Performance Test Procedure
WARNING: This page is about a different car, the 2003 Dodge Intrepid, 2003 Chrysler Intrepid, 2003 Chrysler Concorde, and 2003 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.
Before performing the following procedure, ensure air temperature in test room and in vehicle is 21° C (70°F) minimum for this test. Refer to PLUMBING .
NOTE:
When connecting the service equipment coupling to the line fitting, verify that the valve of the coupling is fully closed. This will reduce the amount of effort required to make the connection.
- Connect a tachometer and manifold gauge set or an A/C Charging/Recycling Station.
- Set controls:
MTC (Manual Temperature Control) System:
- A/C ON
- Panel Recirculation
- Temperature to full cold
- High blower
ATC (Automatic Temperature Control) System:
- Rotate blower knob to high position (full clockwise)
- Set temperature to the LO position
- Push panel mode button
- Push RECIRC (Recirculation) button (A/C and RECIRC symbols should be lit)NOTE: The word MANUAL should appear in the ATC display, confirming that the system is set manually.
- Start engine and hold at 1000 RPM with A/C clutch engaged.
- Engine should be warmed up with doors and windows closed.
- Insert a thermometer in the left center A/C outlet and operate the engine for five minutes. The A/C clutch may cycle depending on ambient conditions.
- With the A/C clutch engaged , compare the discharge air temperature to the A/C Performance Temperature & Pressure Chart (Fig 1).