MR2 Roadster Owners Club

The Workshop => Maintenance, Problems & Troubleshooting => Topic started by: steveash on March 8, 2021, 11:31

Title: Twang!!
Post by: steveash on March 8, 2021, 11:31
Shortly after pulling away out of my drive, my car makes a rather entertaining metallic twang noise. It doesn't sound too worrying but it happens almost every time and only when the car is moved after starting from cold. My best guess it is steering related.

Anyone heard of this before??
Title: Re: Twang!!
Post by: shnazzle on March 8, 2021, 11:48
Quote from: steveash on March  8, 2021, 11:31Shortly after pulling away out of my drive, my car makes a rather entertaining metallic twang noise. It doesn't sound too worrying but it happens almost every time and only when the car is moved after starting from cold. My best guess it is steering related.

Anyone heard of this before??
That's a new one to me. It's not just the brakes binding and breaking loose from the discs?
Title: Re: Twang!!
Post by: Petrus on March 8, 2021, 11:50
Quote from: shnazzle on March  8, 2021, 11:48That's a new one to me. It's not just the brakes binding and breaking loose from the discs?

What sprang to my mind too. Nice rusty weather now.
Title: Re: Twang!!
Post by: J88TEO on March 8, 2021, 12:05
Mine does the same if left for a few days, only when the weather is cold.
Title: Re: Twang!!
Post by: Iain on March 8, 2021, 12:45
M
Quote from: steveash on March  8, 2021, 11:31Shortly after pulling away out of my drive, my car makes a rather entertaining metallic twang noise. It doesn't sound too worrying but it happens almost every time and only when the car is moved after starting from cold. My best guess it is steering related.

Anyone heard of this before??
Mine does exactly the same. Its sounds almost like a spring releasing or something along those lines. I dont think its brake related, but would love to know what it is.

Mine lives in our garage, which is heated, and doesnt get any build up of rust on the brakes. Its only used now and again, but always 'twangs' when backing out of the garage.
Title: Re: Twang!!
Post by: Joesson on March 8, 2021, 13:22
Quote from: Iain on March  8, 2021, 12:45M
Quote from: steveash on March  8, 2021, 11:31Shortly after pulling away out of my drive, my car makes a rather entertaining metallic twang noise. It doesn't sound too worrying but it happens almost every time and only when the car is moved after starting from cold. My best guess it is steering related.

Anyone heard of this before??
Mine does exactly the same. Its sounds almost like a spring releasing or something along those lines. I dont think its brake related, but would love to know what it is.

Mine lives in our garage, which is heated, and doesnt get any build up of rust on the brakes. Its only used now and again, but always 'twangs' when backing out of the garage.


My daily does twang on occasion, when moving off after being parked for some time. I believe this to be the brake shoes ( drum brakes on rear / handbrake) releasing some " sticktion".
My twang would sound different because the drum brake shoes are released/ returned by springs.
PS.
Mine typically occurs when reversing as  I drive onto our driveway and reverse off.
That could open up some debate about the " right way" to enter / exit a drive way and / or a parking space!
Title: Re: Twang!!
Post by: Dev on March 8, 2021, 13:24
I have heard the sound when my car was stock before upgrading to coilovers. I thought the sound was from the spring mounts. Once the car moves the spring vibrates a little and disappears.
Title: Re: Twang!!
Post by: steveash on March 8, 2021, 13:43
I've started something here! Nice to know it's not just mine doing this.

I don't think it is coming from the brakes as like @Iain mine did it after being kept in a dry garage. It isn't the moment of pulling away but probably 5-10 seconds later. It sounds like a spring but I also have coilovers rather than a stock setup.

I wonder if it's the clutch?



Title: Re: Twang!!
Post by: Carolyn on March 8, 2021, 13:55
Braces all tight?
Title: Re: Twang!!
Post by: Gaz mr-s on March 8, 2021, 14:01
Yep, I've heard it from 3 or 4 of them.  In the last couple of years the car was outside & on flat ground, so the handbrake wasn't usually applied. I would reverse, then after a few yards going forward, hear the noise.
Title: Re: Twang!!
Post by: steveash on March 8, 2021, 14:13
Quote from: Carolyn on March  8, 2021, 13:55Braces all tight?

