coolant

[G15OST]

Hi all. right i thought it was an air lock on my 2.4 after installing a new cylinder head (brand new). When on a fast idle the heaters dont really get warm, motor didnt overheat unless driven or revved past 3500. i had it running again today trying to figure it out and popped the top hose off the thermostat housing to radiator and didnt really have much of a flow of water. When i put the hose pipe through the top hose it flowed freely...does this mean the water pumps had it????

Sorry for all the Q's im just desperate to use my truck!!!

[sledge]

if your not getting any heat from the heater it is normally an air lock. does your rear heater blow hot or cold? have u lost any water? did you leave it overnight when releasing the air?

[G15OST]

yeah. i think its the water pump as even with the thermostat removed theres only a trickle flowin through, and when i put the hose pipe in it flies through!!!

[sledge]

is the pipe blocked up, with crud

[NiftyNev]

Is the bottom hose collapsing, restricting the flow?

Nev

[G15OST]

None of the above. all hoses are fine and system obviously not blocked as even with low pressure on my hose pipe water running through system freely.