Re: EA 3.9 CFI head gasket or block
There is only one way that I know to stop the engine running outta water. Fit an electronic water level indicator. I recommend the Bell Electronics (Brisbane) as absolutely fail safe. When my radiator drops 20mm or so alarms and flashing lights go off. This is a must have. These come standard on Ghia and Fairmonts but not on the stock standard falcons. Only costs about $90 to $130.00. to fit yourself. Best engine insurance you can have.
Lets face it, there are so many ways on an engine to lose water....Radiator, lower or upper hoses, transmission fittings, water heater hose, welsch plugs, head gasket, thermostat gasket, the list goes on. I have had about 8 cars in my lifespan so far and almost every one of them I have lost water somewhere.
Incidently, who watches the temp gauge alllllthe time. It only takes a few minutes to boil an engine and anyone who says they watch the temp gauge all the time is a bloody fool or a liar. I would rather watch the road and listen for the alarms.
I am now looking into fitting a electronic water temp alarm and flashing lights.