2008 Jeep Commander 2WD V8-5.7LFACTORY OEM SERVICE PROCEDURE

Installation







5.7L

Factory service manual diagram




1. Thoroughly clean knock sensor mounting hole.
2. Install sensor (1) into cylinder block (3).

NOTE: Over or under tightening the sensor mounting bolts will affect knock sensor performance, possibly causing improper spark control. Always use the specified torque when installing the knock sensors. The torque for the knock sensor bolt is relatively light for an 8 mm bolt (2).

NOTE: Note foam strip on bolt threads. This foam is used only to retain the bolts to sensors for plant assembly. It is not used as a sealant. Do not apply any adhesive, sealant or thread locking compound to these bolts.

3. Install and tighten mounting bolt (2). Tighten to 15 +/- 2 ft. lbs. (20 Nm) (176 in.lbs.).
4. Install electrical connector to sensor (5).
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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