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Vauxhall Combo 2000 CDTI 1.3 Weird warm start problem

Discussion in 'Car Repairs / Maintenance' started by ktmam, 28 Jan 2011.

  1. ktmam

    ktmam

    Joined:
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    Location:
    Sussex
    Country:
    United Kingdom
    Always starts fine in the morning from cold, however when warm, it has a problem starting at least once a day. About 4 out of 5 warm starts are ok. On the problem start, it turns over ok (starter motor sounds good and strong) but either won't start at all or runs very very rough and shakes for about 5 seconds and then dies. Once like this it won't start despite repeated attempts. However I have subsequently discovered that if parked on a slope, and I roll forward, try the start and drop the clutch it will start and run fine! In desperation I have even started it on level ground using the starter motor to get a bit of momentum. Next morning starts fine again. Anyone have any suggestions as to what might cause this peculiar behaviour?
     
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  3. Belle427

    Belle427

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    Location:
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    id guess at a sensor breaking down under heat, coolant temperature maybe?
     
  4. jetex

    jetex

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    Location:
    Merseyside
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    Always make sure that the vehicle is on level ground, and with AT LEAST a quarter of a tank of fuel (Vauxhall fuel guages are notoriously unreliable when they get to a quarter). If the trouble persists, change the fuel filter ( a partially blocked fuel filter will reduce the system pressure in the fuel rail). Looking on the black side, your 'in tank' low pressure fuel pump could be failing. Good Luck !
     
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