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.