02 Tahoe with flickering headlights

Discussion in 'Chevy Tahoe Forum (GMC Yukon, Cadillac Escalade)' started by cjhoe, Feb 7, 2011.

  1. cjhoe

    cjhoe New Member

    We have notice in the last couple of weeks that the Tahoe has devoleped a case of flickering headlights... The best way to discribe it is, they flicker similar to flashing the high beams ( the flickering fluctuates ). We have also noticed the the heater motor speed also fluctuates.
    We live in Northern Michigan ( gotta love the Winter ). These problems only happen when the "Hoe" is cold. Once it completely warms up the problems go away.

    Anyone have any idea what the problem could be ? Alternator ???

    Tx for any & all help
  2. mike1944

    mike1944 New Member

    You probably already know this but...be sure your battery cable connections are clean and tight. Least fluctuation in voltage can make the computer(s) do crazy things. I used to have a Vette and it was acting possessed. Headlights, radio lights...was just the cable connections.

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