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1990 engagement switch?

Discussion in 'Chevy Trucks' started by roteye38, Oct 21, 2010.

  1. roteye38

    roteye38 Member
    Messages: 40

    i have a 1990 2500 no 4x4 light when i put it in four wheel drive it is going in four wheel though bulb is good have power at the engagement switch plug took switch out and held in button still no light can get light to come when i cross over wires with test light at plug bad engagement switch or maybe problem in side of diff ?
  2. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    If holding in on the button (on the switch) doesn't make it illuminate yet jumping the harness plug at the switch does then the switch is defective.
  3. roteye38

    roteye38 Member
    Messages: 40

    thanks for the info have to get a new one