Originally Posted by
andi-p
You will find that it will be air in the system from refilling it. Not a air ingress in to the system. Try with the engine running with the cap off and turning lock to lock and this is the way to get the air out of the system. I have changed loads of PAS pumps and this is the way I was taught as an apprentice.
Appreciate the advice but the air is not due to the refilling of the system, the reason i replaced the pump was because of these symptoms which started as i was driving along one day so there is a leak somewhere.
I would think the leak would have to be before the pump as that is the side that being sucked through rather than after the pump as fluid would be rushed out. Would i be right in thinking this?