V70 2.3 T5 starting fault

SimonTh · May 16th, 2021, 15:41

Hi twice now have had a problem starting my 2002 v70 T5. Car runs and drivers fine but twice now it wouldn’t start after I have parked it up with low fuel but no low fuel warning light on and it will not start the next time I use it. I put 5 litres of fuel in it and it will start. Any thoughts.

jason11 · May 16th, 2021, 16:57

Volvos of this era are known for not wanting to start if you are low on fuel especially if you are on an incline. My s80 always had at least a quarter of a tank in to make sure it would start. Also stops crap being drawn out of the bottom of the fuel tank.

SimonTh · May 16th, 2021, 17:31

Thanks will just have to keep it topped up then. Does anybody know why/what causes it ?

Clan · May 16th, 2021, 18:05

Quote:

Originally Posted by SimonTh

Thanks will just have to keep it topped up then. Does anybody know why/what causes it ?

The swirl pot and pump unit and associated pipes . Its designed to work with just a gallon or less in there ,one of the rubber flap one way valves which keeps the swirl pot full is probably leaking ... resulting in the pot emptying when you turn the engine off with a low fuel level....

SimonTh · May 17th, 2021, 06:58

Thanks for info now I understand why it happens. So would that mean replacing the fuel pump unit or can it be repaired?

Clan · May 17th, 2021, 10:05

Quote:

Originally Posted by SimonTh

Thanks for info now I understand why it happens. So would that mean replacing the fuel pump unit or can it be repaired?

Its all one part number from volvo using the original L/H fuel gauge sender .

SimonTh · May 18th, 2021, 20:00

Does anybody know the part number?

May 16th, 2021, 15:41	#1
SimonTh New Member Last Online: Apr 2nd, 2024 20:07 Join Date: Oct 2016 Location: Birmingham	V70 2.3 T5 starting fault Hi twice now have had a problem starting my 2002 v70 T5. Car runs and drivers fine but twice now it wouldn’t start after I have parked it up with low fuel but no low fuel warning light on and it will not start the next time I use it. I put 5 litres of fuel in it and it will start. Any thoughts.

May 16th, 2021, 16:57	#2
jason11 Junior Member Last Online: Jan 29th, 2024 20:08 Join Date: Jun 2010 Location: pershore	Low fuel Volvos of this era are known for not wanting to start if you are low on fuel especially if you are on an incline. My s80 always had at least a quarter of a tank in to make sure it would start. Also stops crap being drawn out of the bottom of the fuel tank.

May 16th, 2021, 17:31	#3
SimonTh New Member Last Online: Apr 2nd, 2024 20:07 Join Date: Oct 2016 Location: Birmingham	Thanks will just have to keep it topped up then. Does anybody know why/what causes it ?

May 17th, 2021, 06:58	#5
SimonTh New Member Last Online: Apr 2nd, 2024 20:07 Join Date: Oct 2016 Location: Birmingham	Thanks for info now I understand why it happens. So would that mean replacing the fuel pump unit or can it be repaired?

May 18th, 2021, 20:00	#7
SimonTh New Member Last Online: Apr 2nd, 2024 20:07 Join Date: Oct 2016 Location: Birmingham	Does anybody know the part number?

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