How to Add Freon to a 1995 Buick Regalby Christopher L. Ingersoll
Air Conditioning does not come stock on every vehicle but some would argue that depending on where you live, it's an absolute necessity. Air Conditioners work by pulling the heat of air using a coolant called Freon and then blowing it into the cab of the car. Unfortunately, the Freon is a consumable product like the oil or windshield wiper fluid and will eventually run out, leaving your air conditioner blowing out tepid air at best. When the car is out of Freon, it can be refilled or "recharged," bringing back the cool air.
Locate the air conditioning compressor, next to the battery.
Back-off the valve handle that comes in the kit and screw it into the refrigerant kit until the rubber O-ring is inside the threaded portion.
Remove the dust cap from the "low-side" charging connection.
Attach the quick fitting on the kit hose to the charging connection.
Start the engine and let it run for about 10 minutes with the air conditioner on taking car that the hoses aren't near the engine fan and other moving parts.
Make sure the compressor is on.
Turn on the valve handle until you hear the refrigerant release.
Add refrigerant until the accumulator surface and the evaporator inlet pipe are about the same temperature to touch.
Place thermometer on the air conditioning vent in the cab. The temperature should read 40 degrees if system is fully charged.
Close the valve on the canister and store any excess.
Put dust cover back on the "low-side" charging connection.
- If you suspect a leak in the system, get a Freon bottle that has red dye in it so that it will show where the leak is originating.
Items you will need
- R-134a charging kit
- "General Motors, Haynes Repair Manual"; Robert Maddox, John H. Haynes; 2002
- thermometer image by Dusan Radivojevic from Fotolia.com