Squeaking sound from motor

2017 Taco, just noticed this subtle squeak while parked at my storage unit.

Any of your pros have any idea what this might be?

Thanks!

 

Serpentine belt, roller, or tensioner

 

Trying to get the video to post.

 

Sounds like it’s coming from more the passenger side.

 

clutch chirp? does bit go away when clutch is engaged?

 

I don’t believe so. It wasn’t happening when I first started it today, but it’s there now. Speeds up with RPMs. AC on and AC off.

 

Another odd thing I noticed: when the temperature is cooler outside I don’t hear it.

It was in the 60s last night and the sound was gone.

It was upper 70s all day and the sound was there.

Strange. I took a video on my iPhone but can’t seem to get it uploaded here.

 

Serpentine belt tensioner or idler pulley bearing

 

Based on a video I found I THINK it’s the idler pulley. I bought the Gold extended warranty so I’ll bring it to Toyota and have them diagnose it.

 

Update:

Utilizing the extended warranty I purchased the dealership replaced the idler pulley and belt. Took a full day, but not bad. They even gave me a courtesy vehicle.

Unfortunately the sound still persists. When I parked between 2 vehicles last night I’d swear it sounds like it’s coming from the passenger side.

I plan on bringing it back to the dealership week after next when I return from Orange Beach.

Thanks!

 

Did it rain or was it raining when you started up?

I have found after rain some belt or something in the engine compartment seems to be wet and I hear some squealing for a minute or so. Usually 30 seconds after I am out the driveway it goes away.

 

radiator fan ...................?

 

No, it was dry. Interestingly enough it seems to happen only when it’s warm outside. When it’s cold it seems absent.