Mazda CX-9 Grand Touring 2009 Manual page 1765

Are the piping connections
free of oil grime? (Visual
inspection)
Are the piping connections
free of gas leakage?
Are the piping installation
points on the condenser free
of gas leakage?
Are the piping installation
points on the receiver/drier
free of gas leakage?
10
Are the piping installation
points on the A/C
compressor free of gas
leakage?
Are the piping installation
points on the A/C unit free of
gas leakage?
Perform gas leakage
inspection using a gas leak
tester.
Are the above items normal?
INSPECT EVAPORATOR PIPING
CONNECTION IN A/C UNIT FOR
GAS LEAKAGE
11
Are piping the connections for the
evaporator in the A/C unit free of
gas leakage?
INSPECT EVAPORATOR PIPING
CONNECTION IN A/C UNIT FOR
LOOSE
12
Are the piping connections for the
evaporator in the A/C unit loose?
INSPECT PIPING CONNECTION
FOR LOOSE
13
Are the piping connections loose?
2008 Mazda CX-9 Grand Touring
2008 HVAC Symptom Troubleshooting (HVAC) - Mazda CX-9
No
Yes
No
Yes
No
Yes
No
If the piping or A/C component (s) are damaged or
cracked, replace them.
Then go to Step 20.
If there is no damage, go to Step 13.
If the vane makes a noise, add 10 ml {10 cc, 0.34 fl
oz} of compressor oil to the A/C compressor.
Verify that the noise is no longer heard.
Adjust refrigerant to the specified amount, then go
to Step 20.
If the piping is damaged or cracked, replace it.
Then go to Step 20.
If there is no damage, go to the next step.
Tighten the connections to the specified torque,
adjust both compressor oil and refrigerant to the
specified amount, then go to Step 20.
If the vane makes a noise, add 10 ml {10 cc, 0.34 fl
oz} of compressor oil to the A/C compressor.
Verify that the noise is no longer heard.
Replace the O-ring on piping, adjust refrigerant to
the specified amount, then go to Step 20.
Tighten the connections to the specified torque,
adjust both compressor oil and refrigerant to the
specified amount, then go to Step 20.
If the vane makes a noise, add 10 ml {10 cc, 0.34 fl
oz} of compressor oil to the A/C compressor.
Verify that the noise is no longer heard.