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Thread: it wont run

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    it wont run

    Hi, I'm after some advice regarding my V70 2.4. Basically it wont run, Its been sitting a while so I put a fresh battery in and it initially fired but was idling really badly, like it only had 2 of the 5 cylinders firing and was vibrating something horrible but then it cut out completely and refuses to start at all now. Has anyone had a similar problem? Could it be a coil pack? Any advice would be great

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    You really need a code reader. By swapping plugs, coils and injectors around you should be able to pinpoint which parts are at fault.

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    weagie (Tuesday 28th March 2017)

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    I'll give that a go. If its not the coils what should i look into? besides a litre of petrol and a match.

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    Check there is fuel getting to/through the injectors.
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    The reason it won't restart is probably because it flooded itself and is now borewashed.
    If the engine only ran for a very short time and was stone cold and not firing on all 5, then this is highly likely.

    Getting the engine to restart will be difficult, if you don't know what your doing or listening to how the engine 'sounds' on cranking. A borewashed engine sounds very different to one that is not borewashed and has full compression.

    If it's been stood for a long time, then it may take a while to fill the hydraulic tappets with oil, so the car may run like a sack of spuds until they are filled and ignition timing then correct.

    You may be able to get it going by listening to the engine on crank and knowing if/when it has compression. If you don't get this right in the first 15 seconds or so, you'll flood it even more, making the situation worse!

    Then only way you'll get it going then, will be to remove the fuel pump fuse and try again, to get the compression back.

    If that fails, then your in for the long haul, meaning Spark plugs will need to be removed, fuel pump fuse and then crank until compression regained. Then refit plugs 'Hot' (heat them up with an hot air gun....Makes a huge difference!!) Refit then prey it starts

    Remember not to touch throttle (let the ECM control fuelling) and don't kill the battery or starter motor.

    Having a donor car with good jump leads will improve your chances ten fold, because the engine will crank much faster, improving compression and more likely to start.
    Last edited by LeeT5; Thursday 30th March 2017 at 03:18.
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    weagie (Thursday 30th March 2017)

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    Sadly the battery suffered a bit so thats on charge right now and once its done I'll give it another go. Many thanks for all the advice.

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    If that's the case, you may as well pull out all the plugs and give them a clean.
    2014 V60 Polestar 6spd Auto :: Polestar map peak boost 17.4psi :: IPD 3" DP + 150cel :: Polestar 2.5" exhaust :: Paddle Shift Geartronic :: Black glass :: Maxton Splitter :: K+N Filter :: IPD Aluminium Top engine mount :: Brembo 6 pots :: 20" Polestar rims :: Brembo 371mm floating discs :: Sensus RTi + DAB + BT + WIFi :: D3S XENARC 6000k Active bending headlights


 

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