Hi all. Ive got an odd issue and want to get it sorted as soon as poss - trackday looming.

I've got a MK4 fiesta with focus RS engine and box in it, with focus PAS pump.

Always been fine. Pulled the car out of the garage after its winter rest and noticed that the PAS is making a groaning noise (like low level etc) when turning to the right, but not the left.

To my knowledge, the pump works in exactly the same way when turning left/right? Any ideas?

Thanks