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  1. G

    Which bulb to use for MIL?

    I bought a 2006 Yukon SLT this past May. I noticed that the MIL light does not come on when I turn the ignition key. My code reader shows a P0650 code which indicates an open MIL circuit. I dismantled the instrument cluster and apparently someone in the past has removed the tiny LED which is to...
  2. G

    '99 Underhood lamp will not turn off

    Does anyone know where the on/off switch is located for the underhood lamp of a '99 4Dr 2wd? Mine had not worked for a long time until I replaced the bulb a few days ago and now it will only turn off when I disconnect it. I know some of the other body styles had the lamps with mercury switches...
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    New Spyder. Now P0300

    I have a 99 Tahoe w 5.7. For the past year have been getting P0300 when pulling a trailer. Followed the GM TSB and 2 weeks ago pulled both cylinder heads and found 3-4 valves binding on each head. Honed the valve guides and reinstalled the heads. Put in a new upgraded Delphi fuel spyder at the...

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