I start driving my car is get will over heat only after drving it for 5mins, then about a few more mins of drving it will cool down back to normal temp and stays there all the time, no matter how much i beat on it. its only when I start driving the car after its been setting cooling down.

Its a 91 ka24det. it only has the stock radiator from a dohc and i know that's one prob but if that was really the prob it would over heat all the time.

I replaced the water pump, thermostat, checked for leaks and have two fans on, that run at the right temp. The only thing i'm missing is that heater hose that runs from the back of the motor behind the thermostat housing. Now could that be the probelm. I dont see how a little hose like that could cause this but its getting to be a big problem.

any help would be great

thx,
mark