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98 STS Blend Doors?

6715 Views 16 Replies 6 Participants Last post by  MoistCabbage
I have had the STS about 9 months now and having gone through summer/winter season, I think I may have blend door issues.

In the winter, the heat is working, but the car is still cold.
In the summer, the air is working, but the car is still hot.

I believe from the blend doors not closing completely and letting outside air into the cabin. Gets a little better on Recirculate, but still not blocking the outside air.

Where are the blend doors on a 98 STS? No codes.

Robert D
1 - 2 of 17 Posts
Pull the DTC's. If you have a door problem, you should have a code for it. Be sure to post the code AND definition. We don't have them memorized.
Does your ambient air temperature read the correct temperature?
1 - 2 of 17 Posts
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