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  1. #1

    Default 2002 chevy silverado stuck in 4 low

    hey whats up i have a 2002 chevy silverado stuck in 4 low, i can hear the transfer case shift and the buttons on dash work, the differential it out, but when i drive i can tell its in 4 low and shifts hard or doesnt shift at all just revs and after a minute of driving it will shift, also sometimes when driving down the road it will switch from 4low to 2 hi on dash switch and i hear a nasty grind but its still in 4 low. i shut off truck and turn it on and switch button to 4 high. i havent been driving it alot just down the street going 10- 15 mph.. this is my first truck so help if its better txt or call me 2103241781 thanks

  2. #2


    I had my truck get stuck in 4 Hi. It was a speed sensor on the transmission that was disconnected some how. Perhaps your speed sensor is faulty?

  3. #3


    How much is it to replace?

  4. #4


    also my speed obdometer works so how can it be that? and no codes are popping up

  5. #5


    They are two independent systems the speed sensor on the tranny determines when to shift there is a speed sensor attached to the front wheel that controls the speedometer. At least this is what I am told about my truck.

    1996 Chevy Tahoe LT 5.7L V8 4X4 205,000+ miles. Built proudly at Janesville Assembly in Janesville, Wisconsin
    Basic mods: Lights all over, bunch of electrical work, and a couple cooling mods.

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