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Thread: 748 Temp sensor/fan switch

  1. #1
    pate is offline Where's the kick start?
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    Default 748 Temp sensor/fan switch

    Hi does anyone know where I can get a temp sensor/fan switch for my 1998 748? I could do with buying one fairly quickly, I have been sorting the bike out getting ready for the Hizzy run at end of the month, got her up and running last night, however I let it sit on tick over to see if fan would come on, no show she was gonna boil. Fan works when wired to battery, so I think I need a new switch. Thanks again folks, almost there

  2. #2
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    From one of Dereks Posts

    https://www.onlinecarparts.co.uk/facet-2180372.html
    Fiat Punto 1.2 8v Mk 1 or2
    Last edited by cp14bob; 07.08.2017 at 07:49 PM.

  3. #3
    pate is offline Where's the kick start?
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    Default Cheers

    Thanks but if I am looking at things correctly I think this is the wrong part, the one I think I need is much bigger diamiter, it is the foremost of the two located in the manifold on LHS behind the fan. This looks likevthe other, or am i getting it wrong.

  4. #4
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    Have you checked the fan relay as they are famous for packing in.Easy way to check is swap it over with headlight relay which is the same ,if the fan still does not work its the sensor.

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  6. #5
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    Hi Pate the 2 sensors are the same.Also check the fan relay as these are guilty of failing.Swap it over with the headlight relay which is the same and that will let you know if its the relay or the sensor.

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  8. #6
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    click on picture and it zooms in part is M16 x1.5

  9. #7
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    Quote Originally Posted by cp14bob View Post
    click on picture and it zooms in part is M16 x1.5
    That's the ECU temperature sensor. There is a larger one with a single spade for the temperature gauge and there is also a 2 terminal switch for the fan. Alex's advice re. the relay is good and will determine whether it is the switch or not.
    The only one I can find just now is from Motowheels in the US. I must look harder because my 907ie uses the same part, as do all the Paso series and the 851, 888, 916 and 996.

    Old enough to know better, young enough not to care

  10. #8
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    Good Picture of Manifold and Sensors on ebay

    http://www.ebay.co.uk/itm/Ducati-748...4AAOSwaeRZIaZ6

  11. #9
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    This is a post from a few years back that I put on another forum.

    If you would like your 748/916 radiator fan to kick in a bit earlier you might be interested in one of these temperature switches. After a hunt around I found this one which cuts in 5deg earlier and has the same fitment as the Ducati's mentioned. Standard switch cuts in at 92 and of at 87deg this one cuts in at 87 and of at 82deg, hope it helps in traffic this weather.
    RADIATOR FAN TEMP SWITCH - PEUGEOT BOXER BOX 1994-2002 50134 | eBay
    http://www.ebay.co.uk/itm/1907106180...c=1&rmvSB=true
    Looks like its not available from the same supplier but it should give you the part number to locate elswhere.

    Steve
    Justice for the 96.

  12. #10
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    Here we go , this looks like the one you want. http://www.ebay.co.uk/itm/Intermotor...8AAOSwblZZKYs3
    And it is plug and play ,no wires to cut and re-conect.
    Steve
    Justice for the 96.

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  14. #11
    pate is offline Where's the kick start?
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    Cheers forvthe help folks, I was in Carlisle on Tuesday, went into Carlisle Auto Electricals, good bunch, found one that was a direct swap, and another that cuts in at 87 degrees instead of 92, got that one seems fine, delivered to me in 2 days 14.

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  16. #12
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    I love all these threads about relays and such.
    Ducati don't" make" motorcycles. They build them from selected parts, just like every other manufacturer.
    Yes they design them and oversee the build and quality control but most components are used in loads of different applications, you'll like this............my KTM 990 ADVENTURE has a Landrover tdi oil pressure switch that is also used in an Audi diesel engine !
    you can run............ but I'd rather be on my Monster

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