help! bad squeking/squeeling

[OneLove]

i put my fmic on a couple of days ago.

today i brought up the boost with my mbc from about 8 to 12.

everything felt good.

and then all of a sudden a really bad squeeking or squeeling noise started when i put my foot on the gas.
it wont go away.

i dont know wht to do.

the couplers are all good.

 

[BUCK]

Usually just a Power Steering Belt from the Cold & a lead foot~!

 

[OneLove]

its just that ive had to tighten my power steering belt when it was squeeking, and this is differents. its a sort of grinding squeel when i barely put my foot on the gas

 

[Defiant]

Harmonic balancer shit the bed.

 

[CompuBob_TSi]

does it happen in neutral or just when you start sending power to the wheels?