Expansion Valve
- Connect manifold gauge set to compressor. Run engine at fast idle with A/C on. Observe and record high and low pressure gauge readings.
- If low pressure reading is less than specification, check expansion valve and receiver-drier. If high pressure reading is more than specification, tighten remote bulb holder or replace expansion valve. See EVAPORATOR, EXPANSION VALVE & THERMISTOR and/or RECEIVER-DRIER under REMOVAL & INSTALLATION.
EXPANSION VALVE PRESSURES
| Year Model | High Side psi (kg/cm2 ) | High Side psi (kg/cm2 ) |
|---|---|---|
| 2000 | 21.3-35.5 (1.5-2.5) | 200-227 (14.1-16.0) |
| 2001 | 33-50 (2.3-3.5) | 200-249 (14.1-17.5) |