Insufficient A/C Cooling Output
Fig. 1:
NOTE:
- If evaporator -1- ices up, reducing air flow after a short drive, check insertion depth of A/C evaporator temperature switch -E33- sensing tube and replace if necessary.
- If water sprays from air outlets -2-, check evaporator water drain valve.
- Coolant level cannot be read in sight glass (If equipped); mixture of R-134a and PAG oil can foam.
Test Conditions:
- Condenser and radiator are clean, spray clean if necessary
- Condenser and radiator air ducts properly installed, unobstructed
- Do not expose vehicle to direct sunlight when performing A/C system cooling output check
- Blower -3- runs in all 4 speeds
- Engine speed at approx. 2000 RPM
- Instrument panel air vents open
- Set ventilation control knobs as shown: A/C switch -E35- ON, "Max" button -4- pressed
- Compressor must run
- Check components and functions using following table:
Once above tested components check OK, check A/C system cooling performance. Numbers for components in this table correspond with numbers assigned to components in Fig. 1, above.