v40 hot start problems

bigbadee · Sep 5th, 2011, 19:44

hi all hope someone can help i have a v40 2003 which starts great when cold starts within about 5 seconds no gas needed as soon as it gets warm it takes ages to start have to turn over for approx 15 seconds then stop and straight away turn the key for approx 15 seconds foot to the floor and it will then start it runs fine hot or cold have just driven it for 7 hours 350miles moterway with out stopping and it was fine it does not smoke or use oil when it is hot/warm if i prime the pump by squeezing the hand bulb it will start first time no gas needed any help please.

david philips · Sep 8th, 2011, 21:54

sounds as if you have air getting into the fuel system check all flexable fuel lines ,and make sure all pipes have not been rubbing or damaged .good luck.

Baffler · Sep 10th, 2011, 02:16

When was the fuel filter last changed? If no record change it as soon as possible.

Might also be an idea to remove the sender unit from the tank and check for algae/gunk around the nylon filter gause, it won't cost you anything other than your time.

Failing that you could have a leak-back test carried out on the injectors by a diesel specialist.

Sep 5th, 2011, 19:44	#1
bigbadee Member Last Online: May 28th, 2014 20:10 Join Date: Jul 2011 Location: ipswich	v40 hot start problems hi all hope someone can help i have a v40 2003 which starts great when cold starts within about 5 seconds no gas needed as soon as it gets warm it takes ages to start have to turn over for approx 15 seconds then stop and straight away turn the key for approx 15 seconds foot to the floor and it will then start it runs fine hot or cold have just driven it for 7 hours 350miles moterway with out stopping and it was fine it does not smoke or use oil when it is hot/warm if i prime the pump by squeezing the hand bulb it will start first time no gas needed any help please.

Sep 8th, 2011, 21:54	#2
david philips panic captain manwaring ? Last Online: Jul 2nd, 2018 17:16 Join Date: Aug 2011 Location: craggy island	hand primer sounds as if you have air getting into the fuel system check all flexable fuel lines ,and make sure all pipes have not been rubbing or damaged .good luck.

Sep 10th, 2011, 02:16	#3
Baffler Premier Member Last Online: May 11th, 2024 14:00 Join Date: Dec 2002 Location: Co. Limerick, Ireland	When was the fuel filter last changed? If no record change it as soon as possible. Might also be an idea to remove the sender unit from the tank and check for algae/gunk around the nylon filter gause, it won't cost you anything other than your time. Failing that you could have a leak-back test carried out on the injectors by a diesel specialist. __________________ Liam... '96 854 TDI SE, '99 V70 2.5D S, '05 C70 2.0T Collection, '05 S80 2.0T SE, '15 V70 D4 SE Lux Nav.

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