TSB: 01-002/11
2007-2009 CX-7 - WHITE OR BLUE SMOKE FROM TAIL PIPE AFTER LONG IDLE PERIOD
BULLETIN NOTE
This bulletin supersedes the previous bulletin 01-004/10 issued on 01/07/10, 02/17/10 and 08/18/10. The DESCRIPTION, INSPECTION PROCEDURE, PART(S) INFORMATION and WARRANTY INFORMATION have been revised.
Changes are noted below in Red beside the changes bar.
For 2006-2007 Mazdaspeed6 or 2007-2009 Mazdaspeed3 vehicles with this concern, refer to TSB 01-001/11 ("WHITE OR BLUE SMOKE FROM TAIL PIPE AFTER LONG IDLE PERIOD").
APPLICABLE MODEL(S)/VINS
2007-2009 CX-7 vehicles with VINs lower than JM3ER****9*224013 (produced before July 1, 2008)
DESCRIPTION
Some customers may experience white/blue smoke from the exhaust pipes after long idle periods or while driving at slow speeds in heavy traffic. When engine oil viscosity is low due to improper oil change intervals and/or usage of low viscosity oil, and the internal pressure of the crank case is greater than the exhaust pressure while idling, the lubrication oil for the turbine shaft gets into the exhaust side of the turbine and creates smoke by heat of turbine/catalyst converter.
Customers having this concern should have their vehicle repaired according to the following repair procedure.
NOTE:
The oil change program as described in the prior published service bulletin under the same subject, is no longer in effect.
Vehicles having their turbochargers replaced during the procedures as described in this service bulletin, will NOT require any further repairs related to this service bulletin or any future revisions.
INSPECTION PROCEDURE
PDF PRINT - INSPECTION PROCEDURE
If the proper oil change intervals using 5W-30 have been performed, repair the vehicle using the following repair procedure.
REPAIR PROCEDURE
VENTILATION SET REMOVAL:
Replace the cylinder head cover (A), ventilation hose (B), engine hanger (C), air pipe (D), vacuum hose (E) and plug (F) (all components included in the Ventilation Set).
WARNING: Perform this repair procedure while the engine is cold. A hot engine can cause severe burns.
1. Record the customer's pre-set radio stations.
2. Remove the battery cover.
3. Disconnect the negative battery cable.
4. Remove the air cleaner.
5. Remove the battery clamp, battery and battery tray.
6. Remove the intercooler cover and pull out the intercooler.
7. Remove the air pipe (A) with vacuum hose (B).
8. Remove the vacuum hose.
9. Remove the cylinder head cover.
Loosen the cylinder head cover bolt in the order shown below.
Remove the cylinder head cover (A) with the ventilation hose (B).
10. Remove the insulator bolt, then move the insulator (A) to create enough space to access the engine hanger bolt.
11. Remove the engine hanger bolt and engine hanger (B).
VENTILATION SET INSTALLATION:
1. Install new engine hanger.
Tightening Torque: 44-50 Nm
2. Install the insulator bolt.
Tightening Torque: 7.8-10.8 Nm
3. Clean up the cylinder head surface attached to the cylinder head cover.
4. Apply 5.0mm of silicone sealant to the spot shown below for cylinder head cover installation.
5. Install new cylinder head cover.
Tightening Torque: 8.0-9.5 Nm
NOTE: Fasten the cylinder head cover bolt in the order shown.
6. Install new vacuum hose (A) to the three-way solenoid valve (B).
7. Install the hose (A) to new air pipe (B), then install new plug (C) and new vacuum hose (D).
8. Install new air pipe.
Tightening Torque: 2.5-3.4 Nm
9. Install the vacuum hose (A) to the three-way solenoid valve and install the ventilation hose (B) to the cylinder head cover and the air pipe.
NOTE: After both hoses are securely installed, pull both levers (C) out.
10. Install the intercooler.
11. Install the battery tray, battery and battery clamp.
12. Install the air cleaner.
13. Install the intercooler cover.
14. Reconnect the negative battery cable.
15. Install the battery cover.
16. Re-enter the customer's pre-set radio stations.
PART(S) INFORMATION
Part Number
Description
Qty.
Notes
L3Y1-13-S80B
Ventilation Set
1
---
L321-14-302A-9U
Oil Filter Cartridge
1
For customers returning for 5W-40 Synthetic oil change.
5555-EG-001
Oil
6
For customers returning for 5W-40 Synthetic oil change.
WARRANTY INFORMATION
NOTE:
This warranty information applies only to verified customer complaints on vehicles eligible for warranty repair.
This repair is covered under Mazda New Vehicle Limited Warranty and Mazda Powertrain Limited Warranty. It may also be covered under California Emission Warranty, refer to Mazda Warranty Wizard to confirm coverage.
If the turbocharger is replaced, this warranty information is not applicable.
Additional diagnostic time cannot be claimed for this repair.
The oil change program as described in the prior published service bulletin under the same subject, is no longer in effect.
If the customer is returning after a synthetic oil change with a complaint of the white or blue smoke returning, it is not necessary to replace the synthetic oil with standard oil if the ventilation set requires replacement (if vehicle has returned within 3,000 miles).
Only customers returning for an additional synthetic oil change should have their vehicle serviced with standard 5W/30 motor oil charged out as related parts on the turbocharger replacement claim.
Warranty Type
A
Symptom Code
18
Damage Code
91
Part Number Main Cause
L3Y1-13-S80B
Quantity
1
Operation Number / Labor Hours:
XXF4GARX / 1.3