The heater stoped working ac works fine fan works fine you turn on heater will not blow hot air
Tuesday, December 1st, 2009 AT 10:26 PM
2 Replies
CJGREGG
MEMBER
2 POSTS
Could be one of two problems. You could have a clogged heater core or a blend door that isnt working. Check both sides of the heater core when the truck is at running temp. Both sides should be warm. If both sides are warm then you have an issue with the blend door. Could be a control problem or the blend door motor its self
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Tuesday, December 1st, 2009 AT 11:49 PM
JODIPERSILVER
MEMBER
1 POST
Please let me know if you find anything out about this. Mine is a 99, it will blow hot air if I am on the highway, after it gets warmed up, but as soon as I slow down or idle it blows cold.
Any help would be appreciated!