2008 Chevrolet Chevy Express G2500, Van Cargo Extended, 6.0 KFACTORY OEM SERVICE PROCEDURE

Identifying Concerns

  1. In order to isolate the source of the noise/poor reception, identify the ignition switch position that the concern is most noticeable:
    1. Turn the ignition switch to the accessory position.
    2. Turn ON the radio.
    3. Seek up 88-108 FM then 550-1600 AM.
    4. Record the number of valid radio stations where the tuner stops.
    5. Repeat these steps with the ignition ON, and the engine OFF then again with the engine running.
  2. Return the ignition switch to the position that the concern was most noticeable.
  3. Remove fuses or circuit breakers one at a time until the noise has been eliminated.
  4. Identify what systems or components are powered by the fuse.
  5. Reinstall all fuses and circuit breakers.
  6. Disconnect the components powered by the fuse one at a time until the concern has been eliminated.
Factory Service Tools

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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.

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