Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1987 Oldsmobile ToronadoFACTORY OEM SERVICE PROCEDURE
Chart 10, A/C System Performance Test: Notes
SYSTEM PERFORMANCE CHART (AT 70°F/21°C AMBIENT AIR TEMPERATURE)
| Application | Specification | ||||
|---|---|---|---|---|---|
| Ambient Air in Degrees °F/°C | 70°F/21°C | ||||
| Hi Side Pressure (1) | 149 PSI | ||||
| Pressure Plus and/or Minus 20 PSI (+/- 140 kPa) | 1025 kPa | ||||
| Lo Side Pressure (1) | 25 PSI | ||||
| Pressure Plus and/or Minus 2 PSI (+/- 8 kPa) | 170 kPa | ||||
| Center A/C Outlet Temperature (2) (+/- 2°F (1°C)) | 50°F (10°C) | ||||
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SYSTEM PERFORMANCE CHART (AT 80°F/27°C AMBIENT AIR TEMPERATURE)
| Application | Specification | ||||
|---|---|---|---|---|---|
| Ambient Air in Degrees °F/°C | 80°F/27°C | ||||
| Hi Side Pressure (1) | 178 PSI | ||||
| Pressure Plus and/or Minus 20 PSI (+/- 140 kPa) | 1225 kPa | ||||
| Lo Side Pressure (1) | 27 PSI | ||||
| Pressure Plus and/or Minus 2 PSI (+/- 8 kPa) | 185 kPa | ||||
| Center A/C Outlet Temperature (2) (+/- 2°F (1°C)) | 52°F (11°C) | ||||
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SYSTEM PERFORMANCE CHART (AT 90°F/32°C AMBIENT AIR TEMPERATURE)
| Application | Specification | ||||
|---|---|---|---|---|---|
| Ambient Air in Degrees °F/°C | 90°F/32°C | ||||
| Hi Side Pressure (1) | 214 PSI | ||||
| Pressure Plus and/or Minus 20 PSI (+/- 140 kPa) | 1475 kPa | ||||
| Lo Side Pressure (1) | 29 PSI | ||||
| Pressure Plus and/or Minus 2 PSI (+/- 8 kPa) | 200 kPa | ||||
| Center A/C Outlet Temperature (2) (+/- 2°F (1°C)) | 54°F (12°C) | ||||
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SYSTEM PERFORMANCE CHART (AT 100°F/38°C AMBIENT AIR TEMPERATURE)
| Application | Specification | ||||
|---|---|---|---|---|---|
| Ambient Air in Degrees °F/°C | 100°F/38°C | ||||
| Hi Side Pressure (1) | 272 PSI | ||||
| Pressure Plus and/or Minus 20 PSI (+/- 140 kPa) | 1875 kPa | ||||
| Lo Side Pressure (1) | 33 PSI | ||||
| Pressure Plus and/or Minus 2 PSI (+/- 8 kPa) | 230 kPa | ||||
| Center A/C Outlet Temperature (2) (+/- 2°F (1°C)) | 56°F (13°C) | ||||
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FREON PRESSURE/TEMPERATURE RELATIONSHIP CHART - LOW SIDE (1)
| Pressure (PSI) | Tempurature °F (°C) | ||
|---|---|---|---|
| 50 | 53 (12) | ||
| 52 | 55 (13) | ||
| 54 | 57 (14) | ||
| 56 | 59 (15) | ||
| 58 | 60 (15.5) | ||
| 60 | 62 (16.6) | ||
| 62 | 64 (18) | ||
| 64 | 65 (18.5) | ||
| 66 | 67 (19.5) | ||
| 68 | 68 (20) | ||
| 70 | 70 (21) | ||
| 72 | 72 (22) | ||
| 74 | 74 (23.5) | ||
| 76 | 75 (24) | ||
| 78 | 76 (24.5) | ||
| 80 | 77 (25) | ||
| 82 | 79 (26) | ||
| 85 | 81 (27) | ||
| 88 | 83 (28.5) | ||
| 90 | 84 (29) | ||
| 92 | 85 (29.5) | ||
| 95 | 87 (30.5) | ||
| 98 | 89 (31.5) | ||
| 100 | 90 (32.5) | ||
| 102 | 91 (33) | ||
| 105 | 93 (34) | ||
| 108 | 95 (35) | ||
| 110 | 96 (35.5) | ||
| 112 | 97 (36) | ||
| 115 | 99 (37) | ||
| 118 | 101 (38.5) | ||
| 120 | 102 (39) | ||
| 125 | 104 (40) | ||
| 130 | 107 (42) | ||
| 135 | 109 (43) | ||
| 140 | 112 (44.5) | ||
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Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.