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Crankshaft sensor replacement

Discussion in 'Omega How to and FAQ's' started by blotto_otto, Sep 23, 2005.

  1. blotto_otto

    blotto_otto Vxon's car whore VxON Club Member

    Messages:
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    Location:
    Gods city, aka Bristol
    Drives:
    Saab 93 Aero Hot (b204r)
    Common faults are cutting out whilst driving along normally, failure to start and with all this, probably no fault code to use!


    Crank sensor is a piece of piddle to replace.
    1) Jack up nearside of car and locate the end of the sensor which is just under the oil filter
    2) Undo the torx bolt (no.6 or 7 iirc) or an equivelant socket
    3) Pop bonnet and remove wipers and scuttle tray
    4) At the top right of the engine, normally just right of the middle of the engine and down a bit is the plug. This will be either rectangular or oval.
    [​IMG] (courtesy of laidback66) CHECK THAT YOU HAVE THE RIGHT ONE AND DONT TAKE ANYONES SO SAY EXPERT ADVICE. I took the word of a vox mechanic and ended up with the wrong one.
    5) Replace old with new, threading the aformentioned plug up, making sure that you ensure the sensor lead is away (cable ties) or suitably insulated from the exaust, plug the top plugs together, replace the small torx bolt to about 15nm, replace scuttle tray, wiperblades etc and bobs your uncle!!
    In theory, it should take no more than 30 mins (now i know what i have to do, 15 mins lol!!)
    If you attempt to re-route the new sensor then you probably have too much time on your hands as its a bugger! lol. Best thing to do is to cut both ends off as much as possible or just tuck out of the way.
    It's not a difficult job and probably a good thing to be able to know.
  2. Marks DTM Calib

    Marks DTM Calib Omega Tank Commander

    Messages:
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    Location:
    Nottingham
    Heres a pic of the crank sensor location when viewed from below

    [​IMG]

    Note the later V6 oil filter which accepts a disposable cartridge and not a screw on can
  3. blotto_otto

    blotto_otto Vxon's car whore VxON Club Member

    Messages:
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    Location:
    Gods city, aka Bristol
    Drives:
    Saab 93 Aero Hot (b204r)
    ahh, the one picture i forgot to take!! cheers mark.
  4. Marks DTM Calib

    Marks DTM Calib Omega Tank Commander

    Messages:
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    Location:
    Nottingham
    Run it to the right of the engine just behind the ABS pump, it can be cable tied to the heater hoses etc, just keep some slack at the bottom and don't get to close to the exhaust/manifolds
  5. omega2.5v6

    omega2.5v6 New Member

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    Location:
    Edinburgh
    help

    guys i have an omega 2.5 v6 on a 'V' plate new shape but the older engine. How do i find out what type of sensor to buy? i have found a few on ebay but not sure if they fit? or do you know anywhere i could get a cheap one?

    Cheers Davie
  6. SRi

    SRi Active Member

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    Location:
    Cleethorpes on the Humber estuary.
    Suppose you have it sorted by now, if not, ask Vauxhall dealer (in person):rolleyes: with engine number.
  7. laidback66

    laidback66 Guest

    The only GUARANTEED way to know which you need is to look at it.

    It sits behind the rear multiram at the back of the engine.
    Access is much improved with scuttle removed.

    See photo in blottos description (for reference that is a square edged connector).

    The giveaway is the shape of the connector.

    Early ones has a connector with square sides.

    Later ones had a connector with rounded sides.

    Post 98. they really should be all rounded connectors.

    Here is a link to the ebay seller that a few people have used, and all have been happy. :)
    http://stores.ebay.co.uk/Vauxhall-Spares-Centre_W0QQssPageNameZviQ3asibQ3astoreviewQQtZkm

    If anyone has any questions, just PM me. :)

    Dave
  8. tontol

    tontol New Member

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    Location:
    ISLE OF WIGHT
    if it helps, i used a piece of string to pull the plug up through and avoid the manifold - saved a lot of effort
  9. garybeavis

    garybeavis New Member

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    Location:
    ashingdon essex
    gary

    hi followed your instructions peice of cake the only problem is the sensor end that goes into the engine is coverd in oil; is this normal or have i got more probs; anybody help us on this one thanks
  10. Otguk

    Otguk New Member

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    Location:
    Norwich,UK
    Sorry if am hi-jacking this link....

    I have a N reg Vectra B. 2lt sri.....

    Engine management light came on and the code was 0335. Crankshaft Sensor.

    Now I ordered my part b4 reading this past so I might have the wrong part but I hope not as it was done by car reg but.....

    What I am now doing is looking for the sensor. I dont see it near my oil filter. Is it the part in the picture labed A.

    Also in the picture labeled B I see a bracket with no screw in it! Should there be one? What its the bracket for?

    [​IMG]

    A picture of my part, what am looking for under the car....

    [​IMG]

    As we can all see its nothing like A in first picture. Near the oil filter as you look at it from beneath is a small, 3mm clip like wire that goes into a bolt just above the oil filter. I really hope its not that one as it has what looks like an earth wire coming of it to.

    First post so probably all the wrong info you need, to much/little so be kind.......

    Thanks.

    Edit...
    Pictures a little big sorry will look into making them smaller....

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