Hummer0688

Alright i have a 1984 Mustang Gt 5.0 stock car... It is having some over heating problems after driving it for about 40 minutes... When i stop its bubbling out of the overflow bottle... If anyone has any suggestions please let me know... Thanks guys.

Hummer0688

Also just want to let you know that i replaced the Thermostat to a 180... I replaced the gooseneck which is leaking a bit now but not a whole lot... And it is still overheating... Could the heatercore be doing that because it leaks as well... Thanks...

Gary H

Have you ever replaced the radiator? What about the fan clutch? Does it overheat around town, or highway? What PSI radiator cap?

Hummer0688

Well the car sat about 6 years before i just recently got it... I have not replaced neither the clutch fan or the radiator... Yet... It has a 16 radiator cap... I have a 15 if that would help ... It will overheat anywhere... Whether im in town or highway... But its fine short 30 minute drives... And if i dont drive like a jackass i guess ...

Shelty

that could be part of the problem.

Gary H

Is it overheating on the temp gauge, or just comming out the overflow? An try turning the fan by hand. If it's real easy, or you cant turn it at all, the clutch is shot. My 2 guesses would be that the radiator needs a flush from sitting, and that the cap isnt holding pressure like it should.

Hummer0688

It is on the L of normal on the temperature gauge... And when i stop you can hear the Antifreeze boiling out of the overflow and onto the ground... And i can turn the clutch fan easily...

Blckstng93

Overheating but the gauges is at the L? Apparently the gauge is shot. Did you put the thermo in the right way? Is there a small hole on one side of it? it should be at the top of the thermo, it lets air bubbles out. Is the water pump leaking? Check the weep hole under it. Should be dry if good. Flush the system and see if it helps. Also look into the rad, if its caked up with white stuff its junk.

stang8689

I would flush the whole coolant system first, it did sit for 6 years