[jd_975]

Hi mate, the cooling system on these engines is very difficult to bleed, the best way I have found is remove the small bore pipe from the top of the water pump and clamp it off then remove the cap from the coolant reservoir and blow through the reservoir untill coolant escapes out the top of the water pump and that is usually enough, if your garage has used a cooling system stop leak though then almost definitely you now have a blocked heater matrix, seen this many many times! Not a massive job to change but a pain no less, you need to have a block test done to identify if there are CO gases present in the cooling system this will tell you if the head gasket has blown, Vauxhall do not recommend having the head skimmed on this engine as it changes the tolerances for the timing chain and in severe cases the timing chain casing will not line up with head anymore but so long as its not too bad I have seen it done successfully more than once, Hope this helps.

John