2 squeals when turning ignition?

[BiggerWhiskey]

Just noticed I’m hearing 2 squeals from the engine bay whenever I turn the key to on - happens every time, the video sounds a little louder than it really is since I was in my garage…doesn’t sound normal, any advice would be appreciated. Thanks!

 

[Shopkeep]

Does not sound right. If you mean when you first turn the key to the accessory position prior to turning it to start I get a click then the background electrical whine but no mechanical sound like that.

 

[BiggerWhiskey]

Yep, whenever I turn it to the on / accessory position - I get 2 squeals, followed by 1 shorter squeal (and not as loud) when I turn the key to off. Happens every time, so it’s easy to recreate.

Any idea what “pumps” might be turning on when you turn the key to the on / accessory position, or if this is a known issue. It sounds like a pump or something - but I’m not exactly sure. Vehicle seems to run fine, it’s just when I’m turning key on prior to starting - and then when I turn off.

 

[rscotta]

Mine does the same. A high pitch squeal. I talked to the dealership and they said it was the power steering unit. Could have a future recall. Not now.

 

[Eric]

Yep, whenever I turn it to the on / accessory position - I get 2 squeals, followed by 1 shorter squeal (and not as loud) when I turn the key to off. Happens every time, so it’s easy to recreate.

Any idea what “pumps” might be turning on when you turn the key to the on / accessory position, or if this is a known issue. It sounds like a pump or something - but I’m not exactly sure. Vehicle seems to run fine, it’s just when I’m turning key on prior to starting - and then when I turn off.

Fuel pump?? Power steering pump??

 

[BiggerWhiskey]

Mine does the same. A high pitch squeal. I talked to the dealership and they said it was the power steering unit. Could have a future recall. Not now.

Just sent you a direct message - but Im also going to post a link to a longer video if anyone wants to take a look / listen....the forum wont let me attach anything larger than a few MB it seems...

It definitely seems to be coming from the left side of the engine bay...possibly even under the actual engine...

Google Drive:

2024 Ineos Grenadier Engine Noise – Google Drive

drive.google.com

 

[HereinDaRockies]

Mine does the same. A high pitch squeal. I talked to the dealership and they said it was the power steering unit. Could have a future recall. Not now.

Your dealer said they may recall the psu ? Why? Due to the whine?

 

[Shopkeep]

Does not sound right. If you mean when you first turn the key to the accessory position prior to turning it to start I get a click then the background electrical whine but no mechanical sound like that.

BTW I have a diesel so may be different sequence on startup. But the power steering pump should be the same, I don’t understand why it would prime on startup so am calling BS on that. On the petrol you probably would have a fuel pump prime prior to start.

 

[MTNDOG]

Same sequence of noise when I turn mine on, but no squeal. So the sequence of "noises" appears to be the same, just not the sound. I see something actuating at the 11 second mark of your second video as well, maybe its there?

 

[BiggerWhiskey]

Same sequence of noise when I turn mine on, but no squeal. So the sequence of "noises" appears to be the same, just not the sound. I see something actuating at the 11 second mark of your second video as well, maybe its there?

good eye! So Its definitely coming from that part that is actuating...I've uploaded a video of it...can anyone identify what this part is? Sprayed a little WD40 on it to see if it would help....seems to have maybe helped a little, but didnt get rid of completely. Thanks!

2024 Ineos Grenadier Engine Noise – Google Drive

drive.google.com

 

[BiggerWhiskey]

finally got a video file to post....I had another Gren owner send me a video of his, and looks like it has grease on it....mine does not when it actuates....any help identifying this part or if I can grease it myself would be great...not sure if it has something internally that is supposed to keep it greased....but definitely getting that metal on metal sound.

 

[Shopkeep]

finally got a video file to post....I had another Gren owner send me a video of his, and looks like it has grease on it....mine does not when it actuates....any help identifying this part or if I can grease it myself would be great...not sure if it has something internally that is supposed to keep it greased....but definitely getting that metal on metal sound.

That actuator has been discussed on this forum before, I have searched but cant find the post or thread. I am sure someone will be along with the answer soon.

 

[Shopkeep]

That actuator has been discussed on this forum before, I have searched but cant find the post or thread. I am sure someone will be along with the answer soon.

Found the thread I was thinking of, but might not be the same actuator:
Sudden wastegate rattle

 

[BiggerWhiskey]

Yeah I can’t tell if that’s the same one…mine definitely isn’t rattling like that, just doesn’t seem like it’s greased properly. I’m just not sure if it’s supposed to grease itself while the engine is running, or if it needs to be manually greased / lubricated to stop the metal on metal squeal

 

[Clark Kent]

There are not a lot of external mechanical engine things that position with power applied so my guess would be turbo wastegate also like @Shopkeep said.

