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GQ 4.2 petrol presurising & draining coolant
Posted: Sat Jul 26, 2008 8:16 pm
by Articulator
engine does not run hot until coolant has pumped out down below sender.
pumps out to overflow bottle then sprays all through engine bay.
radiator is cool to touch,cap is not hot ,coolant is not hot.
any suggestions?
Posted: Sat Jul 26, 2008 8:39 pm
by jessie928
sounds like your engine compression is pressurising the coolant
headgasket maybe, cracked head maybe
Jes
Posted: Sat Jul 26, 2008 9:29 pm
by simcoz
Sounds to me like you just need a new radiator cap.
Have hade this happen on a couple of cars.
Posted: Sat Jul 26, 2008 9:42 pm
by tj81
the other thing ive seen happen other than those mentioned, is if the car is on gas, i have seen a faulty converter pressurising the cooling system with gas.
check cap.
if on gas check convertor
check head / head gasket
Posted: Sat Jul 26, 2008 11:19 pm
by jessie928
simcoz wrote:Sounds to me like you just need a new radiator cap.
Have hade this happen on a couple of cars.
yes quite possible also. generally overlooked because thats the firt thing that gets changed anyway.
Jes