A/C Refrigerant System Pressures and Temperatures, Checking

A/C Refrigerant System Pressures and Temperatures, Checking







The pressures and temperatures in the A/C system will vary depending on engine speed (RPM), coolant fan speed, engine coolant temperature, A/C clutch engagement, outside temperature, humidity, etc.

Pressure and temperature specifications are based on the following:
- Engine speed (RPM) at 1500
- Fresh air blower on high speed
- A/C adjusted to Max. cooling

Pressure and temperature specifications.

1. Evaporator
2. Low pressure service valve
3. Compressor, low pressure side
4. Compressor, high pressure side
5. Condenser
6. Receiver drier
7. Sight glass
- If equipped
8. High pressure service valve
9. Expansion valve

Pressure and temperature specifications
- Refer to component identification.