Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2004 Mazda B2300 Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Idle Air Control (IAC) Valve Removal/Installation - 2.3L

Disconnect the negative battery cable. See BATTERY DISCONNECT .
Disconnect the idle air control (IAC) valve electrical connector.

Fig 1: Disconnecting Idle Air Control (IAC) Valve Electrical Connector - 2.3L
Courtesy of MAZDA MOTORS CORP.
Remove the bolts and the IAC valve and discard the gasket.

Fig 2: Installing Idle Air Control Valve - 2.3L
Courtesy of MAZDA MOTORS CORP.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.