Breeze, Cirrus & Stratus (Manifold Gauge Set Method)
- Attach clamp-on Thermocouple (80PK-1A) to liquid line, as close to condenser outlet as possible. Attach manifold gauge set to vehicle.
- Set parking brake, and place transaxle in Park. Start engine and allow to idle. Set A/C controls to outside air, panel mode, full cool, and high blower speed. Turn A/C on, and open windows. Operate system for a few minutes to allow system to stabilize.
- Place cardboard over front grille area, to block airflow through part of condenser, to set A/C pressure to 260 psi (18.3 kg/cm2
). This will stop cooling fans from alternating speeds, and maintain constant pressure.
- Record temperature reading at liquid line and discharge pressure reading on gauges. Compare readings with values in REFRIGERANT CHARGE LEVEL table.
- Depending on system charge condition, corrections are made 2 ounces at a time. Each time a correction is made, recheck readings to ensure proper charge. For system refrigerant capacity, see REFRIGERANT OIL & REFRIGERANT SPECIFICATIONS article.
REFRIGERANT CHARGE LEVEL
| Liquid Line Temp. - °F (°C) |
Discharge Pressure - psi (kg/cm2
) |
| 40 (4.4) |
53-75 (3.7-5.3) |
| 60 (15.6) |
81-104 (5.7-7.3) |
| 80 (26.7) |
111-142 (7.8-10.0) |
| 100 (37.8) |
156-194 (11.0-13.6) |
| 120 (48.9) |
208-259 (14.6-18.2) |
| 140 (60.0) |
272-331 (19.1-23.3) |
| 160 (71.1) |
353-420 (24.8-29.5) |
| 180 (82.2) |
447-516 (31.4-36.3) |