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  • avatar karjunkie 12/07/09 4:53 pm PST

    What year is the truck? It sounds like you need a new actuator. That noise you hear is the actuator trying to engage the 4WD.

Answers

  • karjunkie 12/07/09 4:53 pm PST

    What year is the truck? It sounds like you need a new actuator. That noise you hear is the actuator trying to engage the 4WD.

  • daphniesman04 12/07/09 6:10 pm PST

    its a 1999 i think it locks in sometimes it will say lit sometimes not i just bought it and hope to see if it works

  • karjunkie 12/08/09 7:42 am PST

    OK, check the actuator and the vacuum hoses going to it. The actuator costs $120 at the dealership and $50 at your local auto parts store. That tends to go out if you do not use your 4x4 more than a couple of times a year. That actuator uses a vacuum line to move and shift the gearing or assist in it. It's under the battery tray (the battery tray is held down by 4 screws, 3 in the top part of the pan where the battery is, and one screws into the pan from the wheel well). Pop that off, and you will see the actuator. Its got a diaphram with a wire going into the center, and on the bottom of the side of the actuator is the vacuum line. Disconnect that vacuum line first so its out of the way. For the wire that goes into the actuator, there is a pin holding it in place. remove the pin (it holds the wire in place) and then its free to be removed (once you remove the screws from the back of the actuator, there are 3 of them if I remember right). In the future, engage the 4WD at least once a month to keep everything working correctly.

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