i've replaced the heater core, thermostat and filled my 99 durango with antifreeze and I still get nothing but cold air. Where else should i check so that I can get some heat?
Check the two heater hoses under the hood that goes thru the firewall that connects to your heater core. If both hoses are hot, you have a blend door issue like I did.
If the return heater hose is cold and the supply heater hose is hot, their is a blockage somewhere. Could be the core but doubtful if you just replaced the core with a new core.
If the return heater hose is cold and the supply heater hose is hot, their is a blockage somewhere. Could be the core but doubtful if you just replaced the core with a new core.
Registered User
if you just replaced the core....you ripped the dash apart. Are you sure you got all the hoses, connectors and tubes in place and nothing it kinked?
If you have a new core...and coolant is flowing to it...then its gotta be the blend door is stuck on vent/ac side.
If you have a new core...and coolant is flowing to it...then its gotta be the blend door is stuck on vent/ac side.