pressure in the overflow thank

[chana1634]

I have a 1999 e7 350, and i notice that coolant was coming out of the coolant tank, i install a new cap, but did not solve the problem, i remove cap, and notice a lot of coolant coming out, and coolant was just warm, on the cool side, i try to bleed the system and notice air coming out of the small hose on top of tank, the start truck again with cap on, after a few minutes i notice that coolant was pushing out a lot and stop engine, when i did stop engine , i notice like a ball of coolant and air came out a lot, then bleed air again, and run engine again, after a while start doing same coolant coming out, but right then i step on fuel, and i notice that the coolant stop coming out of the tack, let it idle again, and coolant came out air build up at idle, then i step on fuel idle hi and it stop building air in the system, when i step on the fuel, coolant stop coming our of thank, I ask any body if has any  idea, please advise, p.s never seen this before, thank your, 

Edited July 17, 2018 by chana1634

[markrandi]

Do u smell diesel fuel?  COULD be cracked inj cups.

[Nobody454]

could be the air compressor, friend of mine chased his pushing coolant out the overflow for a long time...finally put on a new compressor and it went away

[chana1634]

no i don't smell diesel in the coolant, infact i replace front head gasket, head look like was leaking oil  out of the exausted ports, but notice all good, did so some marks on the liner number 1, but i cleaned with a red clouth cleaner paper, and mark when away, I remove air compresor head gasket, install new gasket, test, and maybe did something it not building air like it was, and i notice that it is doing it, when engine is cold,

[chana1634]

I install new compressor gasket, could it be the still do it eben with new gaskets,

[chana1634]

[chana1634]

marks on liners,

[chana1634]

well i i block air compressor, to engine block, but still doing it, the strange thing is that it does it when engine is cold, then i idle engine hi and water gets suck in, this is really strange, i drove truck to get temp up to 180, and no pressure build up in coolant thank, if any body has any idea, let me know please, and thank you

[chana1634]

I found a tiny crack on number 1 liner, remove and replace liner problem solve, turn out that becouse this liners are so thin they crack.