GMC Chevrolet Camaro 1998 Service Manual page 134

1-24 HVAC System - Manual HVAC
Step
Action
82106
3. Inspect the lines.
4. Inspect the evaporator inlet/outlet.
5. Inspect the accumulator dryer inlet/outlet
connections.
6. Inspect the compressor rear head.
7. Inspect the housing joints.
8. A leak is indicated when the audible tone goes
from a steady 1-2 clicks per second to a solid
alarm. Adjust the balance knob frequently in order
to maintain the 1-2 clicks per second.
If a leak is not found, proceed to the Refrigerant
Leak Diagnosis table:
Leak Testing
Value(s)
Yes No
DEFINITION: Inspecting the refrigeration system for leaks.
1. Inspect the refrigeration system components for
1
proper torque.
-
2. Tighten the components as needed .
. . Ha~ the leak stopped? System OK Go to Step 2
1. Inspect the 0-rings for damage, dirt or lack of
lubrication.
2
-
2. Replace the 0-rings as needed.
Has the leak stopped? System OK Go to Step 3
1. Inspect the refrigeration system connections. Refer to
3
Electrical Diagnosis.
-
2. Repair as needed.
Has the leak stopped? System OK Go to Step 4
1. Turn the blower to the highest setting for at
least 15 seconds.
2. Wait for 1 O minutes.
4
3. Remove the blower motor resistor. Refer to Blower
-
Motor Resistor Replacement.
4. Insert the probe into the resistor opening.
Is the alarm solid? Go to Step 5 Go to Step 6
5
Repair the leak as needed.
-
Has the leak stopped? System OK Go to Step 6
1. Blow compressed air behind and in front of the
compressor clutch and pulley for at least 15 seconds.
6
2. Wait 1-2 minutes.
-
3. Insert the probe behind and in front of the
compressor clutch and pulley.
Is the alarm solid? Go to Step 7 System OK
7
Repair the leak as needed.
- -
Has the leak stopped?
System OK
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