[Chops96]

Hi I have had this noise for about a year now always wondered what it was. I have a Corsa Black Edition 1.4T 118hp
Current Mods are as follows:
Ram Air Induction Cone Filter
Forge Motorsport Blow Off Valve
Turbo Smart Boost Gauge

The noise occurs when one of the following happens:
When the engine is really hot on tick over.
When the A/C is on.
When the engine is hot and the ignition is turned off.

It sounds a little like a belt however it’s not very loud and with the noise being there for that time I would imagine it should of got worse into a typical belt squeal by now.
It can’t be heard from inside the car unless the drivers side window is down. I don’t think it’s to do with the A/C as I never really use it till summer and it still makes the noise when the engine is hot or being turned off. Il post YouTube links, there is no video as I used voice memos but the audio is all that matters I suppose

Anyone know what this could be?
Audio recorded near air filter in engine bay.

Engine tickover:

Engine Shutdown

 

[everson38]

Hi I have had this noise for about a year now always wondered what it was. I have a Corsa Black Edition 1.4T 118hp
Current Mods are as follows:
Ram Air Induction Cone Filter
Forge Motorsport Blow Off Valve
Turbo Smart Boost Gauge

The noise occurs when one of the following happens:
When the engine is really hot on tick over.
When the A/C is on.
When the engine is hot and the ignition is turned off.

It sounds a little like a belt however it’s not very loud and with the noise being there for that time I would imagine it should of got worse into a typical belt squeal by now.
It can’t be heard from inside the car unless the drivers side window is down. I don’t think it’s to do with the A/C as I never really use it till summer and it still makes the noise when the engine is hot or being turned off. Il post YouTube links, there is no video as I used voice memos but the audio is all that matters I suppose

Anyone know what this could be?
Audio recorded near air filter in engine bay.

Engine tickover:

Engine Shutdown

Hey Pal,

Sorry to hear of problems. If you watch this video it seems this youtiber had same issue

But it maybe a simple fix with sparkplug if you watch this video:

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[Chops96]

Hey Pal,

Sorry to hear of problems. If you watch this video it seems this youtiber had same issue

But it maybe a simple fix with sparkplug if you watch this video:

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Thanks for replying I have checked the videos out it definitely sounds like jesse’s problem and il have to check my spark plugs too but I don’t think I have a spark plug socket can a regular one be used if so what size?

 

[everson38]

Thanks for replying I have checked the videos out it definitely sounds like jesse’s problem and il have to check my spark plugs too but I don’t think I have a spark plug socket can a regular one be used if so what size?

You can use a regular socket. A spark plug socket is nothing more that a normal socket BUT it has a rubber insert inside to grip the spark plug to pull it out. You can use a normal socket but for a spark plug it needs to be a 'Deep' socket. Sockets come in two builds either Deep or Shallow (see pic).The size you will need is a 16mm Deep socket (6sided) if you have it. Or if you are going to order one of you type in spark plug socket set 6 sided, they usually come in a set of 3 containing sizes 16mm, 18mm and 21mm as they are the most common across multiple cars.

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[Chops96]

You can use a regular socket. A spark plug socket is nothing more that a normal socket BUT it has a rubber insert inside to grip the spark plug to pull it out. You can use a normal socket but for a spark plug it needs to be a 'Deep' socket. Sockets come in two builds either Deep or Shallow (see pic).The size you will need is a 16mm Deep socket (6sided) if you have it. Or if you are going to order one of you type in spark plug socket set 6 sided, they usually come in a set of 3 containing sizes 16mm, 18mm and 21mm as they are the most common across multiple cars.

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Thanks man I really appreciate this! I should have a deep 16mm socket I will have a look at my spark plugs today!

 

[Chops96]

Thanks man I really appreciate this! I should have a deep 16mm socket I will have a look at my spark plugs today!

so I went to check my crankcase breather filter apparntly that can make the noise too. there’s no splits.

Went to check my spark plugs got the coil pack off and then realised I didn’t have a deep 16mm socket only 15mm and 17mm in my set 😂😩 so ordered one from Halfords il pick up tonight and have another look tomorrow. Il update then!

 

[everson38]

so I went to check my crankcase breather filter apparntly that can make the noise too. there’s no splits.

Went to check my spark plugs got the coil pack off and then realised I didn’t have a deep 16mm socket only 15mm and 17mm in my set so ordered one from Halfords il pick up tonight and have another look tomorrow. Il update then!
View attachment 20335

Lol you live and learn - atleast you have done most of the work. Keep us posted on how you get on tomorrow.

