Join Today
Page 2 of 3 FirstFirst 123 LastLast
Results 21 to 40 of 44

Thread: D5 misfire?

  1. #21
    Senior Member
    Hoping for a miracle
    Tee5alive's Avatar
    Join Date
    Jun 2015
    Location
    Farnborough
    Posts
    506
    Thanks
    312
    Thanked 80 Times in 64 Posts
    Quote Originally Posted by davebb View Post
    Hi I would say it could be the LP pump not working as it should, you can get a pressure gauge kit cheap, or a leaking injector,
    Dave
    Thanks Dave I'll try a few more things, I have ordered Liqui Moly and pipe so I'll do that then Im cutting my losses and selling it
    http://www.vpcuk.org/forums/image.php?type=sigpic&userid=11614&dateline=143983  7674


    2004 - V70 D5 -'Black Bess' - The new addition
    2002 - C70 T5 'Ragetty Anne' - awaiting rebuild long term storage

  2. #22
    Senior Member
    Hoping for a miracle
    Tee5alive's Avatar
    Join Date
    Jun 2015
    Location
    Farnborough
    Posts
    506
    Thanks
    312
    Thanked 80 Times in 64 Posts
    Quote Originally Posted by LeeT5 View Post
    Fuel is not sucked into the injectors, the fuel pressure should be minimum 280Bar in the rail to start. Once started, the fuel pressure is kept at a regulated pressure by the FP regulator. A fuel pressure sensor, determines if enough pressure is present in the rail to enable the car to run.
    The injectors simply open/close when switched by the ECM.
    Looking at those fault codes and your symptoms I’d say you have either a faulty regulator or more commonly, the FPS is faulty.
    Sticking/faulty EGR valve would cause it to not restart, especially when cold rather than hot.
    However, once running they never normally cause an engine to just cut out and certainly don’t cause a misfire.
    If the LP pump (or electric pump in the tank) is not running, then the car would never start in the first place.
    I will also say this; on rare occasions it has been known for sludge to build up in the tank. This is sucked into the filter and will cause a low fuel pressure fault code. It will cause the car to cut out eventually and lack of power/performance.

    Hi Lee do you mean 280 PSI rather than Bar as that seems horrendously high and I can't find a pressure test kit that goes that high!
    http://www.vpcuk.org/forums/image.php?type=sigpic&userid=11614&dateline=143983  7674


    2004 - V70 D5 -'Black Bess' - The new addition
    2002 - C70 T5 'Ragetty Anne' - awaiting rebuild long term storage

  3. #23
    Senior Member
    ...here we go again...
    LeeT5's Avatar
    Join Date
    Oct 2004
    Location
    Kent
    Posts
    5,337
    Thanks
    1,075
    Thanked 1,393 Times in 1,068 Posts
    Quote Originally Posted by Tee5alive View Post
    Hi Lee do you mean 280 PSI rather than Bar as that seems horrendously high and I can't find a pressure test kit that goes that high!
    No, I mean 280bar NOT psi.
    280Bar is standard starting pressure for most high pressure diesels. When under load at high rpm, the pressure can be as much as 2000Bar in the fuel rail, yes, 2000Bar!! Which is why you should never ‘crack’ the injectors on a high pressure diesel as they will invariably leak, unless you fit new injector seals.
    Last edited by LeeT5; Monday 2nd July 2018 at 14:37.
    2014 V60 Polestar 6spd Auto :: Polestar map peak boost 17.4psi :: IPD 3" DP + 150cel :: Polestar 2.5" exhaust :: Paddle Shift Geartronic :: Black glass :: Maxton Splitter :: K+N Filter :: IPD Aluminium Top engine mount :: Brembo 6 pots :: 20" Polestar rims :: Brembo 371mm floating discs :: Sensus RTi + DAB + BT + WIFi :: D3S XENARC 6000k Active bending headlights

