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How to Replace the Spark Plugs on the Ford F-150 3.5L V6 Ecoboost

Model: Ford F-150 MK 12 - Years 2009-2014
Part: Spark plugs

Let's see in this guide how to remove and replace the spark plugs on the Ford F-150 3.5L V6 Ecoboost engine, following the instructions below. First, open the hood and start by removing the electrical connectors from the spark plug boots, located on the top of the engine; then remove the connectors from the spark plugs, as shown in the video. At this point, use a socket wrench with an extension to unscrew and remove the spark plugs; replace them with new ones of the correct type and having the same heat range, hand-tightening first and then tightening with the wrench!

Updated on 12 May 2026 by ScegliAuto

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by ScegliAuto

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