Replaced heater hose on drivers side the other night. Temp guage is going up to normal....But no heat, blowing cold air. Do you have to prime this thing or what?

 

Damn, i dont knwo what could be the problem. Are you loosing coolant anywhere? maybe your heatercore is gone. beats me.

 

Make certain radiator is filled to top. Check overflow level also. If radiator is low, no heat.

 

Might be a bubble in the hose/heatercore that stops water flow. You might need to force water/coolant thru until it's gone. I've seen this before, tho I don't remember what car it was. Sorta like a vapor lock.

B

 

Was your heat on when you put the new coolant in? if not, chances are that there is air in the system - most probably in the heater core. Bleed the whole system with the heat on in the car, I'll bet you have to add quite a lot of coolant - and don't forget to put some in the overflow bottle.