i have a 90 integra gs and it keeps over heating. it fine when i am driving but when i am at a stop light for longer then 15 second it starts to over heat fast. while i am at the stop light i rev the motor to 2000 rpm and it normaly stays cool. i already fix the thermastat and the rediator is only 4 years old....any one have any ideas to fix this probleme? anything help would be nice

thank you

 

have you checked the coolant level in the radiator?
it doesnt matter how old it is.. it oculd still be leaking.

 

its not leaking and i did a pressure test on the radi and radi cap

 

possibly your head gasket?

 

dang i hope not...i was hoping it was maybe a water pump or a cloged raidiator?

 

Is your fan working?

 

dang i left a bunch of stuff out...yes the fan works

 

Air pockets in the cooling system? Did you bleed these when you changed your coolant?

 

yes ...there was screw and when it leaked water a closed it up

 

if it cools down when you accelerate is cuz your thermostat is opening up.. its your thermostat.. more then likely..not enuf anti freeze.. so it got stuck.. check your coolant/water ratios