wel.. i have a car parked up for a while. when i drive slow it is ok. but when i drive on and stop still running the engine bay steams.. and when parked and revving steam and water comes out the top over flow on the rad,, any ideas? could it be thermostat or head? thanks:
I would say 100% headgasket do a sniff test mate!!
Il try find you a guide for it
is the rad cap the correct one for the rad?
I'd check the thermostat and rad cap first.
if that's okay, then a test to see if the headgasket is FUBAR.