I believe the A/C pump on my "F" was rebuilt in 1978. My best recollection of the period 1979-1982 was that the A/C worked fine. The car was in a museum from 1983-2004. I'm reluctant to try the A/C, as there is a (good?) chance there is no Freon left in the system, and running it could be harmful to the pump. A local fellow has 2 lbs. of R12, but estimates it would take about 3.5 lbs. to charge the system if it indeed is empty. So I have two questions: 1) -- is the original system convertible to R-134? Are conversion kits for this pump/system available? Are there other options for converting the system to R-134? 2) -- are there source(s) for a few of pounds of R12? Any help on this would be most appreciated.... Mike in "air-conditioning-needed" Lake Odessa, Michigan To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/