changed therm now no heat??
 

Changed thermostat out and now I still have no heat is it the heater core?? or something else??

RE: changed therm now no heat??
 

Check your coolant level.

RE: changed therm now no heat??
 

coolant is fine what else could it be ???

RE: changed therm now no heat??
 

Your sure the thermostat isn't stuck open?

RE: changed therm now no heat??
 

how do I tell it`s brand new just put it in today??

RE: changed therm now no heat??
 

WHat does your engine temp read?

RE: changed therm now no heat??
 

gauge reads right under 210 after the new thermostat was put in. After the truck is warmed up I can turn the heat on for about 10 seconds then it goes back to cold air???[sm=icon_flaming.gif]

RE: changed therm now no heat??
 

In my experience if one of theheater hoseswas significantly cooler than the other it was the heater core.

RE: changed therm now no heat??
 

I always thought that the heater core leaks when its bad.

RE: changed therm now no heat??
 

Could be an air pocket.