Engine Whistle Noise (While Engine Off)

[pierceography]

Hey guys - So I've got a weird issue going on with my 2019 802a. After I stop the engine, the truck will whistle. This will continue for two to three hours after the truck is driven. It's not constant -- it will whistle for one to five seconds stop for ~30 seconds, then whistle again. The best way I can describe it is the sound of a toy train whistle.

The issue was intermittent when I first noticed it four months ago (would happen about 25% of the time I drove the truck further than a few miles). However, it seems to be happening more frequently now. This afternoon I only drove the truck for five minutes, and it's been whistling in my garage for the past three hours now.

I took the truck into the dealership a few months ago, and they said they weren't able to reproduce it. The tech said he found a notice Ford put out about what I described and that the issue wouldn't affect the truck's performance and shouldn't be repaired. Tbh, I'm not going to accept that. I didn't spend this kind of money to have the damn thing emit a whistle for hours after it's driven.

Has anyone experienced anything like this or know what it might be? I'd like to get it fixed.

Thanks in advance.

 

[Oldfart]

Have you seen this guy hanging around your truck??

 

[Moridin]

Yeah, my 19 has done that too. A while back there was a long thread about it, and a few people said theirs did as well.

A lot of guesses as to what it was and why it was happening, but no actual answers as I recall. The consensus seemed to end up being just accept it and move on. lol

Haven't heard mine do it in a while, but for a time it was almost a daily occurrence.

So sorry, no answers for you, but at least know it's not just you.

 

[JefferyGT]

Air pressure builds up in the intercooler.
Here is an ecu controlled bov write up...


...VTA vents after the truck has been sitting for a while (5+ hours). Im assuming this a programming function from the ECU that expels any air in the intercooler.

Link to associated thread will follow.

 

[JefferyGT]

https://www.fordraptorforum.com/threads/go-fast-bits-vta-review.82511/

I have no affiliation with this product.

 

[UsedRaptor]

2020 and mine does it also. I just figure its the truck calling me to drive it again.

 

[Lupa]

My truck whistles the intro to Guns and Roses Patience when I shut it off, but I think it has more to do with my irritation from morons driving slow in the left lane

 

[pierceography]

Thank you for the feedback, guys. I'll see what the dealership says when I make (another) appointment. I'll report back with anything useful I find.