Hey peeps i neep some serious help on this one.
I've notice when i stop an get out of my 93 GS#)), i hear something boiling under my hood.
It turns out to be the coolant in my resevoir.
What in the B-Jesus cold be causing that.

 

Numerous reasons for a car to overheat.

Low pressure (leak)
Fan not working(clutch shot)
blow head gasket
bad water pump
thermostat stuck

 

Are you running a coolant mixture or just water ?

 

my friends GS300 did the samething, i had to change the waterpump. when i took the waterpump out, i found out that the blades inside where not turning. but i also changed the thermostat due to the car been overheated. and i also changed the radiator.

 

The same thing just happen to me, do a pressure test and see if you have a leak first, then go from there.

 

Start small work your way up from there. Coolant cap>T-stat>water pump>radiator.

 

Thanks peoples, I'll try this.