TORQUE SPECIFICATIONS CHART
| Description | Nm |
|---|---|
| Ignition coil bolts | 6 |
| Ignition coil bracket bolts | 20 |
| EGR tube bracket bolts | 9 |
TORQUE SPECIFICATIONS CHART
Scheme 1
The crankshaft position sensor signal is the basis for ignition timing calculations. The alternating voltage signal from the crankshaft position sensor is digitized by the powertrain control module. This digitized signal is then used to position the closing time of the primary circuit of the ignition coil.
Ignition angle is determined by the powertrain control module in response to engine operating conditions. Once ignition angle has been determined, the powertrain control module interrupts the current to the primary circuit of the ignition coil thus triggering the ignition spark which is supplied to the cylinders through the spark plug wires and spark plugs.
The ignition coils are triggered by the powertrain control module in pairs (cylinders 1 and 4 and cylinders 2 and 3) sending one ignition spark to the firing cylinder and one ignition spark to the corresponding cylinder on the exhaust stroke.
Refer to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
Scheme 2
Scheme 3
Scheme 4
Scheme 5
- Remove the ignition coil pack cover (if equipped). Detach the retaining clips. Detach the coolant pipe from the retaining clip.
- Disconnect the spark plug wires from the ignition coil pack.
- Disconnect the ignition coil pack electrical connector.
- Remove the ignition coil pack.