1999 Ford F150 Location of the IAC unit on the intake manif

4.2L , 4.6L or 5.4L engine ?

Where is the IAC unit on the intake manifold located at on a 1999 Ford F150 V8 5.4 L Automatic?

It is located on the left side of the intake manifold, pictured below..

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What does the intake manifold look like and how do you clean it for a 1999 Ford f150 v8 5.4

Example pic of intake manifold is below..

A few different things to do to clean out your intake manifold are below: Simply use some air intake system cleaner. Then use a product called BG Fuel Injection System Cleaner. Get a can tap (like an A/C freon can tap) and open a non-pressurized can of Fuel Injection System Cleaner. Take the end of the hose (attached to the can tap) and attach it to the vac. port that's right after the throttle body. The hose has a .025 orifice and lets the Fuel Injection System Cleaner vaporize into your manifold over the course of about 10 mins (12 oz. can). After this try some fuel additive. Thanks for using 2CarPros.com!