Technical Fiat doblo multijet struggling to start when warm

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Technical Fiat doblo multijet struggling to start when warm

Markscott

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Apr 12, 2021
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Hi I’m brand new to the forum so thanks for letting me join,
I have just bought a fiat doblo 1.3 multijet van,
Starts and runs great until it’s warm and I turn it off for ten minutes or so then it’s taking some starting,
If I turn it off then start it straight away it’s ok, it’s just when it’s left for a bit,
Please please any advice would be much appreciated thanks mark
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I had until today a hot start problem, looked at everything over the past months to sort it, in the end decided it was the HP fuel pump, my thyroid was that when the engine was warm the parts in the pump expand and when cranking at starter speed the pump can’t deliver the pressure, once started at Rickover and beyond the pressure was sufficient for the engine to run.chances it in the end and forked out , twenty minute job and now engine starting at all temperatures.
 
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