A/C System - Performance Test
NUMBER: 24-005-01GROUP: Heating & A/C
DATE: Apr. 13, 2001
SUBJECT:
A/C Performance Test
OVERVIEW:
This bulletin provides the Service Manual A/C Performance Test information.
MODELS:
2001 (PT) PT Cruiser
DISCUSSION:
The 2001 PT Cruiser Service Manual (Publication No. 81-370-1111) does not contain A/C Performance Test information. The following A/C Performance Temperature Chart and A/C Performance Test should be inserted near page 24-16 of the Service Manual.
A/C PERFORMANCE TEMPERATURES
NOTE:
THERE IS NO DISCHARGE PORT ON VEHICLES BUILT BEFORE JULY 10, 2000 (MDH 0710XX), THEREFOR THE COMPRESSOR DISCHARGE PRESSURE CANNOT BE CHECKED.
A/C PERFORMANCE TEST:
Review the Service Precautions and Warnings under Diagnosis and Testing in Group 24 of the service manual before performing this procedure. Air temperature in the test room and on the vehicle must be 21° C (70° F).
1. Connect a tachometer and manifold gauge set.
2. Set control to A/C, RECIRC, and PANEL, temperature lever on full cool and blower on high.
3. Start engine and hold at 1000 rpm with A/C clutch engaged.
4. Engine should be warmed up with doors closed and windows open.
5. Insert a thermometer in the center A/C panel outlet and operate the engine for five minutes. The A/C clutch may cycle depending on ambient conditions.
6. With the A/C clutch engaged, compare the discharge air temperature to the A/C Performance Temperatures Chart.
7. If the discharge air temperature fails to meet the specification in the Performance Temperature Chart, reclaim all the refrigerant and recharge per the underhood A/C label.
POLICY:
Information Only