Symptoms
Dusty-road use, a misfire code or an unknown history.
The fix, step by step
- The air filter is a tool-free job: unclip the airbox, swap the element and wipe out the housing.
- On the Hurricane, take off the engine cover and the coils to reach the plugs, blow debris out of the wells before removing each plug, and torque the new plugs to the service-manual figure.
- The owner's-manual maintenance plan replaces the Hurricane's plugs every 60,000 miles, on mileage alone.
Tools & part numbers
- Plug socket with extension
- torque wrench
- compressed air
- dielectric grease
Where to buy the parts
Engine air filter, 2024 Wagoneer 3.0RockAuto ↗Amazon ↗
Spark plugs, 2024 Wagoneer 3.0RockAuto ↗Amazon ↗
Ignition coil, 2024 Wagoneer 3.0RockAuto ↗Amazon ↗
Hunting a used or discontinued part? Search eBay Motors for Jeep Wagoneer & Grand Wagoneer (WS) parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.