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[Chops96]

Lol you live and learn - atleast you have done most of the work. Keep us posted on how you get on tomorrow.

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Yeah I know oh well aha part off the process😂 So all my spark plugs were tight I took them all out anyways to check condition they all still looked brand new from my service 4 months ago so greased up the threads and put them back.
Went for a drive and after the engine is hot the noise is still there! And in shutdown

so unfortunately neither of the videos fixed my problem :/ I don’t think it’s affecting the engine I hope. The it just concerns me abit especially as I would like to push this car to 280bhp-300bhp in the end!

thanks for your help man!! Not sure what else to try

 

[everson38]

Yeah I know oh well aha part off the process So all my spark plugs were tight I took them all out anyways to check condition they all still looked brand new from my service 4 months ago so greased up the threads and put them back.
Went for a drive and after the engine is hot the noise is still there! And in shutdown

so unfortunately neither of the videos fixed my problem :/ I don’t think it’s affecting the engine I hope. The it just concerns me abit especially as I would like to push this car to 280bhp-300bhp in the end!

thanks for your help man!! Not sure what else to try

Well it comes down to if you want to spend abit of money , I would personally take it to a vauxhall dealership or vauxhall specialist and pay for a diagnosis and just have the answer. Because it could be more serious and cost more in the long run. If you read the comments on that jesse youtiber video you may get some ideas. You may want also post your issues in the Vauxhall Owners Network forum to try get some more opinions.

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[Chops96]

Well it comes down to if you want to spend abit of money , I would personally take it to a vauxhall dealership or vauxhall specialist and pay for a diagnosis and just have the answer. Because it could be more serious and cost more in the long run. If you read the comments on that jesse youtiber video you may get some ideas. You may want also post your issues in the Vauxhall Owners Network forum to try get some more opinions.

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I think it’s definitely worth thinking about il do some more research and if I can’t find the answer il have to bite the bullet and go to Vauxhall

thanks for your help man it’s much appreciated!

 

[everson38]

I think it’s definitely worth thinking about il do some more research and if I can’t find the answer il have to bite the bullet and go to Vauxhall

thanks for your help man it’s much appreciated!

Yeah I know it's not great going a dealer (don't forget to look at specialist ) bit remember if you can find answer you should be able to bring it back here and get more answers and still save.yourself alot of money doing it yourself compared to.others who are have to just go dealers for everything.

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[everson38]

Just had a thought, not sure how mechanical minded you are, but if you can removal the alternator belt, and then start the car you can see.if it's anything to do one of the.pulleys. if the noise stops you know it's either.the belt or one of the accessories the belt runs on, because I guess the big question as some people are saying Timing chain which you would rather that be last.

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[Chops96]

Just had a thought, not sure how mechanical minded you are, but if you can removal the alternator belt, and then start the car you can see.if it's anything to do one of the.pulleys. if the noise stops you know it's either.the belt or one of the accessories the belt runs on, because I guess the big question as some people are saying Timing chain which you would rather that be last.

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Yeah I’m always abit funny about Vauxhall some of them are good and some just mug you off:/ I have a local garage that used to be a dealer but now they sell MG’s which I’m not keen on but they still do my Vauxhall bits for me!

erm just a little bit I know the general basics of how an engine works enough to get started. That’s a good shout actually, so on the corsa I assume it would have a belt tensioner like any other engine? So I can loosen the belt off and give it a quick run without it. The only thing is it mainly makes the noise when the engine is hot and I don’t really wanna run my engine for too long without the drive belt.

Any extra knowledge would be appreciated I’m always up for learning!

So if the noise carries on without the drive belt is it straight up a cam chain issue? Or could it be a couple of things?

 

[everson38]

Yeah I get what you mean with running the engine up to temperature without the belt on.for that long. Going of your response the issue is, yes the Corsa Have a typical tensioner, but t annoyingly you need remove the engine mount to removal the auxiliary belt, which isn't had to do but but not as simply as watch to.typical expect. But if you are ok to do that. I would run you car upto temp and let it get warm naturally with belt on. Once it been running a while and go nice and hot, I would the. Proceed to removal the belt and test it without the belt as it will still have decent heat in the engine.

If the noise remained without the belt on,not it isn't necessarily the timing chain it could be a few things in that remit, personally I feel it maybe the crank shaft seal along those lines as the noise sounds more of air escaping to me and not typical chain sound issues.

