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Thread: Engine runs OK but has no power

  1. #1
    Join Date
    Jan 2017
    Location
    Romania
    Posts
    92
    My Cars
    e39 528i

    Engine runs OK but has no power

    My M50B20 Vanos got a engine bay washing & degreasing 2 months ago.
    Ofc i was an idiot and got wather on all the electrics under the intake ( who would've thought, right? ). The engine started to stutter and not run smooth at all, but after a little fiddeling with all the connectors i got it to run good.
    I did removed the vanos selenoid to get acces to the wires underneath and put it back on.

    After 60 miles on the highway, it started to lose power, like i was always having the A/C on...even worse.
    After that the car was not driven for about 2 months.

    What did i broke? Can the selenoid cause the engine not to engage the vanos?
    I mean...it runs good, like always, but has no power.
    thx

  2. #2
    Join Date
    Apr 2016
    Location
    Santa Clara, Ca
    Posts
    67
    My Cars
    1993 525i
    Make sure the spark plug holes are not full of water or oil.

  3. #3
    Join Date
    Jan 2017
    Location
    Romania
    Posts
    92
    My Cars
    e39 528i
    All clean

  4. #4
    moroza's Avatar
    moroza is offline MORΩN ΛABIA BMW CCA Member
    Join Date
    Sep 2006
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    BFE
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    11,090
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    E34T

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