Mazda: MIL comes on with P2004/check valve stuck open
Mazda technical service bulletin SB-01-012-09 for 2004-2009 Mazda MAZDA3 and 2006-2009 Mazda MAZDA5.
- Bulletin number
- SB-01-012-09
- Component
- Engine and engine cooling: engine
- Summary
- Mazda: mil comes on with p2004/check valve stuck open. Some vehicles may experience an mil that comes on with dtc p2004 (variable tumble shutter valve stuck open). The cause may be the check valve in the intake manifold vacuum chamber being stuck open. Check valve has now been updated.
Owners of these vehicles have filed 163 complaints in the engine category.
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