sc94gt

Take the serpentine belt off... spin the water pump pulley... see if it starts to leak.
I think Ford Racing water pump goes for under $50.

mattdel

i recently had a coolant leak in my 89. turned out to be a coolant hose running from the throttle body to the back of the intake. popped a hole where a hoseclamp from the heatercore hoses was rubbing on it.

wine_maker

get the system and cap p**tested you want wast money that way
the floresent dye good idea >>get some then presure test the system
you will find the leak >>>>>

ROTTITANK

check your heater hoses to

alec3369

its most likely your water pump. I just changed mine the other day. Its not hard at all it just takes some time. Also check the water neck like iamvillani said becuase mine leaked tons of coolant even after a changed the gasket. It ended up being warped .

PJB

I think parts stores rent out coolant system pressure testers. If not they sell them.
Its a pump with an attachment that screws onto the radiator where the cap goes and you pump it up to the pressure on the cap (usually 15 psi or so) and then check for leaks. The same tool also can test radiator caps.


Water pumps have a weep hole that drips fluid if the pump is bad. One of my old trucks leaked alot of coolant out and it was from the water pump.

A new water pump is $68.99 at Advance Auto for your car.

93 LX FiveO

+1 but it shouldn't cause his car to overheat.

mine leaks like a bastard but i check the rad everyday and its always topped off

as long as u got coolant in the radiator and its topped off ur car shouldnt have a cooling problem unless its somewhere else. fan, clutch, etc...

dimebag

my car the overflow leaks...so that sets off the light... somethin to check into for you maybe...