Creaking brake

babis_xo · **December 30, 2011, 02:36:54**

Brakes are behaving a little strange since early summer 2011.

And before Ffoxy shows up in a hurry, suggesting the usual silicon spray

I have to say that last week I was going downwards a scarp ramp with 1st gear thrown in and while touching gently the brake, I heard the same creaking noise as above but this time it lasted as long as I kept my foot steady on the pedal (3-4 sec).
Today I left my car at the dealer who doesn't have a clue. Unfortunately it will be fixed (that is, I hope) next... year.
I'm counting on a replacement car for tomorrow.
Brake master cylinder? something else?

Dazzler · **Reply #1: December 30, 2011, 02:40:53**

That is a strange one...

Nice shoes by the way

(I have a shoe fettish..

)

babis_xo · **Reply #2: December 30, 2011, 02:50:35**

Quote from: Dazzler on December 30, 2011, 02:40:53

Nice shoes by the way (I have a shoe fettish.. )

So, you think it's not a shoe issue

Dazzler · **Reply #3: December 30, 2011, 02:51:51**

Quote from: babis_xo on December 30, 2011, 02:50:35

Quote from: Dazzler on December 30, 2011, 02:40:53
Nice shoes by the way (I have a shoe fettish.. )

So, you think it's not a shoe issue

Hopefully you getting it fixed easily will be a "shoe in" ...

Phil №❶ · **Reply #4: December 30, 2011, 03:20:59**

babis_xo

Is your car Left or right hand drive.

Dazzler · **Reply #5: December 30, 2011, 03:25:14**

Quote from: 847563 on December 30, 2011, 03:20:59

babis_xo

Is your car Left or right hand drive.

Left hand drive (they drive on the right side of the road in Greece) Babis has gone to bed it is 5.24 am over there

see here ...

http://brianlucas.ca/roadside/

Phil №❶ · **Reply #6: December 30, 2011, 03:37:17**

Thanks for that. I was expecting a reply at his convenience. Anyhow, on our RHD cars there is a shaft to transmit the pedal pressure to the LHS master cylinder. My next question was, where does the creaking appear to come from. On our cars it would be easy to identify the right side or the left as the source of the noise, but for a LHD car, pinpointing the noise is going to be more difficult. Listening to the video, it sounds like a coil return spring creak at the 2 points of contact, eg the pedal and presumably the car chassis.

Dazzler · **Reply #7: December 30, 2011, 03:55:21**

You are good with this sort of thing Phil...

Phil №❶ · **Reply #8: December 30, 2011, 04:03:29**

Thanks Dazz,

BTW you helicopter vid will be even more interesting with your latest family addition as well.

Dazzler · **Reply #9: December 30, 2011, 04:08:54**

I have a few that we did while we were at a motel over the last few days but I will do some more before I make a video...

The Kitten is pretty timid so I better not do that ...

rustynutz · **Reply #10: December 30, 2011, 04:21:33**

I used to swoop on my cat all the time with my helicopter, he didn't seem all that fazed and never attacked it which made him no fun at all.....

Surferdude · **Reply #11: December 30, 2011, 08:54:04**

Quote from: babis_xo on December 30, 2011, 02:50:35

Quote from: Dazzler on December 30, 2011, 02:40:53
Nice shoes by the way (I have a shoe fettish.. )

So, you think it's not a shoe issue

Well, if it is, it's not the sole problem.

AlanHo · **Reply #12: December 30, 2011, 09:53:08**

I never cease to be amazed how quickly you guys down under can turn a thread about creaking brakes into yet another Helicopter one.

You must hover about waiting for an opportunity to rotate the subject..................

babis_xo · **Reply #13: December 30, 2011, 11:07:48**

Quote from: surferdude on December 30, 2011, 08:54:04

Quote from: babis_xo on December 30, 2011, 02:50:35
Quote from: Dazzler on December 30, 2011, 02:40:53
Nice shoes by the way (I have a shoe fettish.. )

So, you think it's not a shoe issue
Well, if it is, it's not the sole problem.

I should reconsider whether is an ishoe or two

2i30s · **Reply #14: December 30, 2011, 11:19:38**

that popping noise sounds like the diaphragm in the brake booster.

the brake pedal on babis's car is hooked straight to the booster because its left hand drive,on a right hand drive i30 the brake pedal is hooked to the booster via a rod that runs over to the left hand side of the car,and thats where the booster and master cylinder are.

Phil №❶ · **Reply #15: December 30, 2011, 11:22:35**

Apart from your assessment of the noise, I said the rest in #6.

babis_xo · **Reply #16: December 30, 2011, 11:25:22**

They've just called. My car is ready to go as they didn't hear anything so problem does not exist

Ok, I know about their policy but I would expected at least that they should test it properly for a couple of days.

Quote from: 847563 on December 30, 2011, 03:37:17

... on our RHD cars there is a shaft to transmit the pedal pressure to the LHS master cylinder. My next question was, where does the creaking appear to come from. On our cars it would be easy to identify the right side or the left as the source of the noise, but for a LHD car, pinpointing the noise is going to be more difficult. Listening to the video, it sounds like a coil return spring creak at the 2 points of contact, eg the pedal and presumably the car chassis.

Quote from: 2i30s on December 30, 2011, 11:19:38

that popping noise sounds like the diaphragm in the brake booster. the brake pedal on babis's car is hooked straight to the booster because its left hand drive,on a right hand drive i30 the brake pedal is hooked to the booster via a rod that runs over to the left hand side of the car,and thats where the booster and master cylinder are.

