Chirping sound or squeek

I now have 4,000 miles on my truck 16 and just the other week I've noticed the chirping noise coming from under the hood only when it's idling or like at a stoplight. Opened the hood couldn't pinpoint where was coming from took it to the dealership I believe they said it's the injectors cleaning themselves????
Has anyone else ever heard of this?
This is my first Toyota is this normal?

 

It's not the injectors cleaning themselves, that's more of a ticking time nice. What you were hearing is the high pressure fuel pump aka HPFP. No it is not normal, I don't care what the dealer says LOL.

 

Guess I should reiterate, YES it is normal, but NO its not supposed to be.

 

Turn the stereo up and see if it goes away.

 

Sooo nothing to worry about?

 

Not really. Wait till your warranty is nearly up and then go have it replaced by the dealer. It's about a $1400 job from what I've seen.

 

Somebody else just had a chirping problem manifest into something worse. Will try to search for it later.

 

Would be good to know if so. My buddies FRS has been doing it for about 25K miles now, and the toyota dealer give him the ol "normal operation" excuse.

 

I have made a thread on this. Look it up

 

Fuel pump. Some have managed to have it replaced. I had this issue and found it was caused by the fuel I was using. Stoped using that shell station and the chirping went away

 

<iframe width="560" height="315" src="https://www.youtube.com/embed/L9AjtT08XLQ" frameborder="0" allowfullscreen></iframe>

 

flux capacitor re-charge ... perfectly normal!

Tacofister... take the truck wheeling then the rattles will cover up the sound. Problem solved...

 

I had mine fixed at 5k miles. I have 18k and no squeeks still

 

What was it the fuel pump??

 

High pressure fuel pump. Dealer changed it out with some other stuff attached to it.. Never had the sound again

 

Ok yeah I remember that issue... they changed the pressure regulator or something like that??