Engine Cooling problem
1997 Toyota Rav4 4 cyl Four Wheel Drive Manual 125000 miles
I just replaced the water pump, radiator, with upper and lower hoses, thermostat, timing belt, and expansion tank. The car starts and runs fine but I am not getting heat. I had installed a flush kit on inlet heater hose at one point. Now when there is no heat the heater hoses are not hot and don't seem to have water in them. If I crack the cap on the flush kit thing and gradualy let air out the water starts to circulate and I get heat. But within 5 minuets or so the circulation to heater core slows or stops and it start blowing just luke warm or cool air again. If I crack it again I get heat for a while? Any help?