Hey everyone, kinda stumped on this one..

I like a lot of users, am having some heater issues. I get little to no heat most days, I have done lots of work to resolve this but still no heat. I have done the following:

Flushed the radiator/cooling system
Flushed the heater core, reverse and forward flush with a garden hose
Replaced the thermostat with a 180 degree lower temp thermostat
Replaced the water pump
Bleed the air from the system

Other then replacing the radiator and heater hoses and replacing the heater core Ive done everything. I know the heater core is clean since I have flushed it countless times and made sure the water was flowing clear.

 

Check your blend door to make sure its working right, and i would have put in a 195 stat. You just took 15* of heat away with a 180..

 

I have a simular problem.. heater (once you let it build temp with it off) works good on low.. faster the fan, the less heat.. as if it was not getting enough hot coolant through the system.. but system is circulating the coolant fine.

But, there is also a breeze coming from under the dash.. and really can be felt when its cold.. at higher speeds.. I suspect I have an air leak somewhere, I'm going to go through the firewall and find what is leaking air in and seal up every hole on the firewall, if not for that the heater on low would work fine.

Let you know what i find as well in reference to this.