Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Jeep >> 2006 >> Commander Base, 3.7 K, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 121 (Ignition System (Service Information)) >> Description >> Ignition System-5.7L

Ignition System-5.7L

WARNING: This page is about a different car, the 2007 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

The 5.7L is equipped with 16 spark plugs. Two plugs are used for each cylinder. The 5.7L is also equipped with 8 separate and independent ignition coils. The one-piece coil bolts directly to the cylinder head cover and attaches to the spark plugs.

Two knock sensors (one for each cylinder bank) are used to help control spark knock.

The ignition system consists of:

  1. 16 Spark Plugs (2 per cylinder)
  2. 8 Separate, Ignition Coils
  3. 2 Knock Sensors
  4. Powertrain Control Module (PCM)
  5. Also to be considered part of the ignition system are certain inputs from the Crankshaft Position, Camshaft Position, Throttle Position, 2 knock and MAP Sensors
scientia non olet · About Mike's Workshop Manuals