Mazda 323 1998–2022 — technical service bulletin
Bulletin 01-010-22 · NHTSA communication 10222564 · issued Sep 26, 2022
Technical service bulletin
communication type
Power Train
component
1998–2022
model years
51
vehicle entries
Official summary
Some customers may experience a squeaking noise may be heard from the exhaust manifold when the idle speed drops from fast idle to normal idle speed during cold start. This is caused by a variable valve being stuck in the closed position. When returning from fast idle to normal, the stuck valve suddenly opens due to thermal change around it which causes abnormal noise. To eliminate this concern, the internal design of the exhaust manifold has been modified.
Vehicles covered
- 1998 Mazda 323
- 1999 Mazda 323
- 2000 Mazda 323
- 2001 Mazda 323
- 1998 Mazda 626
- 1999 Mazda 626
- 2000 Mazda 626
- 2001 Mazda 626
- 2002 Mazda 626
- 2003 Mazda 626
- 2010 Mazda B-Series
- 1998 Mazda B-Series Truck
- 1999 Mazda B-Series Truck
- 2000 Mazda B-Series Truck
- 2001 Mazda B-Series Truck
- 2002 Mazda B-Series Truck
- 2003 Mazda B-Series Truck
- 2004 Mazda B-Series Truck
- 2005 Mazda B-Series Truck
- 2006 Mazda B-Series Truck
- 2007 Mazda B-Series Truck
- 2008 Mazda B-Series Truck
- 2009 Mazda B-Series Truck
- 2014 Mazda CX-3
- 2016 Mazda CX-3
- 2017 Mazda CX-3
- 2018 Mazda CX-3
- 2019 Mazda CX-3
- 2020 Mazda CX-3
- 2021 Mazda CX-3
- 2020 Mazda CX-30
- 2021 Mazda CX-30
- 2022 Mazda CX-30
- 2012 Mazda CX-5
- 2013 Mazda CX-5
- 2014 Mazda CX-5
- 2015 Mazda CX-5
- 2016 Mazda CX-5
- 2017 Mazda CX-5
- 2018 Mazda CX-5
- 2019 Mazda CX-5
- 2020 Mazda CX-5
- 2016 Mazda CX-9
- 2017 Mazda CX-9
- 2018 Mazda CX-9
- 2019 Mazda CX-9
- 2020 Mazda CX-9
- 2017 Mazda MAZDA6
- 2018 Mazda MAZDA6
- 2019 Mazda MAZDA6
- 2020 Mazda MAZDA6
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.