NO.16 HIGH OIL CONSUMPTION/LEAKAGE [MZI-3.5]
DIAGNOSTIC PROCEDURE
DIAGNOSTIC PROCEDURE
DIAGNOSTIC PROCEDURE
10
Inspect for fuel saturation inside
charcoal canister.
Is excess amount of liquid fuel present
in canister?
Yes
Replace the charcoal canister.
No
Inspect the fuel tank vent system.
Then, go to the next step.
(see
FUEL TANK INSPECTION
[MZI-3.5]
.)
11
visually inspect the exhaust system
part.
Is there any deformed exhaust system
part?
Yes
Replace the part.
No
Go to the next step.
12
Inspect the three-way catalytic
converter.
(see
EXHAUST SYSTEM
INSPECTION [MZI-3.5]
.)
Is the three-way catalytic converter
normal?
Yes
Go to the next step.
No
Replace the three-way catalytic
converter.
13
z
Verify test results.
{
If normal, return to diagnostic index to service any additional symptoms.
(See
ENGINE SYMPTOM TROUBLESHOOTING [MZI-3.5]
.)
{
If malfunction remains, inspect related Service Bulletins and/or On-line Repair
Information and perform repair or diagnosis.
z
If vehicle is repaired, troubleshooting completed.
z
If vehicle is not repaired or additional diagnostic information is not
available, replace the PCM.
(see
PCM REMOVAL/INSTALLATION [MZI-3.5]
.)
16
HIGH OIL CONSUMPTION/LEAKAGE
DESCRIPTION
Oil consumption is excessive.
POSSIBLE CAUSE
z
PCV valve malfunction
z
Improper dipstick
z
Improper engine oil viscosity
z
Engine internal parts malfunction
STEP INSPECTION
RESULTS ACTION
1
Remove and shake the PCV valve.
Yes
Go to the next step.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE Symptom Troubleshooting (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:27:37 AM
Page 66
© 2005 Mitchell Repair Information Company, LLC.