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Home >> Jeep >> 2004 >> Wrangler SE, Automatic >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System >> Crankshaft Position Sensor >> Installation >> 4.0L
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Crankshaft Position Sensor: Installation: 4.0L

Sensor With 1-Bolt Mounting (Equipped With 42 RLE Automatic Transmission): 

  1. Install sensor flush against opening in transmission housing.
  2. Install and tighten sensor mounting bolt to 12 N.m (9 ft. lbs.) torque.
  3. Connect electrical connector to sensor.

    Sensor With 2-Bolt Mounting: 

  4. Install sensor flush against opening in transmission housing.
  5. Install and tighten two sensor mounting bolts to 12 N.m (9 ft. lbs.) torque. The two sensor mounting bolts are specially machined to correctly space unit to flywheel. Do not attempt to install any other bolts.
  6. Connect sensor pigtail harness electrical connector to main wiring harness.

    Sensor With 2-Nut Mounting: 

  7. Install and tighten two sensor mounting nuts to 12 N.m (9 ft. lbs.) torque.
  8. Connect sensor pigtail harness electrical connector to main wiring harness.

    Sensor With One-Bolt Mounting (Not Equipped With 42 RLE Automatic Transmission): 

    New replacement sensors will be equipped with a paper spacer glued to bottom of sensor. If installing (returning) a used  sensor to vehicle, a new paper spacer must be installed to bottom of sensor. This spacer will be ground off the first time engine is started. If spacer is not used, sensor will be broken the first time engine is started.

  9. New Sensors: Be sure paper spacer is installed to bottom of sensor. If not, obtain spacer PN05252229.
  10. Used Sensors: Clean bottom of sensor and install spacer PN05252229.
  11. Install sensor into transmission bellhousing hole.
  12. Push sensor against flywheel/drive plate. With sensor pushed against flywheel/drive plate, tighten mounting bolt to 7 N.m (60 in. lbs.) torque.
  13. Connect sensor pigtail harness electrical connector to main wiring harness.