Power steering pump

[paradox]

I’ve a 1.9 TDi Passat engine in my van
Despite fitting a new belt and making sure it’s tensioned correctly
It slips the belt and squeals at full lock even when moving and turning.
Does anyone have any pointers please
Is there a bigger pump available if this one’s struggling?

[davidoft1]

Let it squeak , will save the pump, have you got multi v or single v belt ?

[Aidan]

have you checked fluid level with the engine running ? which fluid are you using ?
Do you have the noise reducing pipe fitted and the original metal lines front to back or just plain hose from the pump to the rack ?
Syncro (14 or 16 ?) or 2wd ? Which uprights fitted ? New aftermarket LHD or original ZF rack ?