1996 winstar Surge when heater on

Van runs great except with the hearter on with the fan off and then has a bad idel surge, I believe my A/C charge is low since the AC wont come on, all fuses ok any suggestions please respond to snipped-for-privacy@aol.col,
thank you very much. scott

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

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.