2015 SHO, When cold, weird squeal comes from engine. VIDEO Attached

[SmittyGeno]

2015 Taurus SHO - Squealing from engine when cold (Less than 40 degrees). Only happens in the first few miles, and stops after a minute or two down the road. Chirp/Squeal has gotten slightly louder, and lasts for a significantly longer time than it did initially. Any ideas??? Video embedded below....

 

[krewat]

Interesting - I have a "flapping" sound in my 2018, doesn't change frequency with road speed, yet stops when I'm not moving. The fact that it doesn't change based on engine RPM or road speed has me wondering...

 

[SmittyGeno]

YES! Same here. Squeal is consistent regardless of speed. But when you stop moving, it stops. So you can never pop the hood and try to troubleshoot. I've thought about duct taping my 12 year old son under there to watch it while driving, but I'm sure that would be frowned upon.

 

[Zpak]

Wow strange. Sounds like you hit a dolphin.

 

[802SHO]

It's yelling....stop giving me 87 octane!!!! Just messing with ya! If it was constant it sort of sounded like metal on metal brake sound.

 

[SHOdded]

Brakes or in distant second, wheel bearings. Wheel bearing noise, unless bad on both sides, will vary depending on whether you are turning left or turning right.

 

[jman1200]

Is your ventilation system set to defrost or defrost/feet?
Because it is intermittent, thinking it could be the AC compressor belt. Stops squealing when it gets warm and flexible.

 

[xFallenxCripplex]

Interesting - I have a "flapping" sound in my 2018, doesn't change frequency with road speed, yet stops when I'm not moving. The fact that it doesn't change based on engine RPM or road speed has me wondering...

That maybe the under engine cover have you gotten the car to 130mph?
Or still have the lousy half turn clamps?

Sent from my Pixel 4 XL using Tapatalk

 

[SmittyGeno]

Is your ventilation system set to defrost or defrost/feet?
Because it is intermittent, thinking it could be the AC compressor belt. Stops squealing when it gets warm and flexible.

Yes, I keep it on Defrost/Feet. The noise is absolutely 100% engine, and not wheel bearings or brakes. So the AC Compressor Belt may be a real possibility as the sound goes away within 5 miles or so. Thank you for the great feedback! Do you know if that's a dealer service type thing, or a couple beers in the back yard type of repair?

 

[SmittyGeno]

Brakes or in distant second, wheel bearings. Wheel bearing noise, unless bad on both sides, will vary depending on whether you are turning left or turning right.

Thanks. That was my first thought, but it's definitely an engine noise.

 

[SmittyGeno]

It's yelling....stop giving me 87 octane!!!! Just messing with ya! If it was constant it sort of sounded like metal on metal brake sound.

Ha Ha, this car runs like CRAP on anything below 93 Octane. I just suck it up and pay the extra. The noise is definitely an engine thing though. Brakes and rotors are brand new.

 

[jman1200]

Yes, I keep it on Defrost/Feet. The noise is absolutely 100% engine, and not wheel bearings or brakes. So the AC Compressor Belt may be a real possibility as the sound goes away within 5 miles or so. Thank you for the great feedback! Do you know if that's a dealer service type thing, or a couple beers in the back yard type of repair?

Your compressor will cycle when defrost mode is on.
Try this, with a cold engine, start the car and drive the car with the AC on, the squeal should be much more noticeable if not permanent.
If this happens then it is definitely your belt. Apparently it is under constant tension so your option is to replace it.
Found this video, apparently its very easy to do. Not sure if the SHO is exactly the same procedure since there is no power steering pump.

 

[SmittyGeno]

Your compressor will cycle when defrost mode is on.
Try this, with a cold engine, start the car and drive the car with the AC on, the squeal should be much more noticeable if not permanent.
If this happens then it is definitely your belt. Apparently it is under constant tension so your option is to replace it.
Found this video, apparently its very easy to do. Not sure if the SHO is exactly the same procedure since there is no power steering pump.

Thank you so much. I’ll check this tomorrow for sure!

 

[ridered74]

I had a similar squeal about a year ago, although it sounded a little different. Mine was the belt tensioner. I sprayed a little wd 40 on it even tho you aren't supposed to, haven't heard it again since probably july.

 

[802SHO]

I had a similar squeal about a year ago, although it sounded a little different. Mine was the belt tensioner. I sprayed a little wd 40 on it even tho you aren't supposed to, haven't heard it again since probably july.

I too suffer from "this is probably a bad idea/still did it anyway"

 

[jman1200]

Same thing comes to mind every time I am about to wash the engine.

 

[TimUSMC]

2015 Taurus SHO - Squealing from engine when cold (Less than 40 degrees). Only happens in the first few miles, and stops after a minute or two down the road. Chirp/Squeal has gotten slightly louder, and lasts for a significantly longer time than it did initially. Any ideas??? Video embedded below....

I have a 2015 SHO and it is making this sound damn near constant when driving only. To me it seemed boost related as it would mainly do it if I was using the throttle pedal. When I use cruise control I cannot get it to happen. What did you find as the problem?

 

[Joel Groff]

To me that sounds like some type of pulley doing that. A bearing wearing out maybe or just as they say "it warms up" I know random sounds are hard to troubleshoot and is it worth guessing and checking and replacing everything, I think not. It does sound like some type of pulley going bad and the pressure of the belt pulling on it/moving has me wondering.

 

[SHOrod]

I'm curious if you ever solved this. My 2013 MKS EcoBoost is making what seems to be the same noise, and has been for several months now. An excited dolphin does seem like a good description of the sound. On my car it's not related to engine speed or vehicle speed. It only does it when the engine is "cold," like after sitting several hours, and it only does it for the first minute or so of driving, consistently. Depending on which way I leave my house in the morning I can just about gauge to within 50 feet of where the noise will stop. It makes me wonder if it might be related to some emissions test or something that only runs on a cold engine, especially since it is not related to vehicle or engine speed, and goes away abruptly. Shifting to neutral does not cause it to change in sound, even if I speed up the engine while in neutral. Power braking the car in Drive does not cause the noise to occur, it seems to have to be moving above probably 5 miles per hour. The noise does not change with a change in vehicle direction, and it doesn't matter if the A/C compressor is engaged or not, or even if the climate control is turned off. If I let the cold car idle in my garage for 3 - 5 minutes, then go for a drive, it will still make the noise, so it doesn't seem to just be related to coolant temperature either.

I used my wireless ChassisEar on what I'll refer to as the front and rear BOVs, the high pressure fuel pump on the front valve cover, the EVAP purge solenoid, the carbon canister, and the fuel tank and have been unable to even determine if it's coming from the front or rear of the car, left or right side of the engine compartment. I'm completely baffled, but the noise is quite loud and embarrassing. I'm glad it only lasts for a short duration.

Again, there is no correlation to engine speed (including belt-driven accessories), vehicle speed, or vehicle direction. The sound gets louder when windows are rolled down, so it's not coming from inside the cabin. Opening the passthrough to the trunk does not make the noise louder either. Are there any experts here on the emissions system and what tests may run on a cold engine that execute completely within probably 2 or 3 minutes from the time the vehicle is put in motion after sitting several hours?

My next step may be to figure out a safe way to mount my phone underneath the car to at least try to determine if the sound is coming from the front or rear, then determine left or right side. I'm just not quite ready to put my phone at that much risk.

-Rod

 

[yaycandy]

Usually alternator. I can be the Jack A ss and recommend checking the power steering pump