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[everson38]

Also not sure if you can do a mother video but of the actual car and engine, ideally having someone with th you and u do.some.tests, rev the car when it's doing it, turn steering wheel led.tand.rigjr whilst doing it, finding on AC compressor. As.ot would be better to hear some real life car footage and see it.

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[Chops96]

Also not sure if you can do a mother video but of the actual car and engine, ideally having someone with th you and u do.some.tests, rev the car when it's doing it, turn steering wheel led.tand.rigjr whilst doing it, finding on AC compressor. As.ot would be better to hear some real life car footage and see it.

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That might be beyond my capability's a little bit to remove the engine mount won’t the engine need supporting underneath? It’s a pain you can’t just loosen the tension or like normal😂

yes I will try and get that footage today!! Sorry I have been a bit busy the last couple of days genes the gap in response!

I’m really grateful man.

 

[Chops96]

Also not sure if you can do a mother video but of the actual car and engine, ideally having someone with th you and u do.some.tests, rev the car when it's doing it, turn steering wheel led.tand.rigjr whilst doing it, finding on AC compressor. As.ot would be better to hear some real life car footage and see it.

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just ignore my air filter it’s a little boged at the moment as I’m in the process of installing a cold air intake. Not finished yet he sent why it looks ****😂😩

here’s the videos you asked for the first one is engine tickover while hot, then I move the phone closer to get a better sound as it is quieter.
Then in the same video I ask for the air con on full then you can hear the noise a lot more.However this isn’t always the case
The I get the engine to be revved an you can’t really hear the noise much then.

the second video is engine shutdown with no air con on.

If you need something more specific or a location let me know anything that will help!

 

[everson38]

just ignore my air filter it’s a little boged at the moment as I’m in the process of installing a cold air intake. Not finished yet he sent why it looks ****

here’s the videos you asked for the first one is engine tickover while hot, then I move the phone closer to get a better sound as it is quieter.
Then in the same video I ask for the air con on full then you can hear the noise a lot more.However this isn’t always the case
The I get the engine to be revved an you can’t really hear the noise much then.

the second video is engine shutdown with no air con on.

If you need something more specific or a location let me know anything that will help!

Hey Pal,

Yeah to remove the mount you need to support engine underneath with a jack and a block of wood, it's not hard to do just aatter if your confidentnin doing it (can advise videos to watch to get a feel).

But I agree with you in the video it definitely got.louder with the AC being turned on. It comes down to really though, if you aren't a DIY car guy either way you will need to get it into a place to be repaired / diagnosed. I would do another video for yourself or put up here aswel of you running the car normal and the. Just turn the AC on and off to see.of the noise drops up and down with it . If so in the terms as far as you can diagnose it with the limited skillset it would point to the AC pulley. As any decent garage, on the terms of diagnosing would out the belt off and see if that makes and change, then test for play in the pulleys / use mechanic stethoscope to see if they can here which it is.

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[Chops96]

Hey Pal,

Yeah to remove the mount you need to support engine underneath with a jack and a block of wood, it's not hard to do just aatter if your confidentnin doing it (can advise videos to watch to get a feel).

But I agree with you in the video it definitely got.louder with the AC being turned on. It comes down to really though, if you aren't a DIY car guy either way you will need to get it into a place to be repaired / diagnosed. I would do another video for yourself or put up here aswel of you running the car normal and the. Just turn the AC on and off to see.of the noise drops up and down with it . If so in the terms as far as you can diagnose it with the limited skillset it would point to the AC pulley. As any decent garage, on the terms of diagnosing would out the belt off and see if that makes and change, then test for play in the pulleys / use mechanic stethoscope to see if they can here which it is.

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Thanks man!Yes I have seen it done on a corsa before however I don’t have a jack, I think my uncle does though! Yeah I know what you mean I would like to learn so the only way is to do it I suppose! Videos would be appreciated!

Yes when cold you cannot hear it at all
When hot you can hear it a little
When the a/c is on it defiantly gets a lot louder, however the noise is still there when the a/c is not on, so is the a/c constantly getting driven by the engine even when not on? As in Is the pulley still spinning when the a/c isn’t on? I mean I’d atleast like the diagnose it myself as then I have a better chance of not being mugged off at a garage when I get it fixed if I knew what was causing it, if it’s an easy fix il do it but I haven’t got the space or confidence to strip my engine down On my own if it’s internal

Yes that’s a good idea! I will have another play around tomorrow to see what causes the noise to get louder as that might point in the right direction

Thanks for your help man it’s really appreciated!