Question about 2004 Volkswagen Golf

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Car not starting when engine is still hot . will start no probs when engine temp is cold first thing in morning but after a journey and engine is up to working temp it will not start till temp drops to about 70

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  • Anonymous Jul 22, 2008

    After driving a while - hot engine, if I stop and try to start the engine it either will not turn over or rumbles to a start?? No probs from cold

  • habgoodjohn May 11, 2010

    golf tdi 1.9 has truble starting when hot

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Could you give me more info plz

Posted on Jul 30, 2008

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I'm assuming the engine cranks with the starter but does not start and run.

check the operation of the cold start injector. This is a separate fuel injector that injects fuel into the intake manifold to help richen up the mixture for cold starts. It operates on a timer that is linked to a sensor that measures engine coolant temperature. Once warm or the timer runs out, the cold start injector is turned off. Other things to check:

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One way to check would be to have the engine controller scanned when the engine is cool then cold.
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Good luck, let me know.
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