A/C System Performance
WARNING: This page is about a different car, the 2001 Pontiac Bonneville and 2000 Pontiac Bonneville. However, it is still accessible from the selected car via links, so may be relevant.
- Park vehicle out of direct sunlight. Ambient temperature must be at least 43°F (6°C). Install manifold gauge set. Start engine. Turn A/C on. Place A/C control to maximum cooling, selector lever on full cold and blower switch on HIGH. Close vehicle doors and windows.
- Insert thermometer in center air outlet. Run engine at idle for 5 minutes. Measure temperature and system pressures. Temperatures and pressures should be within correct range. See A/C SYSTEM PERFORMANCE TEMPERATURE SPECIFICATIONS
and A/C SYSTEM PERFORMANCE PRESSURE SPECIFICATIONS
.
A/C SYSTEM PERFORMANCE TEMPERATURE SPECIFICATIONS
| Ambient Temp. - °F (°C) |
Outlet Vent Temp. - °F (°C) |
| 60 (16) |
49 (9) |
| 70 (21) |
52 (11) |
| 80 (27) |
55 (13) |
| 90 (32) |
60 (16) |
| 100 (38) |
65 (18) |
| 110 (43) |
71 (22) |
| 120 (49) |
73 (23) |
A/C SYSTEM PERFORMANCE PRESSURE SPECIFICATIONS
| Ambient Temp. - °F (°C) |
High Side - psi (kg/cm2
) |
Low Side - psi (kg/cm2
) |
| 60 (16) |
130-160 (9.1-11.2) |
28-34 (2.0-2.4) |
| 70 (21) |
175-205 (12.3-14.4) |
34-40 (2.4-2.8) |
| 80 (27) |
180-210 (12.7-14.8) |
37-43 (2.6-3.0) |
| 90 (32) |
180-210 (12.7-14.8) |
41-47 (2.9-3.3) |
| 100 (38) |
225-265 (15.8-18.6) |
53-63 (3.7-4.4) |
| 110 (43) |
255-295 (17.9-20.7) |
58-68 (4.1-4.8) |