sounds like blend door is not working right.

Answered by fixitmr
24 questions asked

Inspect the air blend/mode/recirc doors/actuators/vacuum hoses-also check the HVAC control module

Answered by rasmataz
68 questions asked

read here. http://www.ehow.com/how-does_4779539_troubleshooting-astro-van-heating-problems.html

Answered by fixitmr
24 questions asked

are hoses on firewall at core hot?

Answered by fixitmr
24 questions asked

Yes, the hoses are hot.

Response from David88888888
1 question asked

heater core could be blocked. disconnect the lines and backflush. If that is the cause do it a few times to get it really cleaned out and the water comes out clear.

Answered by M_H_RITZEL (expert)
2,685 answers provided

dont sound like core is plugged.

Answered by fixitmr
24 questions asked

look for a electric temp control motor undr lower right side of dash on hvac case.

Answered by fixitmr
24 questions asked

with heater core eliminated then continue to follow fixitmr on checking the electric control motor.

Answered by M_H_RITZEL (expert)
2,685 answers provided