Mazda: variable valve timing (VVT) noise when starting engine
Mazda technical service bulletin SB-01-028-10 for 2004-2008 Mazda MAZDA3, 2003-2008 Mazda MAZDA6 and 2007 Mazda CX-7 and others.
- Bulletin number
- SB-01-028-10
- Component
- Engine and engine cooling: engine
- Summary
- Mazda: variable valve timing (vvt) noise when starting engine. When engine is first started, some vehicles may exhibit a loud ticking noise from the variable valve timing (vvt) (a). This is caused by the lock pin of the variable valve timing actuator not fully engaging or from a worn lock pin hole. Kb
Owners of these vehicles have filed 614 complaints in the engine category.
Vehicles covered
- Mazda MAZDA3 2004-2008 20042005200620072008
- Mazda MAZDA6 2003-2008 200320042005200620072008
- Mazda CX-7 2007 2007
- Mazda MAZDA5 2006-2008 200620072008
- Mazda MX-5 2006-2008 200620072008
- Mazda Mazdaspeed3 2007 2007
- Mazda Mazdaspeed6 2006-2007 20062007
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