  4. The Following User Says Thank You to LeeT5 For This Useful Post:

    Tee5alive (Monday 2nd July 2018)

  5. #24
    Senior Member
    Gizza job!
    Yosser's Avatar
    Join Date
    Jul 2008
    Location
    The 1980's
    Posts
    1,068
    Thanks
    161
    Thanked 417 Times in 315 Posts
    Quote Originally Posted by LeeT5 View Post
    If the LP pump (or electric pump in the tank) is not running, then the car would never start in the first place.
    Not true. My experience is the car will start and run just fine with a knackered in tank pump. You're likely to "run out" of fuel due to it not transferring from one side of the tank to the other, but other than that it'll be ok.

  6. #25
    Senior Member
    Hoping for a miracle
    Tee5alive's Avatar
    Join Date
    Jun 2015
    Location
    Farnborough
    Posts
    506
    Thanks
    312
    Thanked 80 Times in 64 Posts
    Quote Originally Posted by LeeT5 View Post
    No, I mean 280bar NOT psi.
    280Bar is standard starting pressure for most high pressure diesels. When under load at high rpm, the pressure can be as much as 2000Bar in the fuel rail, yes, 2000Bar!! Which is why you should never ‘crack’ the injectors on a high pressure diesel as they will invariably leak, unless you fit new injector seals.

    OK Lee cheers I need to find a fuel test kit that will go up to that pressure.
    http://www.vpcuk.org/forums/image.php?type=sigpic&userid=11614&dateline=143983  7674


    2004 - V70 D5 -'Black Bess' - The new addition
    2002 - C70 T5 'Ragetty Anne' - awaiting rebuild long term storage

  7. #26
    Senior Member
    This user has no status

    Join Date
    Jan 2017
    Posts
    147
    Thanks
    16
    Thanked 26 Times in 23 Posts
    Read the High pressure with a OBD2 and see if it is in spec, I can give you readings from mine if you need it, look at sirobb youtube , I think he shows it at 700rpm,
    Dave

  8. The Following User Says Thank You to davebb For This Useful Post:

    Tee5alive (Tuesday 3rd July 2018)

  9. #27
    Senior Member
    ...here we go again...
    LeeT5's Avatar
    Join Date
    Oct 2004
    Location
    Kent
    Posts
    5,337
    Thanks
    1,075
    Thanked 1,393 Times in 1,068 Posts
    Quote Originally Posted by Tee5alive View Post
    OK Lee cheers I need to find a fuel test kit that will go up to that pressure.
    Use VIDA to see 'live readings' or 'Actual data'.
    2014 V60 Polestar 6spd Auto :: Polestar map peak boost 17.4psi :: IPD 3" DP + 150cel :: Polestar 2.5" exhaust :: Paddle Shift Geartronic :: Black glass :: Maxton Splitter :: K+N Filter :: IPD Aluminium Top engine mount :: Brembo 6 pots :: 20" Polestar rims :: Brembo 371mm floating discs :: Sensus RTi + DAB + BT + WIFi :: D3S XENARC 6000k Active bending headlights

  10. The Following User Says Thank You to LeeT5 For This Useful Post:

    Tee5alive (Tuesday 3rd July 2018)

  11. #28
    Senior Member
    Hoping for a miracle
    Tee5alive's Avatar
    Join Date
    Jun 2015
    Location
    Farnborough
    Posts
    506
    Thanks
    312
    Thanked 80 Times in 64 Posts
    Many thanks guys I'll get on it
    http://www.vpcuk.org/forums/image.php?type=sigpic&userid=11614&dateline=143983  7674


    2004 - V70 D5 -'Black Bess' - The new addition
    2002 - C70 T5 'Ragetty Anne' - awaiting rebuild long term storage

  12. #29
    Senior Member
    ...here we go again...
    LeeT5's Avatar
    Join Date
    Oct 2004
    Location
    Kent
    Posts
    5,337
    Thanks
    1,075
    Thanked 1,393 Times in 1,068 Posts
    This explains symtoms and clear understanding of how Diesel injectors fail on a common rail system:



