Advice GU3 ZD30 rough idle snorkel blowing

[Geeyoo]

Have a 2003 GU3 ZD30 Direct injected TD, started running rough a week ago, when cold it’s hard to start a few pumps of diesel helps starts better when cold.
Once she’s warmed up it runs better
While running it’s blowing air from the snorkel

Any ideas would be much appreciated. Thanks

[Woof]

First post, ask for assistance and not even a please or thank you............................

[BillsGU]

I would say a top end problem. Either a stuck or burnt out valve or a cracked head. Get a mechanic to have a look - but it does not sound good or cheap.