Chevrolet Cobalt Service & Repair Manual: System Service
Component Replacement
Ignition Control Module (ICM)
| 1. |
Remove accelerator cable from bracket. |
| 2. |
Remove accelerator cable bracket bolt
and bracket. |
| 3. |
Disconnect ignition control module
harness connector. |
| 4. |
Remove ignition control module retaining
screws, then the module from ignition coil housing, Fig.
1. |
| 5. |
Reverse procedure to install. |
|
Ignition Coil Housing
| 1. |
Remove accelerator and cruise control
cables from bracket. |
| 3. |
Remove ignition control module. |
| 4. |
Remove ignition coil housing retaining
bolts, then the coil housing from camshaft cover, Fig.
2. |
| 5. |
Reverse procedure to install. |
|
Crankshaft Position (CKP) Sensor
| 1. |
Raise and support vehicle. |
| 2. |
Disconnect starter motor electrical
connectors from starter. |
| 3. |
Remove starter motor mounting bolts,
then the starter. |
| 4. |
Disconnect Crankshaft Position (CKP)
sensor harness connector. |
| 5. |
Remove CKP sensor retaining bolt, then
the sensor, Fig. 3. |
| 6. |
Reverse procedure to install. |
|
Knock Sensor
| 1. |
Raise and support vehicle. |
| 2. |
Disconnect starter motor electrical
connectors from starter. |
| 3. |
Remove starter motor mounting bolts,
then the starter. |
| 4. |
Disconnect knock sensor wiring harness
connector. |
| 5. |
Remove knock sensor from engine block,
Fig. 4. |
| 6. |
Reverse procedure to install. Torque
knock sensor 12-16 ft. lbs. |
|
Fig. 1 Ignition control module replacement
Fig. 2 Ignition coil housing replacement
Fig. 3 CKP sensor replacement
Fig. 4 Knock sensor replacement
This ignition system uses one
coil for each pair of cylinders. Each pair of cylinders that are at Top
Dead Center (TDC) at the same time are known as companion cylinders. The
cylind ...
Chevrolet Cobalt Owners Manual
Chevrolet Cobalt Service Manual
Description
Engine Service