    The fact your symptoms are a misfire, bad starting and long cranking are all indicative of a failing injector.
    2014 V60 Polestar 6spd Auto :: Polestar map peak boost 17.4psi :: IPD 3" DP + 150cel :: Polestar 2.5" exhaust :: Paddle Shift Geartronic :: Black glass :: Maxton Splitter :: K+N Filter :: IPD Aluminium Top engine mount :: Brembo 6 pots :: 20" Polestar rims :: Brembo 371mm floating discs :: Sensus RTi + DAB + BT + WIFi :: D3S XENARC 6000k Active bending headlights

  13. The Following 2 Users Say Thank You to LeeT5 For This Useful Post:

    davebb (Wednesday 4th July 2018),MoleT-5R (Wednesday 4th July 2018)

  14. #30
    Senior Member
    This user has no status

    Join Date
    Jan 2017
    Posts
    147
    Thanks
    16
    Thanked 26 Times in 23 Posts
    Quote Originally Posted by Tee5alive View Post
    Thanks Dave I'll try a few more things, I have ordered Liqui Moly and pipe so I'll do that then Im cutting my losses and selling it
    How are you getting on with your D5
    Thanks Dave

  15. #31
    Senior Member
    Hoping for a miracle
    Tee5alive's Avatar
    Join Date
    Jun 2015
    Location
    Farnborough
    Posts
    506
    Thanks
    312
    Thanked 80 Times in 64 Posts
    Not had a spare minute to get near it Dave. I have been assembling the kit to do a Liqui Poly purge on it. Trouble is I have to get my old dads house ready to sell as hes gone into a home now and needs the money! Up to my neck in work!

    This will be the last chance for the D5 to shape up after the injector and EGR clean. If its still misfiring I have no more time to waste on a car thats SUPPOSED to be my run about to use whilst I get the 2 T5's repaired and MOT'd! Its let me down from day one if I cant get a decent price for it I'll scrap it - IM THAT angry with it.

    I never thought a Diesel Volvo would be such a POS!!! I was looking forward to trying out a Diesel on the long runs I do - but after this experience i will NEVER buy another diesel anything! My PETROL T5's never miss a beat the V70 even got me home on 4 pots once when it lost a plug! THATS RELIABLE!

    I'll update you when I can get time to work on it.
    http://www.vpcuk.org/forums/image.php?type=sigpic&userid=11614&dateline=143983  7674


    2004 - V70 D5 -'Black Bess' - The new addition
    2002 - C70 T5 'Ragetty Anne' - awaiting rebuild long term storage

  16. #32
    Senior Member
    This user has no status

    Join Date
    Jan 2017
    Posts
    147
    Thanks
    16
    Thanked 26 Times in 23 Posts
    Hi let me know how you get on,
    Were is your dads house, is it near me, I am in Hampshire,
    Dave

  17. #33
    Senior Member
    Hoping for a miracle
    Tee5alive's Avatar
    Join Date
    Jun 2015
    Location
    Farnborough
    Posts
    506
    Thanks
    312
    Thanked 80 Times in 64 Posts
    Hi Dave

    no right down by the coast in Sussex! Cheers mate
    http://www.vpcuk.org/forums/image.php?type=sigpic&userid=11614&dateline=143983  7674


    2004 - V70 D5 -'Black Bess' - The new addition
    2002 - C70 T5 'Ragetty Anne' - awaiting rebuild long term storage

  18. #34
    Senior Member
    This user has no status

    Join Date
    Jan 2017
    Posts
    147
    Thanks
    16
    Thanked 26 Times in 23 Posts
    ok
    I hope all is well,
    let use know how the car is,
    good luck, Dave

