Ok I drove the car with the radiator cap off and the radiator appeared to be empty. As to if the Water Pump is leaking, i dont know, not sure if it is from that. I did add 3/4 a gallon of water the radiator took it all and i saw no smoke or steam with the cap off, except for a small amount when the car was turned off, and i saw the water level at halfway in the radiator.

Maybe the radiator was empty the first time and that is why i saw steam?

Is a Pressure Test the best thing i can do, or get antifreeze now since i added distilled water and fill it up and see if it returns? And if Pressure test, HOW?

Also, my temperature and oil pressure gauges domt workl OR i cant see them. How do i check on that?

1984 Camaro 2.8L Auto, thanks!

 

The first time i drove the car it ran great but i noticed steam coming from below the carburetor and a hiss sound, and when i drove it with the cap off it did neither of these things and i saw no steam or smoke. Here is the update: Ok I drove the car with the radiator cap off and the radiator appeared to be empty. As to if the Water Pump is leaking, i dont know, not sure if it is from that. I did add 3/4 a gallon of water the radiator took it all and i saw no smoke or steam with the cap off, except for a small amount when the car was turned off, and i saw the water level at halfway in the radiator.

Maybe the radiator was empty the first time and that is why i saw steam?

Is a Pressure Test the best thing i can do, or get antifreeze now since i added distilled water and fill it up and see if it returns? And if Pressure test, HOW?

Also, my temperature and oil pressure gauges domt workl OR i cant see them. How do i check on that?

1984 Camaro 2.8L Auto, thanks!

 

Obviously.
with no cap you have no pressure in the system so coolant just boils out the radiator cap hole
instead of being forced out under pressure where the leak is

Yes

Check gauges fuse.
If you are low on coolant then no coolant will be touching the sender unit to make gauge work