Cooling problem after timing belt install
I replaced the timing belt, idlers, tensioner, and put in a new GMB water pump.
Simply put, the thermostat is sticking when driving. I've tried 2 replacement ones from the auto store and an OEM one from subaru. All seem to stick when driving, it never overheats, always blow hot air, and not losing coolant at all. Idling up to temp it opens like it should and cools fine, driving around it closes and the temp. stays around 194-199* on the road. When you stop and idle after driving the bottom radiator hose is cold and the temp gets up to 205* then turns on the fan which brings it down to 199* very slowly (when normally it will go down to 189*) the fans won't cool it down or turn off until i start driving again, tstat still closed. Sometimes the thermostat opens if you sit for a few minutes (starts opening at around 203*) then it cools fine until you drive again. I've replaced the "radiator cap" and been through 3 tstats. If i drill a hole in the top of them (1/8") they work too well and the oil never gets up to temp and the coolant stays around 150. So i'm very confused and running out of ideas. I've burped the system by filling it up at the coolant tank by the tubo, idling it with the heat on and holding it at about 2000 rpms for a few minutes till its done burping. Im getting ready to try a crucial racing tstat next b/c i can't understand why the tstats would stick like that. Any help?????
-02 WRX Blouch 18G'd Juggernaut of Beastliness.