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  1. #1

    Default Avalanche electrical glitches [Expired Topic]

    I have an '05 Avalanche that is experiencing some odd electrical issues. Over the past week, periodically and without pattern when I turned the key in the ignition there was a half-second delay before it started. Then the clock on the radio went to 12:00. (All the other radio settings were fine.) It did this (again, periodically) for about five days. Yesterday when I went to start it for the fourth time of the day there was absolutely NO juice. No lights, no bells, no power door locks, nothing. I tried ten minutes later and it started fine! I checked the battery terminals, and they're clean and tight. The battery was replaced nine months ago.

    Any ideas?

    greekprof in MN

  2. #2
    Legend

    Join Date
    Feb 2008
    Location
    Red Wing, Minnesota, United States
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    3,389

    Default

    Welcome to the site!! Where in MN??


    As far as your problem, there is some kind of deal with the radio that holds the memory for the time, there have been a few other posts about this lately. If it was a full ignition problem I would think youwould also be losing the presets on the radio as well. Start searching the forum for "1200" or "radio memory"
    99 K1500 Suburban LT "THE BEAST"
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    ___________________________
    Jason

  3. #3

    Default

    You may have a bad ignition switch. Usually the first indication is dashboard lights and accessories. Then the Check Engine Light with various codes all of which are voltage related. Keep your eye on it. Monitor the voltage with a volt meter at the dash fuse when this happens. If the voltage drops below 9 volts suspect a bad ignition switch.
    Jim

    2004 SILVERADO 2500HD LS
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    Other rides:

    1967 Landcruiser <350 Chevy>
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