Air Conditioning problem
1998 Other GMC Models V8 Four Wheel Drive Automatic
front a/c works fine. Rear a/c somtimes blows cold and sometimes blows warm took to dealer and was told that the rear expansion valve needs to be replaced.I would like to know how difficult this will be with the proper tools? Where this part is located and any usefull advice there may be. This is a 98 gmc suburban!