gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Ignition System - Runs Rough MIL/ON DTC P0300/P0306|Page 8268 > < Ignition System - Runs Rough MIL/ON DTC P0300/P0306|Page 8266
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Ignition Coil: Service and Repair

Ignition Coil Replacement

Removal Procedure

1. Remove the air cleaner outlet resonator.

2. Disconnect the ignition coil connectors (1) from the ignition coils.
3. Remove the retaining bolts (2) from the ignition coils.

4. Remove the ignition coils (1) from the engine.

Installation Procedure

Important:  Make sure that the ignition coil seals are properly seated to the valve cover.

1. Install the ignition coil (1).

Ignition System - Runs Rough MIL/ON DTC P0300/P0306|Page 8268 > < Ignition System - Runs Rough MIL/ON DTC P0300/P0306|Page 8266