GENERAL SPECIFICATIONS
| Item | Specification |
|---|---|
| Base ignition timing | 10° before top dead center and not adjustable |
| Firing order | 1-3-7-2-6-5-4-8 |
| Spark plug gap | 1.32-1.42 mm (0.052-0.056 in.) |
| Spark plug type 5.4L (GAS) | AGSF-22WM |
| Spark plug type 5.4L (NGV) | AGSF-22FM1 |
| Spark plug type 4.6L | AGSF-32PM |
| Lubricant | |
| Brake Caliper Grease and Silicone Dielectric Compound | ESE-M1C171A |
GENERAL SPECIFICATIONS
TORQUE SPECIFICATIONS
| Description | Nm |
|---|---|
| Ignition coil bolts | 6 |
| Spark plugs | 14 |
TORQUE SPECIFICATIONS
The electronic ignition (EI) system is a coil-on-plug (COP) ignition system. The COP ignition system consists of the following components
- Crankshaft position (CKP) sensor
- Ignition coils
- Spark plugs
The CKP sensor
- Is a variable reluctance sensor.
- Is triggered by a 36-minus-1 tooth trigger wheel mounted on the crankshaft.
- Provides base timing and crankshaft speed (rpm) to the powertrain control module (PCM). For additional information.
The eight separate ignition coils
- Change low voltage signals from the PCM to high voltage pulses.
- Produce the high voltage pulses to the spark plugs.
- Are connected directly to each spark plug.
The spark plugs
- Change a high voltage pulse into a spark which ignites the fuel and air mixture.
- Originally equipped on the vehicle have a platinum-enhanced electrode for long life.
Refer to the appropriate INTRODUCTION article.