Heat Problems 1991 Ranger 2.9
I have a 1991 Ford Ranger 2.9,and I am having a heat problem I did change the thermostat but no heat yet,this is what I found so far. I checked top radiator and its hot,the bottom hose on radiator is cold. the 2 hoses running to the heater core are hot. I do not see a weep hole on the water pump but I am not loosing any antifreeze. Could the water pump be shot? or could it be the Temp.Sender unit? I do not think it is the blend door. i did look at the heater core no leaks that i could see. any other thought? please help I need heat soon.

