rdorris84
12/20/2007 10:46:55 PM
where is the heater control valve for 87 caprice
astroDZak
12/21/2007 4:07:31 AM
Most GM vehicles use a vacuum controled valve located in the heater hose. The valve may screw right into the block or be independent and supported by the hose.
Look for the heater hose and a vacuum hose going to the same valve.
