replaced thermostat and filled rad
poor heat from heater in 1999 durango the rad is full on 1999 Dodge Durango
3 answers 2 comments
possibly a blocked heater
not that ...wonder if there is some sort of valve on heater hose...hoses are colder than rad hoses
could be a bad heater control valve if appl. to this model or heater controls. seek a diag and insp
Do you have any residue on the inside of windshield, or any sweet smell coming from the the passenger side ,just below the glove box? theres a very good chance the heatercore is done.