Last time the car was in, they had eliminated the case of being a friction issue so I will point them to this "shaft". Thanks for your suggestions.
I have to go over there now. Update will come later on.

Phil №❶ · **Reply #17: December 30, 2011, 11:30:26**

Don't bother, you don't have this shaft. Why not show them the video & see if they think it doesn't exist after they see it.

Keith · **Reply #18: December 30, 2011, 11:31:36**

Assuming the brake fluid level is correct, & also assuming the brakes have no other defect in operation, if the noise is constant even when the braking foot is not moving, I'd suspect a brake servo issue.

Silicone spray lubricant is not the solution here

2i30s · **Reply #19: December 30, 2011, 11:51:14**

Quote from: 847563 on December 30, 2011, 11:22:35

Apart from your assessment of the noise, I said the rest in #6.

so great minds think alike.

asathorny · **Reply #20: December 30, 2011, 12:10:42**

Quote from: Ffoxy on December 30, 2011, 11:31:36

Assuming the brake fluid level is correct, & also assuming the brakes have no other defect in operation, if the noise is constant even when the braking foot is not moving, I'd suspect a brake servo issue.

Silicone spray lubricant is not the solution here

Awe come on Ffoxy, your never gonna make a million (or another million) with that sort of remark. Silicon spray must have some part to play

Keith · **Reply #21: December 30, 2011, 12:16:45**

Quote from: asathorny on December 30, 2011, 12:10:42

Quote from: Ffoxy on December 30, 2011, 11:31:36
Assuming the brake fluid level is correct, & also assuming the brakes have no other defect in operation, if the noise is constant even when the braking foot is not moving, I'd suspect a brake servo issue.

Silicone spray lubricant is not the solution here

Awe come on Ffoxy, your never gonna make a million (or another million) with that sort of remark. Silicon spray must have some part to play

Pffft....

eye30 · **Reply #22: December 30, 2011, 17:14:12**

Quote from: Dazzler on December 30, 2011, 03:25:14

Quote from: 847563 on December 30, 2011, 03:20:59
babis_xo

Is your car Left or right hand drive.

Left hand drive (they drive on the right side of the road in Greece) Babis has gone to bed it is 5.24 am over there

Ok here is my take on this.

I wonder whether there is a rod connected to the pedal which goes from the left side to the right side of the car then connects to the brake unit in the engine area on the right side.

This rod is catching on something which is causing the noise.

I say this as on some cars, depending on the placement of the brake unit which isn't directly behind the pedal, a connecting rod is needed to allow the pedal on the left to connect to the unit on the right.

Just an idea to check out.

babis_xo · **Reply #23: January 02, 2012, 13:08:30**

Quote from: 847563 on December 30, 2011, 11:30:26

Why not show them the video & see if they think it doesn't exist after they see it.

I didn't have to as we were finally able to confirm the noise. No suggestion made from them but they assured me that it's nothing serious (???) so I picked up the car (after I put them to write down "brakes checked, no problem found" on the service receipt

They told me to bring the car in again tomorrow.

babis_xo · **Reply #24: January 02, 2012, 13:31:55**

Quote from: eye30 on December 30, 2011, 17:14:12

I wonder whether there is a rod connected to the pedal which goes from the left side to the right side of the car then connects to the brake unit in the engine area on the right side.

This rod is catching on something which is causing the noise.

I say this as on some cars, depending on the placement of the brake unit which isn't directly behind the pedal, a connecting rod is needed to allow the pedal on the left to connect to the unit on the right.

Just an idea to check out.

Douze point /2. There is a rod.

Quote from: Ffoxy on December 30, 2011, 11:31:36

Assuming the brake fluid level is correct, & also assuming the brakes have no other defect in operation, if the noise is constant even when the braking foot is not moving, I'd suspect a brake servo issue.

Another douze point /2

A dealer's mechanic suggested unofficially that the noise is caused by the rod or the servo (I also believe the second)

Quote from: Ffoxy on December 30, 2011, 11:31:36

Silicone spray lubricant is not the solution here

They told me that they did a lubricant spraying on the pedal

babis_xo · **Reply #25: April 21, 2012, 17:44:14**

Brake pedal has developed one more, related to the 1st but even worst sound

Since my dealer had no clue (besides he wouldn't admit this noise is a problem at all), I decided to visit another dealer just before Easter.
They replaced the stop-light button behind the pedal but noise reappeared 10min later (besides it happens after a while when driving in town, esp. in hot weather)

It drives me sooo crazy that I don't want to use the brake anymore... +

Dazzler · **Reply #26: April 21, 2012, 22:41:19**

How annoying Babis .. It sounds like one of your side mirrors has broken off and is dangling by a wire

(have you checked this)

Phil №❶ · **Reply #27: April 22, 2012, 10:27:35**

2 things to check.

Can you have someone listen inside the engine bay at the brake booster, to see if the creak is there.

also check / lubricate the pivot point of the brake pedal and the return spring particularly where it contacts the brake pedal and the body of the car.

Shambles · **Reply #28: April 22, 2012, 10:32:10**

Sounded like a spring to me

Dazzler · **Reply #29: April 22, 2012, 10:43:36**

Quote from: Shambles™ on April 22, 2012, 10:32:10

Sounded like a spring to me

I don't think it is that .. Babis hasn't had a spring in his step for a while