2002 chevy silverado stuck in 4 low

Discussion in 'General Chevy & GM Tech Questions' started by RaySwayz, Aug 19, 2012.

  1. RaySwayz

    RaySwayz New Member

    Joined:
    Aug 19, 2012
    Messages:
    3
    Likes Received:
    0
    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
    #1
  2. stevekarns

    stevekarns New Member

    Joined:
    Aug 20, 2012
    Messages:
    8
    Likes Received:
    0
    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?
    #2
  3. RaySwayz

    RaySwayz New Member

    Joined:
    Aug 19, 2012
    Messages:
    3
    Likes Received:
    0
    How much is it to replace?
    #3
  4. RaySwayz

    RaySwayz New Member

    Joined:
    Aug 19, 2012
    Messages:
    3
    Likes Received:
    0
    also my speed obdometer works so how can it be that? and no codes are popping up
    #4
  5. Conlan Rose

    Conlan Rose Super Moderator

    Joined:
    Dec 12, 2011
    Messages:
    2,113
    Likes Received:
    3
    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.
    #5

Share This Page