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Volvo penta 740 lower unit will not go down.

I have a 1991 regal with the volvo penta 740DP. The lower unit will go up but not down. I have replaced the tilt motor, all three sylinoids(even the trailer switch under the dash), redone the wiring, and re-ran the ground cable. I have drained and replaced fluid several times as well. I am stuck. Any one had this problem.

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  • thomas foster
    thomas foster May 11, 2010

    does the motor hummm when you push the button?

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Kind of sounds like the trailer switch is in control. Many of these switches have lockouts and if you move the outdrive past the trip point the other solenoids are dead. Watch fingers. There may be a tilt switch on the water side of the transom in the pivot housing.

Posted on Jun 30, 2009

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