2024 F-150 Owner's Manual, engine specifications pp. 578–582 ↗
Published spark-plug gap ranges for the named 2024 US gasoline engines; NOT workshop torque, replacement part approval or step-by-step replacement.
Ignition · original evidence reference
2024 Ford F-150 Spark Plugs: Engine-Specific Gap & Replacement Checklist
Ford-manual spark-plug gap comparison for 2024 US F-150 gasoline engines, with a clear service-document checklist before attempting replacement.
Scope: 2024 US/Canada Ford F-150 2.7L EcoBoost, standard non-Raptor 3.5L EcoBoost, and 5.0L V8 only; published reference gap ranges, not all F-150 engines or a repair procedure.
Safety and service boundary
Do not attempt plug removal from a hot engine or use an unsupported torque, plug part number, socket orientation or cylinder sequence. Incorrect plug fitment or installation can damage the engine. Obtain exact service instructions and correct engine/VIN applicability first.
Which gap does Ford list for each engine?
Ford's 2024 owner-manual engine-specification tables show different factory plug-gap ranges across the selected gasoline engines. These are reference gap ranges, not permission to bend pre-gapped replacement electrodes.
- 2024 2.7L EcoBoost: 0.028–0.031 inches (0.7–0.8 mm); printed manual p. 578.
- 2024 standard 3.5L EcoBoost (non-Raptor): 0.028–0.031 inches (0.7–0.8 mm); printed manual p. 579.
- 2024 5.0L V8: 0.039–0.043 inches (1.0–1.1 mm); printed manual p. 582.
What must be verified before changing spark plugs?
Confirm the engine shown by the VIN and vehicle documentation, then look up the exact official replacement-part number and workshop service procedure. A factory gap is not a plug product fitment approval.
The source used here does not provide verified plug-removal order, torque, access steps, tool clearances, coil-connector release sequence, or complete installation instructions. CarFactBook deliberately does not invent those steps.
- Identify actual engine and year; distinguish the standard 3.5L EcoBoost from Raptor and PowerBoost.
- Confirm the manufacturer-approved replacement plug for that VIN and engine; verify any superseded numbers.
- Obtain the Ford workshop procedure, installation torque and warnings for the same engine, then conduct a separate editorial review.
- If warning lights, misfires or rough running are the reason for replacement, diagnose the fault before treating plugs as the cause.
When should plugs be replaced?
The gap table does not establish the maintenance interval. Check the Ford maintenance schedule for the actual engine, usage and market. Do not use an unverified universal mileage, assumed cost or a generic YouTube installation sequence as the service authority.
Original evidence and limitations
These outbound sources support the stated facts and precautions within their listed scope. This article does not claim independent hands-on service testing or replace a manufacturer's workshop procedure.