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Thread: CDTI slow to start

  
  1. #1
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    cornwall's Avatar
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    CDTI slow to start

    I have had my 04 Astra Diesel for a couple of months now but over the last week, it has been sluggish to start - as if the lights had been left on. This has not improved even though I have since done 500 miles- with few short hops. The engine cranks slowing for 3 or 4 seconds then starts & runs fine. No engine lights other than the oil light which stays on for 4 seconds after the others. Oil level is fine and car seems reasonably well looked after. Before last week starting was almost instant.

    The battery is a Vauxhall one and looks like a 400a maintenance free unit - probably the original.

    It read 12.7 volts when checked today but I am not sure if I can recharge it. The reading said it was 83% efficient.

    I reckon it will fail to start at all sooner rather than later. Any advice please?

    New battery?

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    do you mean when you first start in the morning for example its slow?

    if so its because the engine has a system which limits the boost until it reaches a certain temperature, this means for the first 10 mins or so it'll be a tad slower than usual,


    welcome to AOC
    Drives - 08 Astra SRi XP 1.9CDTi 150

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    Thanks for the welcome and reply. This is my third Vauxhall following a couple of petrol estates - Cavalier c.1985 model and Astra c1996.

    Yes in the morning - the actual speed of the car is not a problem just the sad sound of it trying to get going. It runs fine. If I stop for fuel, the restart isn't so bad.

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    will more than likely just be the inbuilt protection system then,

    iirc water temp needs to be 60 degrees C before the boost is to its normal level, (may be well off with those figures)

    I notice it alot when I first pull away when its already been up to temp and think "that alot quicker than usual"
    Drives - 08 Astra SRi XP 1.9CDTi 150

    Beer is living proof that God loves us and wants us to be happy.

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    nry's Avatar
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    Do they not mean it is slow to start i.e. when you turn the ignition key it is slow to start? Not slow as in speed of driving when you pull off from cold...unless I misread things?

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    Yes, slow to start - the speed and running of the car is fine.

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