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Eng Fuel Filters Man CR900

Discussion in 'Engines' started by CSkipR, Mar 18, 2012.

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  1. Capt J, Oct 28, 2015
    #41
    Capt J

    Capt J Senior Member

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    No, you should not have to program anything. If I remember correctly, on the Man cartridge filters, you push the element into the housing till it clicks in and carefully get the bowl threaded and then tighten. I remember if the filter cartridge is in the bowl and you just try to screw it on,it doesn't line up correctly, and the bowl doesn't tighten enough to make a seal. But these were on the 1100 common rails where the bowl screws in from the bottom.
  2. Nicol, Oct 28, 2015
    #42
    Nicol

    Nicol New Member

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  3. Nicol, Oct 28, 2015
    #43
    Nicol

    Nicol New Member

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    Sorry I was not talking about the fuel filter I was asking if I change any sensor if I have to put computer on the engine to program it cause I changed the coolant level sensor and the coolant water pressure sensor before it's still showing the alarms on the display monitor
  4. Nicol, Oct 28, 2015
    #44
    Nicol

    Nicol New Member

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    Sorry I was not talking about the fuel filter I was asking if I change any sensor if I have to put computer on the engine to program it cause I changed the coolant level sensor and the coolant water pressure sensor before it's still showing the alarms on the display monitor
  5. Nicol, Oct 28, 2015
    #45
    Nicol

    Nicol New Member

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    Sorry I was not talking about the fuel filter I was asking if I change any sensor if I have to put computer on the engine to program it cause I changed the coolant level sensor and the coolant water pressure sensor before it's still showing the alarms on the display monitor
  6. Capt J, Oct 28, 2015
    #46
    Capt J

    Capt J Senior Member

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    If you change those sensors you do not need to put the computer on the engine or program anything. Bad batteries will also cause the Man computers to give erroneous alarms. So will a bad alarm monitoring board or display, I forget the proper name for the board. Does it give the same alarms everytime or intermittently? If intermittently that's usually a battery issue.
  7. Nicol, Oct 28, 2015
    #47
    Nicol

    Nicol New Member

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  8. Nicol, Oct 28, 2015
    #48
    Nicol

    Nicol New Member

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    It gives the same alarm everytime
  9. Capt Ralph, Oct 28, 2015
    #49
    Capt Ralph

    Capt Ralph Senior Member

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    No programming to do.
    Dumb senders/sensors.
  10. Nicol, Oct 28, 2015
    #50
    Nicol

    Nicol New Member

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    I tried to swap them with the good one but still comes up with sensor problem
  11. Capt Ralph, Oct 28, 2015
    #51
    Capt Ralph

    Capt Ralph Senior Member

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    coolant or air sender issues?
    They all work the same.
  12. Nicol, Oct 28, 2015
    #52
    Nicol

    Nicol New Member

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    Ok here are what's on the displays port and starboard image.jpg image.jpg
  13. Capt Ralph, Oct 28, 2015
    #53
    Capt Ralph

    Capt Ralph Senior Member

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    Damaged wire lead or connect at the sensor.
    The wires are pretty thin. the connects are not forgiving to abuse.
    MAN boards have some problems but not for to many sensor issues.
    What does the error say? Sensor not found? out of tolerance? or bad sensor?
  14. Capt Ralph, Oct 28, 2015
    #54
    Capt Ralph

    Capt Ralph Senior Member

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    Fix that WIF (water in fuel/fuel filter) problem. The leads to the spin on filter behind the engine (not the secondary's we were talking about last week). If no water in filter, the leads are damaged. Probably from spinning on/off the filter with the sender wires attached. There is a plug connect up from the filter about 10 - 12 inches.

    If those wires there are twisted and shorting, other false errors could be induced. The leads are a part of a wire matrix to the alarm board.

    Over all, I feel you have some damaged harness issues. one or two leads shorted to the block or other wires can do this.
    Have the engines been worked on? Got wet?
    Last edited: Oct 28, 2015
  15. Nicol, Oct 28, 2015
    #55
    Nicol

    Nicol New Member

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    ii seems sensor not found because I swapped it and it still say sensor
  16. Capt Ralph, Oct 28, 2015
    #56
    Capt Ralph

    Capt Ralph Senior Member

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    Your coolant pressure errors,, on a warm engine or cold??
    The MAN ECU must see pressure when warm.
    Make sure your full of coolant and not leaking. Take a tire pump and pump up the valve stem on the top of your expansion tank to 8 - 10 PSI (NO More).

    Re-check the coolant pressure senders.

    I'm assuming there in NOT a MAN tech in your area?

    Your getting close to the MAN curse.
    Last edited: Oct 28, 2015
  17. Nicol, Oct 28, 2015
    #57
    Nicol

    Nicol New Member

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    No it hasn't got wet .do you have a picture of the WIF filter
  18. Capt Ralph, Oct 28, 2015
    #58
    Capt Ralph

    Capt Ralph Senior Member

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    Pri MAN filter.jpg
    It's not a WIF filter, just a big spin on fuel filter with a spin on clear base bowel. Usually mounted Between turbos over the flywheel housing. The WIF sensor (water in filter) is installed in this bottom bowel. The wire leads hang down from there. The WIF wire leads get in the way when you service the raw water pump. AND will get twisted when servicing the filter.

    One more thought, If you do not have this filter, are there wires coming off your Racor (or primary fuel filter) filter bowels?
    Last edited: Oct 28, 2015
  19. Nicol, Oct 28, 2015
    #59
    Nicol

    Nicol New Member

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    Ok I saw that filter and yes they the wire was
    touching together and making shorts so I separated them apart and the fuel filter alarm went off so now the coolant sensor is still there I checked the level and it full and also it's a new sensor why is it saying something is wrong with it .Also there is no man Tec in seychelles I have to try and figure out myself
  20. K1W1, Oct 28, 2015
    #60
    K1W1

    K1W1 Senior Member

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    If you are getting WIF Alarms and the clear bowl is clean and no water in it another cause can be any additives and or biocides in the fuel. Some of these make the fuel conductive.
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