compressor oil.
z
Is noise heard when racing engine?
Explain repair to customer.
11
CHECK TO SEE WHETHER
MALFUNCTION IS IN A/C
COMPRESSOR OR ELSEWHERE
z
Drain compressor oil.
z
Is it contaminated with metal
particles?
Yes Go to the next step.
No
Replace A/C compressor, then go to Step 19.
12
CHECK TO SEE WHETHER
MALFUNCTION IS SOMEWHERE IN
A/C SYSTEM OR ELSEWHERE
z
Is compressor oil whitish and mixed
with water?
Yes
Replace entire A/C system (excluding heater),
then go to Step 19.
No
Go to the next step.
13
INSPECT A/C COMPRESSOR OIL
z
Is compressor oil darker than normal
and contaminated with aluminum
chips?
Yes
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.)
No
Condition is normal. Recheck malfunction
symptoms.
14
CHECK TO SEE WHETHER
MALFUNCTION IS IN A/C
COMPRESSOR OR ELSEWHERE
z
Is noise heard immediately after A/C
compressor is stopped?
Yes
Replace A/C compressor, then go to Step 19.
(A/C compressor discharge valve left open)
No
Go to the next step.
15
INSPECT DRIVE BELT
z
Inspect drive belt.
(See
DRIVE BELT INSPECTION
[MZI-3.7]
.)
z
Is it okay?
Yes Go to the next step.
No
Adjust or replace drive belt, then go to Step 19.
16
INSPECT DRIVE BELT CONDITION
z
Is drive belt worn?
z
Does it have foreign material
imbedded in it, or have oil on it?
Yes
Remove obstruction, remove oil, or replace drive
belt, then go to Step 19.
No
Go to the next step.
17
INSPECT MAGNETIC CLUTCH
z
Inspect magnetic clutch.
(See
MAGNETIC CLUTCH
Yes
Replace A/C compressor (excluding pressure
plate, A/C compressor pulley, and stator), then go
to Step 19.
2008 Mazda CX-9 Grand Touring
2008 HVAC Symptom Troubleshooting (HVAC) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:14:51 AM
Page 32
© 2005 Mitchell Repair Information Company, LLC.
