vokal

I have changed the head gasket
the water pump
thermostat
flushed the system all new fluids
and still the rad fluid boils
The fan comes on but not for long
getting new one today but should that fail
any other ideas would be great
i have a civic si D16z6

the car never overheats but it boils?????????????????
????????????????????

p.s changed fan relay as well

thanks for any input on this

imported_chris_v2

intake manifold gasket.

Why the hell are you replacing the waterpump, thermostat and fan? You have air in the system. If you installed the headgasket PROPERLY then it should be an intake manifold gasket. But do a leakdown test first. Or better yet.. do a system pressure test.

imported_hub_n_hun

Damn man, I am having the exact same problem in my D15B7. I have changed the thermostat and radiator cap and flushed and filled the fluid. Before I changed the above it was overheating and after that was changed that stopped but my coolant in the reservoir keeps boiling and for some reason is almost at the top of the reservoir. Oh yea, I also changed my fan relay but still have to check if the fan motor is working since my fan does not turn on. So anyone with any input, let us know.
Thanks

imported_chris_v2

I just told you what it is????

imported_hub_n_hun

What would the intake manifold gasket have to do with it? It makes no sence.

Jokerluv

did you bleed the air

imported_chris_v2

That's because your not educated. Theres a coolant port that passes through the intake manifold. If that seal/gasket rips then air is now getting into the coolant passage.

Does the coolant foam or bubble more when you revv it up?