air and heating system on 2002 Dodge Ram 1500

when i turn on the air condition antifreeze starts to run inside the cab of the truck.this also causes my truck to run hot.

by in Mexia, TX on April 02, 2010
1 answer 1 comment
ANSWER by , April 02, 2010
heater core is cracked
COMMENT by , April 02, 2010
what is causing this