Ignition Coil: Service and Repair

2010 Chevrolet Express 2500 V8-4.8LSECTION Service and Repair



Ignition Coil Replacement

Removal Procedure

1. Remove the engine cover. Refer to Engine Cover Replacement (Service and Repair).




2. Disconnect the spark plug wires at the ignition coils.




3. Disconnect the ignition coil harness connector.




4. Remove the ignition coil mounting bolts.




5. Remove the ignition coil.

Installation Procedure




1. Install the ignition coil to the bracket.





Caution: Refer to Fastener Caution (Fastener Caution).

2. Install the ignition coil mounting bolts and tighten to 8 Nm (71 lb in).




3. Connect the ignition coil harness connector.




4. Connect the spark plug wires at the ignition coils.
5. Install the engine cover. Refer to Engine Cover Replacement (Service and Repair).

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.