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Slow Plow MMI

Discussion in 'Truck & Equipment Repair' started by scd, Dec 29, 2009.

  1. scd

    scd Junior Member
    from ma
    Messages: 1

    Have a MMI that is really slow. Changed fluid & filter in the tank. Tried a new motor and didn't change. Have good pump pressure, can turn it up to 3000psi, doesn't make a difference. Put friends plow on my truck and his works fine. Any thoughts? Pretty frustrated.
  2. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    Have you had the valves out lately to check for accumulated debris on them? If not you may want to take a look. How'd the reservoir and pickup screen appear? Not too bad or rather cruddy?

    Plow side battery harness look good?