A/C System Performance
- Park vehicle out of direct sunlight. Warm engine to normal operating temperature and run at 1500 RPM. Set A/C controls to recirculated air, panel (face) mode, full cold, and A/C switch on. Verify A/C compressor and condenser fan are on.
- Set blower/fan on high speed. Open hood, windows and doors. Operate system until refrigerant pressures stabilize. Insert thermometer in center vent, and measure air discharge temperature. See A/C CENTER OUTLET VENT TEMPERATURES table. Temperature must be as specified at center vent, with high side low pressures within specification. See A/C REFRIGERANT SYSTEM PRESSURES table.
A/C CENTER OUTLET VENT TEMPERATURES
| Ambient Temp. - °F (°C) | Center Outlet Vent Temp. - °F (°C) |
|---|---|
| 68 (20) | 37-42 (2.7-5.8) |
| 77 (25) | 44-49 (6.7-9.7) |
| 86 (30) | 51-56 (10.5-13.6) |
| 95 (35) | 58-64 (14.5-17.5) |
A/C REFRIGERANT SYSTEM PRESSURES
| Ambient Temp. - °F (°C) | High-Side Pressure - psi (kg/cm2 ) | Low-Side Pressure - (kg/cm2 ) |
|---|---|---|
| 59 (15) | 84-134 (5.9-9.4) | 12-27 (.9-1.9) |
| 68 (20) | 121-171 (8.5-12) | 18-36 (1.3-2.5) |
| 77 (25) | 159-209 (11.2-14.7) | 27-43 (1.9-3.0) |
| 86 (30) | 199-249 (14.0-17.5) | 33-50 (2.3-3.5) |
| 95 (35) | 236-284 (16.6-20.0) | 43-58 (3.0-4.1) |