2.4 overheating can't figure out why..Updated Fixed
I'm new to this forum and site but I've been reading posts here for a while.
I need some help with this car, but first a little background history.
Got this 98 Stratus 2.4L DOHC given to me back in the beginning of 05 by a friend. The engine was shot cause his family never changed the oil for aleast a year.
I swaped the engine with an identical 2.4L from the wreckers that supposedly had 115,000 km on it.
Before dropping it in I changed theWater Pump, Rad hoses, T-Stat, Timing belt, etc.
I've done regualar matainence and tune ups on it ever sinceI put it on the road late in 05.
Recently I've had the car overheat on me multiple times.
After the first time overheating, I popped the T-Stat out and ran it like that for a week (to see if it was the T-Stat) before it started to overheat again.
The Rad fans are turning on when they should, the Water Pump, Tenstionerand Timing belt looklike new(only 30,000km's on the pump and belt). The Rad looks in good condition.
I even pressure tested the cooling system before I took it apart (with a special tool in place of the fill cap) to see if the head gasket was leaking, and nothing just constant pressure at 16 Psi.
This problem has me stumped. The only thing I can think of is maybe that the Head Gasket is done but I'm not quite convinced because there is no evidence of this (leaks, fluid loss, fluid mixture, etc.)
As of right now the car is up on stands and I have a new Rad, Water Pump, T-Stat and Coolant Temp Sensor ready to be installed.
I don't want to have to tear into this again or have the car start overheating after putting her back together.
Any suggestions, ideas or help would be great,
Thanks in advance,