PREMIUM IDLE SPEED CONTROLLER TO SUIT FORD MPFI SOHC 3.9L 4.0L I6

Premium Idle Speed Controller – Designed to Support Smooth Idle Operation

An idle speed controller, also known as an idle air control valve or IAC valve, helps manage engine idle when the throttle is closed. During idle or low speed operation, the engine still requires controlled air flow to keep running smoothly, and the idle speed controller helps regulate this through the intake system.

When this component becomes dirty, worn, or faulty, the engine may struggle to hold a steady idle. Common concerns can include stalling, fluctuating RPM, hard starting, rough idle, or poor low speed drivability. Replacing it with a correctly matched idle speed controller can help restore normal idle control.

Why Choose Premium Idle Speed Controller?

• Helps regulate idle air flow when the throttle is closed.
• Suitable replacement option for idle control related faults.
• Assists with stable RPM control during low speed engine operation.
• Practical choice when diagnosing rough idle, stalling, or hard starting concerns.

Shop with confidence at MACE Engineering Group for dependable Premium idle speed controllers designed for reliable fitment and everyday operation.

This idle speed controller suits Ford vehicles fitted with the MPFI SOHC I6 engine.

Contents:

• 1 X Idle speed controller

Vehicle Fitment Guide

Note: The image is for illustrative purposes only.