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.
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HOMESERVICE MANUALSPLYMOUTH1994SUNDANCE BASE, 2D HATCHBACK, 2.2 D, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 18 (A/C-HEATER SYSTEM - MANUAL)TESTINGA/C SYSTEM PERFORMANCE
1994 Plymouth Sundance Base, 2D Hatchback, 2.2 D, Automatic
A/C System Performance
1994 Plymouth Sundance Base, 2D Hatchback, 2.2 D, AutomaticSECTION A/C System Performance
WARNING: This page is about a different car, the 1994 Eagle Vision, 1994 Dodge Intrepid, 1994 Chrysler New Yorker, 1994 Chrysler LHS, and 1994 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
- Park vehicle out of direct sunlight. Ambient air and vehicle temperatures must be greater than 70°F (21°C). Ensure ambient air temperature reading agrees with overhead console temperature display (if equipped). If temperature difference is significant, A/C system performance results could be affected. Install a tachometer and compressor manifold gauge set. Start engine and allow it to run at 1000 RPM with A/C turned off.
- Close all vehicle doors and windows. After initial compressor cycling, turn A/C on and hold engine at 1000 RPM. Turn mode door selector to RECIRCULATION position. Turn temperature selector to full cold position. Turn fan control switch to high blower position. System is okay if temperature and system pressures are as specified. See A/C SYSTEM PERFORMANCE TEMPERATURE SPECIFICATIONS and A/C SYSTEM PERFORMANCE PRESSURE SPECIFICATIONS tables.
A/C SYSTEM PERFORMANCE TEMPERATURE SPECIFICATIONS
| Ambient Temp. °F (°C) | Outlet Vent Temp. °F (°C) |
|---|---|
| 70 (21.1) | 45 (7.0) |
| 80 (26.7) | 49 (9.4) |
| 90 (32.2) | 54 (12.2) |
| 100 (37.8) | 56 (13.3) |
| 110 (43.3) | 59 (15.0) |
A/C SYSTEM PERFORMANCE PRESSURE SPECIFICATIONS
| Ambient Temp. °F (°C) | High Side psi (kg/cm2 ) | Low Side psi (kg/cm2 ) |
|---|---|---|
| 70 (21.1) | 112-210 (7.9-14.8) | 10-37 (.7-2.6) |
| 80 (26.7) | 131-214 (9.2-15) | 17-38 (1.2-2.7) |
| 90 (32.2) | 180-215 (12.7-15.1) | 21-47 (1.5-3.3) |
| 100 (37.8) | 203-288 (14.3-20.2) | 28-51 (2-3.6) |
| 110 (43.3) | 232-331 (16.3-23.3) | 30-53 (2.1-3.7) |
RENDER: 1.0x
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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.