Some vehicles may exhibit a tapping noise which CAN be heard coming from the rear of the vehicle within...
Mazda technical service bulletin 00400 for 1998-2000 Mazda 626.
- Bulletin number
- 00400
- Component
- Engine and engine cooling: exhaust system: emission control
- Summary
- Some vehicles may exhibit a tapping noise which can be heard coming from the rear of the vehicle within the first 10 minutes after a cold start. This concern may be caused by the operation of the cdcv (canister drain cut valve) solenoid during the evaporative emission monitor. Tt
Owners of these vehicles have filed 155 complaints in the engine category.
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