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Thread: occasional poor starting 1.8

  1. #1
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    Default occasional poor starting 1.8

    I have a minor problem with starting.

    Usually, the car stars up ok with no problems, and the car drives fine. However, If I start up the engine from cold for a very short journery (eg. moving car from drive to road so that my wife can get hers out of the garage) stop the engine, and then try to restart it say 10-15 mins later, it doesn't like. It usually turns over and starts up ok but, occasionally the revs die away to zero. Sometimes I can sense its going to happen and I can force it to keep going by dabbing the accelerator once to get a steady idle. On a couple occasions this year this has resulted in a yellow engine light and limp mode. The limp mode dissapears on the next successful start, and the engine light goes away after a few successful starts. There is no problems starting after a 'normal' short journey.

    Has anyone else had such a behaviour? Is it normal or am I just flooding the engine? Any ideas or advice appreciated.

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    Regular Member Gsi3.2's Avatar
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    you're flooding the engine.....

    Now that there is no choke on the modern engine they get around cold strting by literally flooding the engine with a very rich mix when it first starts..(it's called the cold start routine).. to get the engine to continue to run.. this 'cold start routine' runs for about 2 minutes during which you shouldn't really stop the engine as it leaves a rich vapour in the cylinders which snuffs the spark out..The recommended way to start a flooded engine is to hold the accelerator pedal to the floor ( to maximise incoming air) and to trun the key until it catches.. this could be as long as 30 seconds and will really beat up the battery but itr is the only effective method..

    You really should avoid this stop start morning routine as it's bad for the car..too rich a petrol vapour can cause bore wash in the cylinder robbing it of it's oil lubrication at just the time it needs it, long term, leading to premature engine wear..

    if you need to do this manouvere every morning, take the car round the block before turning it off..

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    Regular Member Karl's Avatar
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    I know I had the same fault on mine, it is cured by running the car for a while before turning off, then again, mine needed the ecu software updating which made it even better.

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    Default

    Many thanks for your informative replies. I guess my engine is 'normal' and my driving 'abnormal'. On the occasions that I need to move the car a very short distance, I will take it around the block or keep the engine running for a couple of minutes. It will be better for it longterm. I''ll also remember your 'flooded engine tip', just in case.
    Thanks

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