It did it before and after the braces were added.
Title: Re: Twang!!
Post by: Topdownman on March 8, 2021, 14:50
How are your stone guards/disc shrouds?
Title: Re: Twang!!
Post by: steveash on March 8, 2021, 15:06
Quote from: Topdownman on March  8, 2021, 14:50How are your stone guards/disc shrouds?

'Original' condition. That's a thought, something to investigate. I'm not sure why they would make a noise at that moment though.
Title: Re: Twang!!
Post by: Iain on March 8, 2021, 15:30
I need to reverse into the garage next time and see if it still does it just driving straight out.

@Dev it certainly sounds suspension related to me. In the next few weeks im doing a full suspension refresh with OEM parts so will be intersting to see if it cures the issue.
Title: Re: Twang!!
Post by: Dev on March 8, 2021, 16:06
Just know that you will find it once it gets louder and if it does not its a feature.

Title: Re: Twang!!
Post by: shnazzle on March 8, 2021, 16:16
Quote from: Dev on March  8, 2021, 16:06Just know that you will find it once it gets louder and if it does not its a feature.
LOL! 

Reminds me of when we bought our first Seat Leon FR. 
It pulled to the left heavily. 

Took it back to where we bought it from who refused to fix it and said it was a "safety feature". It was meant to keep you alert. Not a word of a lie. We threatened to call the police on them. 
They fixed the issue.
Title: Re: Twang!!
Post by: Joesson on March 8, 2021, 16:24
Quote from: shnazzle on March  8, 2021, 16:16
Quote from: Dev on March  8, 2021, 16:06Just know that you will find it once it gets louder and if it does not its a feature.
LOL!

Reminds me of when we bought our first Seat Leon FR.
It pulled to the left heavily.

Took it back to where we bought it from who refused to fix it and said it was a "safety feature". It was meant to keep you alert. Not a word of a lie. We threatened to call the police on them.
They fixed the issue.


Not heard that one! Had a similar thing with a Vauxhall rep mobile, pulled to the left a lot, garage said it was the road camber.
They fixed it.
Title: Re: Twang!!
Post by: Dev on March 8, 2021, 16:41
Quote from: shnazzle on March  8, 2021, 16:16
Quote from: Dev on March  8, 2021, 16:06Just know that you will find it once it gets louder and if it does not its a feature.
LOL!

Reminds me of when we bought our first Seat Leon FR.
It pulled to the left heavily.

Took it back to where we bought it from who refused to fix it and said it was a "safety feature". It was meant to keep you alert. Not a word of a lie. We threatened to call the police on them.
They fixed the issue.

We actually have a real reason why some cars do actually drift even after multiple alignments. It is due to the crowning of our roads. There is a slight slope on either end for drainage where some cars are more effected to drifting than others. 
 The crowning excuse is also giving by alignment shops for bad alignment jobs.

Title: Re: Twang!!
Post by: Petrus on March 8, 2021, 16:55
Quote from: Dev on March  8, 2021, 16:41We actually have a real reason why some cars do actually drift even after multiple alignments. It is due to the crowning of our roads. There is a slight slope on either end for drainage where some cars are more effected to drifting than others. 

One to remember :-)

Honestly officer, it was not me, it was the crown of the road!

Sir, a good driver accounts for that and enters all corners in proper manner without making an ass of himself while endangering others....

Title: Re: Twang!!
Post by: Dev on March 8, 2021, 17:15
Quote from: Petrus on March  8, 2021, 16:55
Quote from: Dev on March  8, 2021, 16:41We actually have a real reason why some cars do actually drift even after multiple alignments. It is due to the crowning of our roads. There is a slight slope on either end for drainage where some cars are more effected to drifting than others. 

One to remember :-)

Honestly officer, it was not me, it was the crown of the road!

Sir, a good driver accounts for that and enters all corners in proper manner without making an bumbum of himself while endangering others....



