2022 Ford F-150 Spark Plug Specs: Type, Gap & Torque Guide

As an ASE-certified master technician, I can tell you that modern engines are incredibly sensitive to ignition health. The 2022 Ford F-150 features a highly advanced lineup of powertrains, from naturally aspirated V8s to high-output twin-turbo V6 hybrids. Installing the right spark plug, with the correct gap and proper torque, is absolutely critical to maintaining performance, fuel economy, and preventing catastrophic misfires under heavy boost.

Below is your comprehensive guide to selecting and installing spark plugs in your 2022 Ford F-150.

Quick reference

Why the right plug matters

Choosing the correct spark plug is more than just making sure the threads fit. It comes down to two primary factors: heat range and electrode metallurgy.

Heat Range: Turbocharged engines like the 2.7L and 3.5L EcoBoost generate massive cylinder pressures and temperatures. Running a plug that is too "hot" can lead to pre-ignition and catastrophic engine knock, while a plug that is too "cold" will foul out with carbon. Always stick to the OEM heat range unless you are running aggressive aftermarket tunes.

Electrode Metal: The days of changing copper spark plugs every 15,000 miles are over. Modern Ford F-150s require Iridium or Ruthenium-tipped fine-wire spark plugs. Platinum and Iridium offer exceptional durability, resisting the intense spark erosion caused by Ford’s high-energy Coil-on-Plug (COP) ignition systems. Using cheaper copper or single-platinum plugs in an EcoBoost will result in rapid gap expansion and spark blowout under boost.

How to gap a spark plug

Even if spark plugs are marketed as "pre-gapped," you should always verify the gap before installation. Shipping drops can easily bend the ground strap.

1. Use the right tool: For fine-wire iridium plugs, avoid the old-school "coin-style" ramp gauges, as dragging them between the electrodes can easily snap the fragile iridium center tip. Use a wire-style gap gauge or a feeler gauge instead.
2. Make adjustments carefully: If the gap needs widening, use the specialized bending notch on your gapping tool to grab the ground strap and apply a light bend away from the center electrode. Never pry against the center electrode.
3. Double-check: Measure one more time to ensure you are perfectly within the specification window (e.g., 0.028–0.031" for the EcoBoost).

Replacement procedure tips

Replacing plugs on the 2022 F-150 is fairly straightforward, but requires attention to detail:

• Coil-on-Plug (COP) Removal: All 2022 F-150 engines utilize individual ignition coils for each cylinder. Carefully unclip the wiring harness and unbolt the coil hold-down screw (usually an 8mm or 10mm head). Twist the coil boot slightly back and forth to break the seal before pulling it up to avoid tearing the rubber.
• The Anti-Seize Debate: Motorcraft spark plugs feature a nickel-plated shell designed to prevent seizing in the aluminum cylinder heads. Ford specifically recommends against using anti-seize on these threads. Adding anti-seize acts as a lubricant, making it incredibly easy to over-torque the plug and strip the cylinder head threads.
• Dielectric Grease: Always apply a small dab of dielectric grease to the inside tip of the coil boot. This prevents moisture intrusion, halts carbon tracking, and ensures the boot won't stick to the porcelain during the next service.

Known issues

While the 2022 F-150 ignition systems are highly reliable, Ford trucks carry some historical baggage when it comes to spark plugs:

• The 3-Valve Breakage Nightmare: Older Ford owners are likely familiar with the infamous 2004–2008 5.4L 3-valve engines, which utilized a two-piece spark plug that notoriously accumulated carbon and snapped off inside the head, leaving broken plug shells trapped in the cylinder. Fortunately, Ford completely redesigned their cylinder heads and spark plugs years ago. Your 2022 F-150 uses traditional one-piece plugs, so this breakage issue is completely eradicated.
• EcoBoost Spark Blowout: On the 2.7L and 3.5L EcoBoost engines, the most common issue is "spark blowout" caused by a widened gap. Due to high turbo boost pressures, if the gap wears beyond 0.032", the spark can literally be blown out like a candle, resulting in aggressive stuttering and misfires under heavy acceleration. If you tow heavily or tune your truck, change your plugs every 60,000 miles instead of 100,000.

Need plugs replaced? Find a shop on Repairius.