sketch:fiskerapprovd

It's an early 2001 1.8T with almost 70,000 miles.

At idle it sounds like a
chirp....chirp....chirp....chirp...chirp

Give it throttle and it just gets faster like
chirp.chirp.chirp.chirp.chirp.chirp

The noise is the same whether the engine is hot or cold. I STFA and I'm led to believe it's a loose belt, but I'm not sure.

TIA

sketch:fiskerapprovd

Oh and I haven't done the TB yet, but I have the parts ready.

Pat

Do the belt change. It'll likely go away.

sketch:fiskerapprovd

I'm thinking the same...hope that'll be the case.

Pat

It was for me.

AudiHaldex

Proberly the tensioner for the ribbed belt,
open the bonnet and watch the tensioner moving and see if it's in time with the chirping.

sketch:fiskerapprovd

I see...do I need to remove the engine cover or anything else to see the tensioner?

Ritz

If you get the car on a lift, you can change the tensioner from below. I think there's just 2 6mm hex bolts holding it on.

sketch:fiskerapprovd

OK, this is the tensioner for the TB right?

Ritz

no, for the serpentine belt...no shortcuts for TB tensioner. Gotta "remove the front of the car"...