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delpadre5
delpadre5 2/21/2012
1988 GMC C3500 Sierra 8Cyl5.7L - Engine
ignition problem truck started then wont shut off key turned back but nothing happend had to pull fuses to shut off
1 Answer
  • CVO
    CVO 2/21/2012
    Check the Ignition Switch
    For your 1988 GMC Truck C3500 1 ton P/U 2WD 5.7L TBI 8cyl
    See this picture http://www.autozone.com/.../N-ihzgpZ9n859

    Ignition Switch
    REMOVAL & INSTALLATION

    1988-91 Models
    Remove the column shroud halves.
    Remove the column-to-dash attaching bolts and slowly lower the steering column, making sure that it is supported.
    Make sure that the switch is in the Lock position. If the lock cylinder is out, pull the switch rod up to the stop, then go down one detent.
    Disconnect the actuating rod from the switch.
    Remove the two screws and the switch.

    To install:
    Before installation, make sure the switch is in the Lock position.
    Installation is the reverse of removal.




    NOTE: Ignition starter switch directs current from the fuse panel to other systems in the vehicle
    When not replaced, vehicle may experience no-start, intermittent shut down and/or current will not flow to all systems.
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