2004 focus mk1 1.6 petrol

hi all got a mystery noise

when i pull away from any junction 1st gear i get a chirp/screech from under the bonnet.

first off, its had 3 aux belts (1 snapped, 1 changed for noise...)

new tensioner
new pas pump (old one leaked)
new alt (had a spare)
new waterpump (bearing died)
new idler pulley
new crank pulley with timing belt job

its worse when warm weather?! very worse on hill starts

could it possibly be the clutch? i cannot for the life of me get it to reproduce the noise on the drive, even with heated screens,lights,everything electrical on. will only do it when pulling away....

any help appreciated lol been doing my tits in the last year

 

I've herd many a focus with squeaky auxs belts there not uncommon, it might be worth you having a closer look at the exhaust possibly a heat shield or as you say under the bonnet . have a look at the front flexi they can be totally shagged but only blow a little if that makes sense

Cheers

 

My car does that if I dial in 5000 rpm and drop the clutch, I think it is the tyres.