The video is a bit close to see exactly where you are. This is taken from the B58 training manual. I think you're looking at items 1 to 3 of the bottom pic? If that's correct then the wastegate/wastegate control linkage is the potential source of the noise.

 

[BiggerWhiskey]

There are not a lot of external mechanical engine things that position with power applied so my guess would be turbo wastegate also like @Shopkeep said.

The video is a bit close to see exactly where you are. This is taken from the B58 training manual. I think you're looking at items 1 to 3 of the bottom pic? If that's correct then the wastegate/wastegate control linkage is the potential source of the noise.

View attachment 7895104

Yes, it’s on the left side of the engine and definitely part of the wastegate….another Gren owner sent me a video of his, and it looks like it’s oiled or greased, so it doesn’t make that squeal when turning the engine to accessory / on…

If you open your hood and look down the left side of the engine, you’ll see the same part and it actuates when you turn the key (you’ll need another person to do this)

Question is - is this part supposed to self lubricate from the engine somehow, and it’s not…which is causing the metal on metal squeal….or is it as simple as needing to lubricate it myself…

My fear is that it’s supposed to self lubricate from the engine and it’s not for whatever reason…

 

[BiggerWhiskey]

Heres a video of what it should look like...you'll see when it engages / disengages - there is clearly some lubricant around that cylinder...and another angle of mine that does not seem to be lubricated, causing the squeal or metal on metal sound...

 

[Clark Kent]

Heres a video of what it should look like...you'll see when it engages / disengages - there is clearly some lubricant around that cylinder...and another angle of mine that does not seem to be lubricated, causing the squeal or metal on metal sound...

Yes, it’s on the left side of the engine and definitely part of the wastegate….another Gren owner sent me a video of his, and it looks like it’s oiled or greased, so it doesn’t make that squeal when turning the engine to accessory / on…

If you open your hood and look down the left side of the engine, you’ll see the same part and it actuates when you turn the key (you’ll need another person to do this)

Question is - is this part supposed to self lubricate from the engine somehow, and it’s not…which is causing the metal on metal squeal….or is it as simple as needing to lubricate it myself…

My fear is that it’s supposed to self lubricate from the engine and it’s not for whatever reason…

It's not self-lubricating so no issues there.
It's an electric actuator operating a mechanical linkage to position a bypass valve within the turbo.

It would be reasonable to expect a dab of high temperature lubricant on the contact points of the linkage and the actuator shaft but probably not on the shaft that mounts and operates the valve in the turbo which is a much hotter area.
Yours might have missed out on lube day; or someone got a bit overzealous with the degreaser and/or pressure hose and washed the lube off; or the wrong lube has been applied and it's a bit gummed up.

It's standard BMW engine stuff so if you can't access your IA dealer easily and want help then any BMW dealer should be able to advise and perhaps assist. If it's just a case of applying an approved lube (TBD) you could choose to proceed off-warranty at your own cost. If the source of the squeak is deeper in the housing of the turbo then it's a dealer job.

Don't put any low-temp rated lubricants on it. WD40 is rated to 150C/300F but it's primarily a penetrating fluid and it dries out. The wrong temp rating lube will make it worse.

Dribble or spray some weak soapy water over the moving parts when the engine is cold. Use a mild soap like dish soap or hand soap so it doesn't wash out any remaining lubricant. Cycle the key a few times. If it is quieter when it's wet then you're on the right track. Rinse it with some fresh water afterwards.

Standing by for the lube jokes...

 

[BiggerWhiskey]

Thank you very much for all the info - it definitely missed out on lube day…the closest dealer is 3.5 hours away, so lubricating it myself would be easiest at this point. I was doing some “lube research” earlier and saw something about Mouse Milk? Or is there something else you might recommend that is easy to find at any local auto store? Thanks!

 

[Clark Kent]

Thank you very much for all the info - it definitely missed out on lube day…the closest dealer is 3.5 hours away, so lubricating it myself would be easiest at this point. I was doing some “lube research” earlier and saw something about Mouse Milk? Or is there something else you might recommend that is easy to find at any local auto store? Thanks!

Happy to help.

Mouse Milk is another penetrating oil like WD40. It's mineral based with a blend of solvents to break down rust and loosen stuck components. There are material considerations for the actuator and linkage. A mineral based lube may do damage.

My gut says you're looking for a high temperature low viscosity silicon (incl. PTFE) grease. Something from the Inox or Dow Corning brands for example.

You should first try to resolve 'is a lube required?' before 'which lube can I use?', although a suitable grease is unlikely to do harm even if there is no benefit. Hopefully someone with specific knowledge of this engine will chime in soon with a better answer otherwise you might need to call some places around you next week.