 I actually used that excuse when I was pulled over for not holding my lane early in the morning when they are out hunting for drunk drivers.
 The officer believed me or wanted to humor me because I had a good excuse and let me go. I was tried form staying up too late.
Title: Re: Twang!!
Post by: Petrus on March 8, 2021, 18:15
Quote from: Dev on March  8, 2021, 17:15I actually used that excuse when I was pulled over for not holding my lane

That is a bit diffrent here too. We are supposed to stay on/ return to the rhs (UK lhs) lane unless overtaking.
Americans can réally freak out on the autobahn, the twangs ;-)

Title: Re: Twang!!
Post by: Dev on March 8, 2021, 18:48
Quote from: Petrus on March  8, 2021, 18:15
Quote from: Dev on March  8, 2021, 17:15I actually used that excuse when I was pulled over for not holding my lane

That is a bit diffrent here too. We are supposed to stay on/ return to the rhs (UK lhs) lane unless overtaking.
Americans can réally freak out on the autobahn, the twangs ;-)



We have the same thing. The fast lane is generally for passing. If you are holding up traffic on the fast lane you get ticketed in most states even if the person behind you is going over the speed limit. The other cause of accidents is rubber necking to see an accident and distracted driving. Americans are not any different than any country that doesn't have an autobahn. I know many that have driven it without issues but you never hear about them because they drive without incident following the rules of the motorway just like the majority of people you will never hear about. Generally unaware people are in every group and not exclusive. The difference is some make astute observations before engaging.
 
 
Title: Re: Twang!!
Post by: Bossworld on March 8, 2021, 20:11
Back to topic. It's the ABS testing itself.

https://www.spyderchat.com/threads/spring-coil-noise-after-startup.6528/
Title: Re: Twang!!
Post by: Topdownman on March 8, 2021, 20:47
Quote from: Bossworld on March  8, 2021, 20:11Back to topic. It's the ABS testing itself.

https://www.spyderchat.com/threads/spring-coil-noise-after-startup.6528/

Good find!
Title: Re: Twang!!
Post by: steveash on March 8, 2021, 20:49
Quote from: Bossworld on March  8, 2021, 20:11Back to topic. It's the ABS testing itself.

https://www.spyderchat.com/threads/spring-coil-noise-after-startup.6528/

Fantastic, thank you. So it appears my car is operating correctly. Nice to know.
Title: Re: Twang!!
Post by: Topdownman on March 8, 2021, 20:52
Steve, even if your question has been answered, we still expect you to check all the suggestions above!
Title: Re: Twang!!
Post by: Iain on March 8, 2021, 20:52
Well there we go, turns out it was brake related! 😂
Title: Re: Twang!!
Post by: Ardent on March 8, 2021, 21:04
Quote from: Gaz mr-s on March  8, 2021, 14:01Yep, I've heard it from 3 or 4 of them.  In the last couple of years the car was outside & on flat ground, so the handbrake wasn't usually applied. I would reverse, then after a few yards going forward, hear the noise.
Mine does exactly the same. Perfectly normal. Part of abs system.
Title: Re: Twang!!
Post by: Bossworld on March 8, 2021, 21:24
Quote from: Iain on March  8, 2021, 20:52Well there we go, turns out it was brake related! 😂

Yeah, sorry to burst the bubble :) I always used to be overly sensitive to any noise coming from my cars hence I've looked into this one before - https://www.mr2roc.org/forum/index.php?topic=65168.msg764723;topicseen#msg764723
Title: Re: Twang!!
Post by: steveash on March 8, 2021, 22:02
Quote from: Topdownman on March  8, 2021, 20:52Steve, even if your question has been answered, we still expect you to check all the suggestions above!

Don't worry, I'm already thinking of pulling the fuse for the ABS to see if it goes away. If it doesn't I'll be going round the car with a plectrum looking for things to twang!
Title: Re: Twang!!
Post by: Zxrob on March 8, 2021, 23:40
Quote from: steveash on March  8, 2021, 11:31Shortly after pulling away out of my drive, my car makes a rather entertaining metallic twang noise. It doesn't sound too worrying but it happens almost every time and only when the car is moved after starting from cold. My best guess it is steering related.

Anyone heard of this before??

I have the same noise, only happens when I first pull away, put mine down the the clutch pedal assembly(spring), could obviously be wrong though,doesn't happen beyond first pulling off

Rob
Title: Re: Twang!!
Post by: Halls on March 23, 2021, 10:51
Ha! Mine does the same, i was starting to worry it was something wrong.
Title: Re: Twang!!
Post by: shnazzle on March 23, 2021, 13:36
I guess I should worry that I don't hear this....
Title: Re: Twang!!
Post by: Ardent on March 23, 2021, 17:38
Also. If you happen to sit in the car for a while after stopping. You might hear whatever it is un twang as well. I have, but no time reference as to how long.