SMOKE FROM TAIL PIPES AFTER PROLONGED IDLE PERIODS

Applicable Models

Related Category/Subcategory/Symptoms

ENGINE / MECHANICAL / WHITE SMOKE,BLUE SMOKE
ENGINE / EMISSIONS SYSTEM / EXCESSIVE OIL CONSUMPTION
ENGINE / EMISSIONS SYSTEM / WHITE SMOKE,BLUE SMOKE
ENGINE / EMISSIONS SYSTEM / BLACK SMOKE
ENGINE / MECHANICAL / EXCESSIVE OIL CONSUMPTION

MTOL - 5505 Dealer Repair Information

Symptom and Conditions

Applicable Model(s) VINS  
                                                                        
CX-7          JM3ER ****8* 209008   Produced before 2/15/08             
MAZDASPEED6   ALL                   ALL                                 
MAZDASPEED3   JM1BK ****8* 880368   Produced before 2/6/08              
                                                                        
Some customers may experience white/blue smoke from their exhaust pipes
after prolonged idle periods and/or while driving in traffic at very   
slow speeds.                                                           
                                                                       
This condition may be the result of the turbo's oil supply not being   
able to adequately drain out of the turbo during long idle periods.

Vehicles having this concern should be diagnosed using the following diagnostics procedure. 

Repair Procedure

1. Confirm that the proper maintenance intervals have been performed. 
                                                                      
2. With the engine at normal operating temperature, allow it to idle  
   for an extended idle period.                                        
                                                                       
Caution:                                                               
Closely monitor the engine coolant to the assure the engine does not Overheat.                                                              
                                                                       
3. If smoke from the exhaust is present after the extended idle period,
   take before pictures of the smoke, then change the oil and filter   
   using 5W/40 (synthetic).  After the oil change, in order to burn off 
   the oil that remains in the exhaust system, perform the following:    
   start the engine, check for oil leaks, then let it idle for 10      
   minutes, after the 10 minute idle period, increase the RPMs to 3000 
   for 1 minute, repeat idle test to confirm that no smoke returns.     
                                                    
A: If the smoke returns, contact the Technical Assistance Hotline      
   (Select option #2 for Major Assembly Authorization) with the oil    
   change history information, to attain an authorization for a turbo  
   replacement.                                                        
                                                                       
B: If smoke DOES NOT RETURN after the repeat idle test, NO other repairs
   are to be performed at this time. Explain to the customer that MAZDA
   is currently working on an improved positive crankcase valve (PCV)  
   system to reduce the engine crankcase pressures to allow the turbo's
   oil supply to drain from the turbocharger more efficiently This fix
   will be available approximately within 90 days and at that time the 
   oil will be changed back to 5W-30 and the improved PCV system will be
   installed                                                           
                                                                       
C: If customer concern could NOT be duplicated after the extended idle 
   period, request more information from the customer to enable you to 
   diagnose their concern accordingly.                                 
                                                                       
Warranty information (oil change only)                                 
Warr Typ    A                                                          
Symp        99                                                         
Dmg         99                                                         
Process No. QA162A                                                     
PNMC        (CX7)L3Y4-13-70Z (MPS3&6) L3Y1-13-70Z                      
Pt Qty      0                                                          
Rlt/Pt No./Pt Qty: L321-14-302/01(Filter)                              
Lbr Op Cd/Lbr Hrs: YY595XRX/0.3                                        
Oil Sublt:         6 quarts @$7.00/Qt        
Subl Inv No:  OILXX                
Subl Type Cd: X                    
Max Subl Amt: $42.00 (Max Limit)