
Maybe this is something to do with ABS that became standard on LB from 2009... :iono:

My '07 LB w/ automatic transmission had ABS and EBD and did not make this clunk sound like my '09 LB does. My '09 also has ABS and EBD.

[tetzyamis]

My '07 LB w/ automatic transmission had ABS and EBD and did not make this clunk sound like my '09 LB does. My '09 also has ABS and EBD.

Oh, I see.
I wonder what's making this noise... :confused:

[gid]

brake pads are a possibility .

[IsLNdbOi]

On a brand new car?

[gid]

yes , they could be hanging up . They may need to get seated better . We had that issue with a new '03 MATRIX . Overtime the noise went away , we figure from wear on the pads . We also test drove 3 or 4 new '03 PONTIAC Vibes ( Matrix ) and they all did the same thing ( the MATRIX didn't at 1st , appeared not long after purchase ) . You may want to take it dealer and have it looked at , is free under warranty .

[tetzyamis]

Just FYI for the to be '09 owners.
After 2 weeks, it made noise only sometimes.
After 3 weeks, it stopped making any noise.

[Chupacabra]

I have heard the clunk too.

[IsLNdbOi]

Just FYI for the to be '09 owners.
After 2 weeks, it made noise only sometimes.
After 3 weeks, it stopped making any noise.
This seems to be correct. It's been over a month now since I brought my '09 5-door LB home from the dealer and I don't hear that klunk noise anymore or I may have just gotten used to it.

[Chupacabra]

I have heard it about 3 or 4 times in the 2 weeks that I have had the car.