I have chevrolet blazer s10 1992 , and a problem with activate transfer case, it's electric with two buttons 4hi i 4lo. When I push button sometimes it does turn on, sometimes dont. Does it problem with electric or is it something in vaccum? Sometimes it stuck in 4hi or 4lo and it can't turn back in 2wd.
How fast can he drive in 4hi, couse when I drive 40km/h there's a big noise.