How to Fix a Car that Idles Poorly (Rough Idle)

A video on YouTube. In Cars, a Krater category.

Summary by Krater

A demonstration on how to diagnose, remove, clean, and reinstall an idle air control valve (IAC valve) on a Ford Mustang and a Ford Ranger to fix rough idling or stalling issues.

From the video

Answers: How do I clean an idle air control valve to fix high or low idle in my car?

Idle air control valve cleaning
High and low idle troubleshooting
Throttle body and IAC valve operation
Car idle RPM diagnosis

What it concludes

A dirty or stuck idle air control valve causes high idling, engine shaking, or stalling.
Cleaning carbon deposits from the idle air control valve and keeping the motor facing upward during cleaning restores proper idle RPM.

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