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Thread: oil pressure light

  1. #1
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    Default oil pressure light

    Hi,
    can anyone help me. I have a Vectra c 1.8 2003 16v. The oil pressure light keeps coming on. I would top it up with 2 letters of oil, and the light would go out for maybe 2 weeks and then come back on. THis happened for a good 3 months.
    Then i recently change the oil to see if this would help. I changed the oil and again 2 weeks letter the light has come back on.

    Any one ever experianced this?? and how can i fix or test oil pump, pressure valve and oil sucker in sump??

    Thanks

  2. #2
    Regular Member Exclusive BV's Avatar
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    Default

    the oil must be going somewhere have you checked for leaks?

    is the headgasket gone?
    driveshaft seals?

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    Vehicle : BMW

    Trim : 320D

    Engine : .

    Year : 2009

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    Driveshaft seals?!? Since when does engine oil..erm?! Oh dear

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    Vehicle : Vectra

    Trim : Design

    Engine : 1.9CDTi

    Year : 2005

    Mileage : Lots

    Default

    Quote Originally Posted by JJ0063 View Post
    Driveshaft seals?!? Since when does engine oil..erm?! Oh dear
    Well he's almost there with the shaft bit! Crankshaft seals would be one to check. You'd see it splashed around the crankshaft pulley at the bottom of the engine, the rear one would be a sod to get to unless there's any bungs in the bottom of the gearbox bellhousing that you could open and see if any oil drained out.

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    Default

    Thanks for the reply. I doubled checked the warning light and its actual a low oil light warning. Oil can with a wave under it.
    There is never any oil puddles or nothing. I do all motorway driver for long periods of time.

    Wheres the oil going to?? IF its berning burned i would see smote but I don't. When i check the dipstick after a long drive and when engine is hot, it is clean no oil.

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    Vehicle : Vectra

    Trim : Design

    Engine : 1.9CDTi

    Year : 2005

    Mileage : Lots

    Default

    Then there's not a lot of oil in it to start with! If it was burning that much you'd probably see a lot of smoke and definitely smell it. It has to be leaking out from somewhere but without being able to lie down underneath it or anything, hard to say.

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    Default Car on ramps today

    ok to sum everything up. the oil level light start to come on regular for about 3 months. I would top up with 2 lt, light goes out, 2 weeks latter light back on. I decided to drain and change the oil filling it full to see if that cured the problem. I refilled the oil with 4 lt of new 5-30 fully senthetic. about 2 weeks on the light has returned. I have watched for leaks under the car with nothing leaking out.

    Today i had car on ramp. no leaks that i can see. but light was on today. I have added another 1 lt making in total 5 within the 1 month.

    I do a lot of motor way driving , about 500 - 600 miles a week.
    Any Ideas as i am realy confused. Like post above, no smoke or smells, car runs normal, but dip stick is showing empty??

  8. #8
    Regular Member C-Owner's Avatar
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    Default

    Ensure the oil level is max on the dipstick and the cooling system is at the correct level and the car is parked on flat ground.

    Let the car idle at normal temperature till the cooling fan kicks in, this is to allow the engine to reach its normal working tolerances.

    Turn off the engine and remove the spark plugs to see if any show signs of oil deposits on them.

    This will indicate if your engines burning oil in the cylinders via the piston rings or valve stem seals.

    White ash or the obvious wet oily look

    plugs.jpg
    Last edited by C-Owner; 5th March 2013 at 20:47.

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    Default

    hey thanks all for your reply's. I will check the plugs tomorrow and get back to yous. Dam things a torture at the moment lol

  10. #10
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    Default

    My old Omega started to go through oil like that a few years ago. I did mostly motorway driving then and never noticed anything, smell or smoke. One day on joining motorway and booting it there was a big but brief cloud of smoke. When eased of the juice it stopped. Turned out it was the piston rings.

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