Squeaking under the hood at 2000+ RPM

My truck has started to develop a what I'd refer to as a consistent chirping noise when going over 2000 RPM. Almost sounds like it's coming from the left of the engine, but can't tell. It's been happening every few days for the last three weeks.

Any thoughts?

 

If it sounds like crickets chirping it is the High Pressure Fuel Pump

 

as i listened to it tonight, it was more of a whine than chirping.

 

Or this too?

 

i was told it's normal.

https://www.tacomaworld.com/threads/help-diagnosing-ticking-noise.565377

 

Maybe he's talking about diff whine.

 

Chirping noise is high pressure fuel pump. There is a TSB issued for that concern. I had mine replaced and no chirp since then, although dealer did not want to do at first since it was not chirping when they had the vehicle. My logic is if a customer complains of a certain issue and there is a TSB issued for that specific issue, perform TSB.

 

Your logic is sound. Dealer logic is more "if a customer complains about something, then it must be a normal characteristic of the vehicle."

 

Probably the cat that crawled in there

 

If you hear this, its the chirping high pressure fuel pump:
https://youtu.be/N9n3PDtKp_c

T-SB:
https://imgur.com/a/O1WeZmd

 

thanks for the videos, it's definitely not that. it only happens when i'm going over 2000 RPMs. it sounds pretty bad

 

Check your serpentine belt and pulleys for abnormal wear maybe

 

did you figure out what it was? My tacoma has the exact same problem.

 

There is a TSB out for the serpentine belt in early model 3rd gens. Didnt fix my issue tho my 2017 goes through a belt a year