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  1. #1

    Default intermittent shift problem

    have a 95 3/4 ton chevy suburban w/140,000miles. can anyone tell me what would cause the tach and speedo to go crazy and the 4l80e tranny not to shift..... sometimes. thanks

  2. #2


    You probably have a bad ignition switch. Common problem on these trucks. To check it hook up a volt meter to the transmission fuse. Watch the volt meter while cranking the engine. If the voltage drops below 9 volts you have found the problem.

    2004 SILVERADO 2500HD LS
    Pro Comp Leveling Kit
    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
    Linux Bed Liner
    Tinted Windows

    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

  3. #3


    thanks Jim,

    no fuses labeled transmission. inside or out. am i looking for something labeled differently?

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