2006 Jeep Wrangler Crankshaft Position Sensor, Engine Control Module, Ignition Coil, Spark Plug

Crankshaft Position Sensor, Ignition Coil, Spark Plug Installation and Repair Tips for 2006 Jeep Wrangler

• Q: How to Service an Ignition Coil on 2006 Jeep Wrangler?

  A: In order to service the ignition coil, unplug the electrical connector and pull out the secondary cables. Next, remove the 4 mounting bolts and the coil. Installation requires placing the coil, and attaching it with bolts and reconnecting the cables and electrical connector, then the air cleaner tube and housing.
• Q: Where is the Crankshaft Position Sensor located on the 2.4L engine, and How to remove and install it on 2006 Jeep Wrangler?

  A: On 2.4L engines the CKP sensor is mostly in a machined hole at the right-front of the block. The O-ring was checked after disconnecting the connector, removing the bolt and twisting the sensor out. The hole is cleaned for fitting, O-ring is oiled, the sensor is seated with rocking motion avoiding twisting, and the bolt is torqued to 28 Nm.
• Q: How to remove and install the Spark Plug for the #2 or #3 cylinder on 2006 Jeep Wrangler?

  A: It is common to remove the air cleaner and tube, twist off the secondary cable, blow compressed air into the opening, and use a rubber-insert socket to pull and inspect the plug. Tighten by hand then torque to approximately 15 Nm (11 ft.lb). Torque critical on 2.4L tapered seats. Make sure to secure the cables and avoid dropping plugs.