Squealing Electronic climate control 99 CV

Hello,
My 99 Crown Vic's Automatic climate control lets out a high pitched squeal sometimes. If the system is turned off for a few minutes it starts to
squeal. Selecting any setting stops the squealing for a short period. It ussually takes a few minutes of changing settings before the squealing sone goes away.
Any advise or similar experiences?
Thanks
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Patrick Fitzgerald opined in

Not clear... if it is squealing and you turn the engine off, does it stop immediately.. or just die out, lasting as long as the engine is turning?
It COULD be a vacuum leak.
Whatever, the EASY way out could just be to go to a salvage yard and get a different one.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.