Keep running hot - 2000 Ford Crown Victoria

NOT REALLY ANTIFREEZE KEEPS THEM FRON FREEZING WHEN TEMP OUTSIDE IS BELOW FREEZING

The causes of this are many and seldom the same. Please read the info at the link to better understand what to check. If the engine is really overheating the check engine light will come on. Common Causes of Overheating ASC Industries Inc

I would start by checking the fluid to make sure it's at the proper level, Then check to see if the thermostat is opening like it should. If you have good flow and you get heat inside the car but the car still overheats I think I'd be checking for blown head gaskets and head warp.

If yo keep adding then you're obviously losing antifreeze somewhere. If it's not dropping on the ground then I'd say you have a blown head gasket and it's going out the exhaust. If you keep running it hot and it is a blown head gasket, sooner or later you'll warp the head or crack it, then you'll really be outting out the money for a fix.

run engine from cold with rad cap off and see if it pressurises ,as its so old i suspect a failing head gasket and its due for renewal .

Drive with your heater on. It helps the air flow, and keeps it from over heatng,.

where is the leak?

Get the timing checked, seems as if it has been adjsuted slightly out to give a better performance, (been advanced slightly)

maybe you have an air lock in the cooling system that would cause it to run hot

CHECK COOLANT LEVEL STILL LOW.ADD MORE COOLANT.UNTIL RADIATOR OVERFLOW FULL AT COLD MARK.THEN CRANK ENGINE UP LET IDLE FEW MINUTES LOOK DOWN COOLANT OVER FLOW JUG ADD MORE COOLANT IF LEVEL DROPPED.WHILE ENGINE RUNNING KEEP EYE ON TEMPERATURE GAUGE.WHEN THERMOSTAT HOSE GET HOT.TURN OFF ENGINE WAIT A LITTLE WHILE TO KEEP FROM GETTING SCALD TAKE LARGE RAG PLACE OVER OVERFLOW JUG RADIATOR CAP.OPEN CAP A LITTLE A TIME.IF COOLANT TRIES BOIL OUT.LET VECHICLE SET A WHILE LONGER.ADD MORE COOLANT.WHEN COOLANT LEVEL CORRECT AND ALL AIR OUT THE COOLANT SYSTEM.IT WILL STOP OVERHEATING.LONG AS ENGINE RUNNING HOT TURN OFF THE ENGINE POUR IN MORE COOLANT UNTIL COOLANT LEVEL STOP DROPPING IN RADIATOR.KEEP COOLANT LEVEL IN OVERFLOW AT COLD MARK.DONT OVER FILL OVERFLOW JUG.