How to: Clean & replace Idle Air Control Valve Ford Duratec HE (Mondeo, Focus, Mazda)

Simple DIY how to: Remove, clean, and replace the IACV on a Ford Duratec HE or Mazda LF engine.

Video on the throttle body:    • How to: Clean & replace throttle body...  
Video on the throttle position sensor:    • How to: Test a throttle position sens...  

Nb.: Later Duratec HE's use a drive-by-wire throttle body which effectively incorporate the IACV into the electronic throttle body - this would be a different process.

Idle Air Control Valves get dirty over time along with the rest of the insides of the throttle body assembly, and it's good practice to service them by just cleaning from time to time. Dirty or clogged throttle bodies can lead to irregular or surging idle and engine tune problems.

Failure will mean replacement is necessary. Computer codes may be set so these should be checked with a scan tool first.
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You will need:
8 mm socket and 3/8" or 1/4" socket wrench with short extension bar
Throttle body cleaner or similar plastic-safe solvent for cleaning (do not use "carb cleaner")
Rag(s)
Flashlight.

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