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Check Engine Light Not Working

Discussion in 'Chevy Trucks' started by Gmgbo, Apr 1, 2012.

  1. Gmgbo

    Gmgbo Senior Member
    Messages: 159

    Hi, I have a 2005 Chevy 2500 6.0, 115,000Miles

    The check engine light is not turning on, hooked up computer and the truck is throwing codes.

    When you turn the key to start all other dash lights come on except the check engine.

    Is it a bulb or whole cluster?

  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 11,397

    Hard to guess,,but possibly just a bulb. Try swaping it out with another bulb before you condemn the cluster
  3. mcwlandscaping

    mcwlandscaping 2000 Club Member
    Messages: 2,557

    What codes are there? Some lights won't set off the CEL....however it is abnormal that the CEL doesn't come on upon startup like you mentioned and then turn off.