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Where does this wire go? 200

posted by  someone claiming to be hurgie on  Sun Apr 10 14:34 CST 2005 [RELATED]

1988 240 DL.

There's some sort of an electrical box on the right side of the engine compartment just below the coolant tank. At the bottom of the box is a white, almost clear, wire that goes somewhere by the intake manifold. I found this wire just hanging beneath the intake manifold and was wondering if anyone can tell me what it is and where it goes. I've felt under there the best I can and I can't seem to find any connector that's missing a wire.

Thanks.








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    Where does this wire go? 200

    posted by  B.C. on  Sun Apr 10 17:20 CST 2005
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    last visit: Wed Mar 28 22:28 CST 2012
    [RELATED]

    You do not mention what year you have.

    Enough 240s are similar that I'll hazard a guess.

    The electrical box is the ICM, ignition control module, a computer that controls spark advance.

    The wire you speak of, is it rather fat, and starts out connected to a vacuum thing on the ICM near the bottom of it? If so, that is a nylon tube, not a wire. It connects to the intake manifold and feeds manifold vacuum to the ICM. It is important. Without it you should note poor acceleration and power.

    Look for a fitting on the intake manifold that has a rubber elbow on it, and that nylon tube goes on the other end. The sides of the elbow are about 1-inch. From the intake manifold it points forward and the 90 degree bend points downward. The nylon tube comes up vertically to connect.

    Good Luck,

    Bob

    :>)








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      Where does this wire go? 200

      posted by  someone claiming to be hurgie on  Mon Apr 11 01:20 CST 2005 [RELATED]

      Thanks Bob. Based on your description of the tube and where it comes from I think you've nailed it. Sorry about not including the year, it's a 1988. You're also correct about it not running well.







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