Exhaust squeak? (1 Viewer)

[MarkMarine]

I’ve been tracing down the sound of this squeak or whistle, and I think I’ve got the belts ruled out. The note is much more apparent under the vehicle. It’s more high pitched and prominent off video, in person, but I think this captures it.

Is this a normal 3FE engine sound? What is that high pitched squeak / squeal that is only really apparent at idle?

(Sorry, only way I can get this up is a link to the video)

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[OSS]

It doesn’t sound like an exhaust leak to me. It sounds mechanical

 

[TheElegantFox]

I agree, doesn't sound like exhaust to me. I've been chasing noises in my system and those were loose heat shields that made a rattle at resonant frequencies.

You may want to check the heath of your idler pulley: idler pulleys on fj62 - https://forum.ih8mud.com/threads/idler-pulleys-on-fj62.1198595/

Mine will squeal/chirp like nobody's business if I spray the undercarriage, it's on my to-do list for replacing.

 

[ChaserFJ60]

Try one of these, You can pinpoint specific noises easily with this. I use it all the time

Amazon.com

 

[MarkMarine]

It doesn’t sound like an exhaust leak to me. It sounds mechanical

Would someone mind posting a video of your truck running? This the only 3FE I have access to.

 

[TheElegantFox]

Would someone mind posting a video of your truck running? This the only 3FE I have access to.

Here's a 3FE that sounds pretty solid to me:

I think this is one hosted to link to a sale on bring-a-trailer or something similar

 

[MarkMarine]

Mine's got a... let's say "non-standard" belt arrangement to remove an accessory that wasn't contributing to the health of the engine.

I hear what ya'll are saying, sounds mechanical... I am struck by the location of the sound though. It just sounds so much stronger under the truck and on the drivers side, more to the back where the exhaust was. Is it possible the throw out bearing could be squeaking? There is no change when the clutch is pushed in.

I went over all the pulleys with the screwdriver -> ear trick to see if I could hear anything and I didn't hear the squeak. I hear an idler pulley making a little bit of a grinding sound, so I'm going to swap that out but I don't think it's the cause of the sound I'm hearing outside the car.