Spark Plugs: Removal
WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
On 3.9L and 5.9L engines, spark plug cable heat shields are pressed into the cylinder head to surround each cable boot and spark plug. See Fig 1. If removal of the heat shield(s) is necessary, remove the spark plug, cable and compress the sides of shield for removal. Each shield is slotted to allow for compression and removal. To install the shields, align shield to machined opening, in cylinder head and tap into place with a block of wood. On 4.7L engine, each individual spark plug is located under each ignition coil. Each individual ignition coil must be removed to gain access to each spark plug.
- Prior to removing spark plug, spray compressed air around spark plug, hole and area around spark plug. This will help prevent foreign material from entering combustion chamber.
- On 3.9L and 5.9L, always remove spark plug or ignition coil cables by grasping at the cable boot. See Fig 2. Turn the cable boot 1/2 turn and pull straight back in a steady motion. Never pull directly on the cable. Internal damage to cable will result.
- On 4.7L, remove ignition coils. See IGNITION COIL . On all models, remove spark plug from cylinder head using a quality socket with a rubber or foam insert. Inspect spark plug condition.