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850 / S70 & V70 '96-'99 / C70 '97-'05 General Forum for the 850 and P80-platform 70-series models |
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Help! V70 Tdi - intermittent starting issue driving me nuts!Views : 694 Replies : 6Users Viewing This Thread : |
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Aug 1st, 2014, 19:09 | #1 |
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Location: Taunton
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Help! V70 Tdi - intermittent starting issue driving me nuts!
Dear all helpful peoples
My 98 manual V70 2.5 tdi is causing me some grief for the first time in its 215k miles... -at times when key is turned the engine turns over and nothing happens -at times it catches and stutters -at times it starts fine Once going its absolutely sweet as a nut. Facts: -there are no fault codes showing -there was some air in the system but 2 mechanics think they got it out -fuel filter is properly seated and connected -the last service was 1400 miles ago -diesel pump belt is due a change -I cant work out whether its temperature related. I think not - its not started cold and not started once warm at times. Can you help? Many thanks!
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1999 V70 tdi manual estate 1997 850 t5 manual estate |
Aug 1st, 2014, 19:36 | #2 |
DPF free.FCUK Greta he he
Last Online: Mar 28th, 2024 13:38
Join Date: Jun 2012
Location: Bristol
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Immobiliser ... Mine does it periodically.. Take the key out of the ignition , wait a few seconds , put it back in and it normally goes.
Sometimes mine will go months without doing it and all of a sudden it might happen several times in a row. Changing the antenna on the barrell sometimes cures it.. I choose to just live with it on mine. Last edited by rudi dudi; Aug 1st, 2014 at 19:39. Reason: Typo |
Aug 1st, 2014, 21:32 | #3 |
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Last Online: Dec 10th, 2020 09:39
Join Date: Oct 2012
Location: Caldicot
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Sounds like a fuel delivery problem to me.
If you have compression and fuel and everything is timed correct it should start. The fact that it sometimes starts ok suggests timing and compression is good so the only other thing that it could be is a problem in fuel delivery. That it sometimes starts and stutters again leads me to think your issue is fuel related.
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Where are we going and why are we in this hand basket? |
Aug 1st, 2014, 21:48 | #4 |
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Last Online: Feb 20th, 2019 18:16
Join Date: Apr 2006
Location: mk
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Please disregard CPH. It won't be a intermittent fuel delivery issue. Or more specifically it will....caused by the immobiliser!!!
Mine did this 30000 miles ago, I cleaned the contacts and it's been fine since. If the pickups broken it costs £30. It is the immobiliser as per rudi dudi says. Specifically the inductive pickup of the transponder from the key. Undo the lower shroud unplug the plug to the pickup and clean with servisol and reconnect. Edit - use this link.... http://www.volvoforums.org.uk/showth...t=anntena+ring
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1999 C70 T5 GT ME7 |
The Following User Says Thank You to thetroublemaker For This Useful Post: |
Aug 1st, 2014, 22:19 | #5 |
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Last Online: Jan 1st, 2019 23:03
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Location: Taunton
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Thank you people!
Is there any way of disabling the immobiliser if this is likely to be an ongoing problem? Cheers!
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1999 V70 tdi manual estate 1997 850 t5 manual estate |
Aug 2nd, 2014, 09:49 | #6 |
Master Member
Last Online: Apr 10th, 2024 16:20
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Location: Loughborough
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Once going its absolutely sweet as a nut. Facts:
-there are no fault codes showing -there was some air in the system but 2 mechanics think they got it out -fuel filter is properly seated and connected -the last service was 1400 miles ago -diesel pump belt is due a change -I cant work out whether its temperature related. I think not - its not started cold and not started once warm at times. If it turns out not to be the antenna ring it may be the pump timing out. If it's due a change as you said then it's probably worn and hence poor starting.
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2008 V70 SE D5 Auto 185 ...now 205 Volvo Polestar......190k Passed away - 1999 V70 2.5tdi Auto 340632 miles, RIP. |
Dec 28th, 2023, 13:42 | #7 | |
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Last Online: Apr 16th, 2024 19:13
Join Date: Feb 2010
Location: Weymouth
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Quote:
Anyways, it did start and I flew home as usual, runs beautifully. Did what you said about cleaning the antenna ring to see what happens. All seems OK so far. Many thanks 👍👍
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