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Thread: 3.2 coolant loss and mayo on oil cap

  1. #1
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    Default 3.2 coolant loss and mayo on oil cap

    the missus 3.2 is using water with no apparent leak had a look today and took oil cap off and there is loads of creamy cack on the cap and down the filler tube,

    the coolant looks ok to me but im no expert maybe slightly dark at the bottom not really sure how it should look.

    so it looks to me that a head gasket might have gone? could it be anything else?

    Thanks!

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    Admin & Merchandise Manager bigmac's Avatar
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    Vehicle : insignia

    Trim : irmscher

    Engine : 2.0 cdti

    Year : 2009

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    iirc its quite normal for creamy crap on oil cap esp with the 3.2 engines, Not sure about water leak it maybe related but i would check Rad

    Irmscher Insignia CDTI 130

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    Full Member Big Sig's Avatar
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    its normal to have mayo in the cap due to its rubbish design allowing it to sit in the cold air.

    What is the oil on the dip stick like?
    Now I need a turbo to keep up!

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    Regular Member bigcarman79's Avatar
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    Its probably nothing to worry about, The 3.2s are well known to getting mayo on filler cap and neck due to how the cold air flows over it, Undo the filler cap, Twist off the filler neck, and then replace the filler cap directly onto the rocker cover.
    As for coolant loss...ckeck radiator and coolant pipes. HTH

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    it seems that the length of the filler neck is what causes it from what i can gather im a bit calmer now lol
    we had a avensis 2.2 d4d before this and the headgasket went on that twice so thats made me jumpy.

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    thanks for that guys I was in a bit of a panic will take the tube off and see what happens
    the dipstick looks fine. Now I feel like a dipstick now for assuming the worst!

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    Regular Member Das's Avatar
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    Vehicle : Lada

    Trim : Riva

    Engine : 6.0 V12

    Year : 1954

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    If its loosing water with no apparent leak id say its best to get a sniff test done to at least put your mind at ease.

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    What is the sniff test?

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    Full Member Big Sig's Avatar
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    Sniff test is a hydrocardon detector that can "smell" any exhaust fumes in the header tank

    Or get your local friendly MOT station to stick their exhaust probe in there as it shouldn't pick up anything.
    Now I need a turbo to keep up!

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    VIP-Member GSiFan's Avatar
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    Vehicle : Vectra

    Trim : GSi

    Engine : 3.2 V6

    Year : 2003

    Mileage : 202,000

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    My 3.2 loses coolant from the front left (as you look into the engine bay) of the radiator, right at the bottom. In my case, a replacement radiator is the only logical repair. Luckily, mine is only a very slow leak. I am keeping an eye on it until I can afford a radiator.

    Look for a puddle under the front of the car between the centre of the front bumper and the offside corner. If you have one, then your radiator may be on its way out.

    There are ways to check for a head gasket issue, as already mentioned. You can also do a leak down test - part of the "diagnosis" that a main dealer would do. You would need a compression tester, though. The sniff test is also valid, as would be looking for bubbles in the expansion (header) tank whilst the engine is running. Also, oil in the coolant or very dirty coolant can be a tell-tale (not always). Is the engine oil really sludgy?

    Paul
    2003 Vauxhall Vectra GSi 3.2 V6

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