AC constantly switching from recirculating mode to outside air

Hello,

It sounds like you have a reticulation mode door actuator that is not working. Here is a guide to help you see what I am talking about with diagrams below to show you the location for your car:

https://www.2carpros.com/articles/replace-blend-door-motor

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken

Had someone put gauges on it and it shows the low pressure high and the high pressure didn't move. Would this blend door cause that? He said we have a clog somewhere.

Nice, it sounds like the compressor is not working right. Here is a guide to help you change it out and diagrams below for your car. When the system is apart check out the inside of the tubes and the orifice to make sure they are clean because sometime compressor seals can be spread inside the system in which case a flush will need to be used.

https://www.2carpros.com/articles/replace-air-conditioner-compressor

You can get a new compressor from Amazon for $151.00

https://www.amazon.com/gp/product/B000C984Z2/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=2carprcom-20&creative=9325&linkCode=as2&creativeASIN=B000C984Z2&linkId=13d1724504b390dfa958adaedaf77c3d

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken