Contents Section: Ignition System All sections

Engine Ignition System Lincoln Town Car III рестайлинг

Ignition System 1 illustration ~286 words

GENERAL SPECIFICATIONS

ItemSpecification
Base ignition timing10 degrees BTDC (not adjustable)
Firing order1-3-7-2-6-5-4-8
Spark plug gap1.32-1.42 mm (0.052-0.056 in)
Spark plug type (gasoline only)AGSF-32N
Spark plug type (flexible fuel)AGSF-22FM1

GENERAL SPECIFICATIONS

TORQUE SPECIFICATIONS

DescriptionNm
Spark plugs15
Coil-on-plug bolts10

TORQUE SPECIFICATIONS

This vehicle uses a coil-on-plug electronic ignition system. The coil-on-plug ignition system consists of the following components

  1. Powertrain control module (PCM)
  2. Crankshaft position (CKP) sensor
  3. Ignition coil-on-plug
  4. Spark plugs

The PCM and the CKP sensor are also part of the electronic engine controls system. Refer to ELECTRONIC ENGINE CONTROLS article.

Eight separate ignition coils

  1. are controlled by the PCM for the correct firing sequence.
  2. are mounted directly above each spark plug.

The spark plugs

  1. change the high voltage pulse into a spark which ignites the fuel and air mixture.
  2. originally equipped on the vehicle have a nickel alloy electrode for long life.

Refer to the Introduction - Gasoline Engines article.

Scheme 1

Scheme 1: Engine Ignition Components - Exploded View
ItemPart NumberDescription
114A464Ignition coil-on-plug electrical connectors
2W706175Ignition coil-to-intake manifold bolt (8 required)
312A366Ignition coil (8 required)
412405Spark plug (8 required)
  1. For additional information, refer to the procedures in this article.

REMOVAL AND INSTALLATION

  1. Disconnect the negative battery cable. For additional information, refer to «BATTERY, MOUNTING AND CABLES»(/lincoln/town-car/iii-2003-2011/remont/body-electrical/#battery-mounting-and-cables) article.
  2. Remove the air cleaner outlet pipe. For additional information, refer to «INTAKE AIR DISTRIBUTION AND FILTERING»(/lincoln/town-car/iii-2003-2011/remont/removal-installation/#intake-air-distribution-system-and-filtering-system) article.
  3. Disconnect the electrical connector from the ignition coil-on-plug.
  4. Remove the bolt from the ignition coil-on-plug. To install, tighten to 10 Nm (89 lb-in).
  5. Remove the ignition coil-on-plug.
  6. To install, reverse the removal procedure.
  1. Remove the ignition coil-on-plugs. For additional information, refer to «Ignition Coil-On-Plug»(/lincoln/town-car/iii-2003-2011/remont/ignition-system/#engine-ignition-system) in this article.
  2. Remove the spark plugs. To install, tighten to 15 Nm (11 lb-ft).
  3. Inspect the spark plugs. For additional information, refer to «ENGINE SYSTEM - GENERAL INFORMATION»(/lincoln/town-car/iii-2003-2011/remont/mechanical/#engine-system-general-information) article.
  4. To install, reverse the removal procedure. Adjust the spark plug gap as required.