Mazda CX-9 Grand Touring 2008, Руководство пользователя

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switch is turned off?
(See
FUEL LINE PRESSURE
INSPECTION [MZI-3.7] .)
No
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION [MZI-
3.7] .)
12
Connect a pressure gauge to A/C low and
high pressure side lines.Turn the A/C on
and measure low side and high side
pressure.Are pressures within
specifications?(See REFRIGERANT
PRESSURE CHECK .)
NOTE:
z
The following test is for engine
stall with the A/C on. If other
symptom exists, go to the next
step.
Yes Go to the next step.
No
If the A/C is always on, go to symptom
troubleshooting "No.24 A/C is always on
or A/C compressor runs continuously".
(See NO.24 A/C IS ALWAYS ON OR
A/C COMPRESSOR RUNS
CONTINUOUSLY [MZI-3.7] .)
For other symptoms, inspect the
following:
z
Refrigerant charging amount
z
Condenser fan operation
13
Inspect cruise control system.Is cruise
control system normal?
NOTE:
z
The following test should be
performed for symptom with
cruise control ON. If other
symptoms exist, go to the next
step.
Yes Go to the next step.
No Repair or replace the malfunctioning part.
14
Inspect the front HO2S.
(See FRONT HEATED OXYGEN
SENSOR (HO2S) INSPECTION [MZI-
3.7] .)
Is the front HO2S normal?
Yes Go to the next step.
No
Replace the front HO2S.
(See REAR HEATED OXYGEN
SENSOR (HO2S)
REMOVAL/INSTALLATION [MZI-
3.7] .)
15
Inspect the evaporative purge hose between
the fuel tank and the purge valve.
Does fuel flow into evaporative purge
hose?
Yes
Inspect the check valve (two-way).
(See FUEL TANK INSPECTION [MZI-
3.7] .)
No Go to the next step.
16
Disconnect the vacuum hose between the
purge solenoid valve and the intake
manifold from the purge solenoid valve
side.
Plug opening end of vacuum hose.
Drive the vehicle.
Does the engine condition improve?
Yes
Go to the next step.
Inspect if the purge solenoid valve is stuck
open mechanically.
Inspect the evaporative emission control
system.
No Go to the next step.
17
Visually inspect the CMP sensor and
projections of camshaft pulley.
Are CMP sensor and projections of
camshaft pulley normal?
Yes Go to the next step.
No Replace the malfunctioning part.
2008 Mazda CX-9 Grand Touring
2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:10:05 AM Page 55 © 2005 Mitchell Repair Information Company, LLC.