With the engine at full operating temp, locate the 2 heater hoses where they go into the firewall and feel them to see if they are both hot to the touch. If they are both hot, the heat in that vehicle is controlled by a blend door that regulates heated air flow. it is operated by an electric motor/actuator. The problem can be that the actuator is stripped or inoperative or the door itself could be damaged. This is what needs to be determined by examining the actuator and see if it is responding to heat change commands or not.

Answered by Wrenchtech (expert)
14,729 answers provided

Are the heater hoses hot? Do live in an extremely cold region? Could be problem with temp door under the dash.

As far as your engine, what is your normal operating temp, in degrees F?

Answered by JDL (expert)
14,402 answers provided

Hello wrench, didn't see your post. Have a good day.

Answered by JDL (expert)
14,402 answers provided

No problem. Have a great day.

Answered by Wrenchtech (expert)
14,729 answers provided