Mazda CX-9 Grand Touring 2009 Manual page 1773

compressor oil.
Is noise heard when racing engine?
CHECK TO SEE WHETHER
MALFUNCTION IS IN A/C
COMPRESSOR OR ELSEWHERE
11
Drain compressor oil.
Is it contaminated with metal
particles?
CHECK TO SEE WHETHER
MALFUNCTION IS SOMEWHERE IN
A/C SYSTEM OR ELSEWHERE
12
Is compressor oil whitish and mixed
with water?
INSPECT A/C COMPRESSOR OIL
13
Is compressor oil darker than normal
and contaminated with aluminum
chips?
CHECK TO SEE WHETHER
MALFUNCTION IS IN A/C
COMPRESSOR OR ELSEWHERE
14
Is noise heard immediately after A/C
compressor is stopped?
INSPECT DRIVE BELT
Inspect drive belt.
15
(See DRIVE BELT INSPECTION
[MZI-3.7] .)
Is it okay?
INSPECT DRIVE BELT CONDITION
Is drive belt worn?
16
Does it have foreign material
imbedded in it, or have oil on it?
INSPECT MAGNETIC CLUTCH
17
Inspect magnetic clutch.
(See MAGNETIC CLUTCH
2008 Mazda CX-9 Grand Touring
2008 HVAC Symptom Troubleshooting (HVAC) - Mazda CX-9
Yes Go to the next step.
No
Yes
No
Yes
No
Yes
No
Yes Go to the next step.
No
Yes
No
Yes
Explain repair to customer.
Replace A/C compressor, then go to Step 19.
Replace entire A/C system (excluding heater),
then go to Step 19.
Go to the next step.
Replace A/C compressor and condenser, then go
to Step 19. (Since A/C compressor may be worn
and receiver/drier may be clogged, replacement
of receiver/drier is necessary.)
Condition is normal. Recheck malfunction
symptoms.
Replace A/C compressor, then go to Step 19.
(A/C compressor discharge valve left open)
Go to the next step.
Adjust or replace drive belt, then go to Step 19.
Remove obstruction, remove oil, or replace drive
belt, then go to Step 19.
Go to the next step.
Replace A/C compressor (excluding pressure
plate, A/C compressor pulley, and stator), then go
to Step 19.