Oldsmobile/Buick Repair: air conditioning, vacum pump, vacuum pump

Question
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Followup To
Question -
I have a 98 olds intreigue. Is it possible for me to change the compressor by my self. Do I need special equipment? Thanks
Answer -
HI TOM.YES IT IS POSSIBLE TO CHANGE THE COMPRESSOR.BUT YOU WILL NEED TO FOLLOW INSTRUCTIONS VERY CAREFULLY.THEN WHEN DONE YOU WILL NEED TO TAKE IT AND GET IT EVACUATED AND RECHARGED.YOU CAN BUY THE FREON AND HOSE TO CHARGE IT.BUT UNLESS YOU UNDERSTAND AND HAVE A VACUM PUMP AVAIL.YOU WILL NOT BE ABLE TO MAKE IT WORK.BUT YOU WILL SAVE A LOT BYE CHANGEING IT.BUT YOU MUST BE VERY CARE FUL AS THE FREON IS PRESSUREIZED..GOOD LUCK.PLEASE TAKE A MIN TO RATE MY HELP IT IS IMPORTANT TO ME TY BILLYMAC
Hi again, I found a vacuum pump at harborfreight. It says its for this purpose. Can you explain how to do it? In laymans terms please.Thanks


Answer
HI TOM,YES YOUR AC SYSTEM HAS A LOW SIDE AND A HIGH SIDE.AS IN LOW PRESSURE AND HIGH PRESSURE.THE PUMP HAS TO HAVE A HOSE FOR 134-A FREON MOST TODAY DO.FIRST THING YOU WANT TO DO TOM,IS YOUR NEW COMP BUY OIL FOR IT AT THE PARTS STORE.TAKE THE FACTORY PLUGS OUT OF THE HOLES.POUR 4 OZ OF OIL IN IT.TURN THE COMP OVER BYE HAND ATLEAST TEN TIMES.THIS IS TO PREVENT DRY RUN .INSTALL YOUR COMP CAREFULLY INSTALLING HOSES ANDSEALS.NOW HOOK UP YOUR PUMP VAC.AND LET IT PUMP THE SYSTEM FOR 30 MIN YOU WON,T NEED THE READINGS UNLESS YOU HAVE GUAGES IF YOU DO THEN IT SHOULD PULL DOWN TO 18 IN VAC.IF YOU DON,T HAVE GUAGES DON,T WORRY ABOUT THE READINGS.YOU SHOULD BUY 3 CANS OF 134-A FREON.SHOULD BE BETWEEN 5 AND 7 DOLLARS A CAN.INSTALL ALL THREE CANS PUT IN ONE AND A HALF OR SO AND START ENG TURN ON AC FINISH WITH FREON.GOOD LUCK BILLYMAC