I turn the A/C to recirculate and it still blows outside air in. I think my vent is stuck. How do I unstick this and where is it.

Thanks

The recirculate vent takes in part of the air from inside and part comes in from the outside. What fraction depends on the car and the speed.

One test is to have the car operating on high blower in dash vent air conditioning mode and then push or select recirculate. After a few seconds you should hear more noise as air is taken from inside. The return opening is above the driver'* foot.

Then you should hear less noise when recirculate is turned off.

Don't try this when first turning the car on air conditioning when the car is already hot inside if you have an automatic temperature control system; it will automatically pick recirulate for a few minutes to cool the car more quickly.

There is not an increase in noise when recirculate is selected, whether moving or not. I am aware of this. I need to know how to fix it.

What year and do you have ECC?

1999 with ECC