No.20 Noise Occurs At Idle When Vehicle Is Stopped In All Positions/Ranges

WARNING: This page is about a different car, the 2003 Mazda Protege5 and 2003 Mazda Protege. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Description & Possible Cause - Noise Occurs At Idle When Vehicle Is Stopped In All Positions/Ranges

Courtesy of MAZDA MOTORS CORP.

Fig 2: Diagnostic Procedure Chart

Courtesy of MAZDA MOTORS CORP.

NOTE:

If malfunction remains, inspect related Service Bulletins and perform repair or diagnosis.
If vehicle is repaired, troubleshooting is completed.
If vehicle is not repaired or additional diagnostic information is not available, replace PCM.