Re: I question your method of saying the head gasket(m
I think you are probably right, with this overheating on and off for almost a year--sometimes red light turned on when I realise it--there's a chance the head gasket is failing.
Frankly I haven't done pressure test myself and I doubt I can get the right tool here. We do have Ace Hardware here in Jakarta but not sure if they sell it. Anyway thanks for your valuable advice. Cheers!