  19. #35
    Senior Member
    Hoping for a miracle
    Tee5alive's Avatar
    Join Date
    Jun 2015
    Location
    Farnborough
    Posts
    506
    Thanks
    312
    Thanked 80 Times in 64 Posts

    Misfire update

    Today I actually got a few hours to work on the 'heap' so did the diesel purge. Sadly NOT ONE BIT of rubbish came out showing that the injectors are SPOTLESS! However as I had to remove the fuse for the LP pump in the tank, whilst running on the purge jollop........NO MISFIRE???? I ran 1 litre of DP through the injectors roughly 45 minutes with varying throttle opening particularly the misfire range of 1500- 2000. Im not sure though as there MIGHT still be a little roughness there.

    A chap in a unit next to mine came in, he runs a small garage and he showed me the injector looms often fail on the D5!!! I removed each one and reseated it but they do need cleaning with electrolube. Replaced all the pipes, replaced the fuse started up for leak tests again NO MISFIRE Hmmmm??

    The only way it manifest sitself is on a run on the motorway between 20 - 30 miles then drops into 'wimp mode' so I need to take it on a test run one evening when the flippin sun has ****ed off so if im stuck on the hard shoulder I wont be dying from sunstroke! Anyway if this thing fails on me again its the cutting torch for it or ebay! It was SUPPOSED to be a run about to get me around to sort my T5's out and its failed miserably! The chap with the garage told me "D5's are great when they behave - but if they get a problem - look out!"

    Running the purge

    Name:  p4.jpg
Views: 0
Size:  111.5 KB

    Nothing yet in the jar?

    Name:  p3.jpg
Views: 0
Size:  96.0 KB

    After test NOTHING no debris or anything so a clean injector system?

    Name:  p2.jpg
Views: 0
Size:  100.8 KB

    Fliter also spotless??

    Name:  p1.jpg
Views: 0
Size:  91.6 KB
    http://www.vpcuk.org/forums/image.php?type=sigpic&userid=11614&dateline=143983  7674


    2004 - V70 D5 -'Black Bess' - The new addition
    2002 - C70 T5 'Ragetty Anne' - awaiting rebuild long term storage

  20. #36
    Senior Member
    This user has no status

    Join Date
    Jan 2017
    Posts
    147
    Thanks
    16
    Thanked 26 Times in 23 Posts
    Hi it may be worth tacking out the fuel pump and have a look at the filter on the fuel pump in the tank to see if it is a restriction also get a cheap £10 low fuel pressure gauge
    and connect it up to were you now have new clips an see if the pressure is constant,
    Dave

  21. The Following User Says Thank You to davebb For This Useful Post:

    Tee5alive (Friday 27th July 2018)

  22. #37
    Senior Member
    Hoping for a miracle
    Tee5alive's Avatar
    Join Date
    Jun 2015
    Location
    Farnborough
    Posts
    506
    Thanks
    312
    Thanked 80 Times in 64 Posts
    On VIDA the fuel rail is at high pressure according to readings?

    Ill take it on a road test to see what happens! If it goes again ill take in limp mode to the nearest crusher!

    Thanks dave
    http://www.vpcuk.org/forums/image.php?type=sigpic&userid=11614&dateline=143983  7674


    2004 - V70 D5 -'Black Bess' - The new addition
    2002 - C70 T5 'Ragetty Anne' - awaiting rebuild long term storage

  23. #38
    Senior Member
    This user has no status

    Join Date
    Jan 2017
    Posts
    147
    Thanks
    16
    Thanked 26 Times in 23 Posts
    Hi The in-tank fuel pump is low pressure ,
    Dave

  24. #39
    Senior Member
    Hoping for a miracle
    Tee5alive's Avatar
    Join Date
    Jun 2015
    Location
    Farnborough
    Posts
    506
    Thanks
    312
    Thanked 80 Times in 64 Posts
    oh DUUUH yes of course, what sort of pressure would you expect to see?
    http://www.vpcuk.org/forums/image.php?type=sigpic&userid=11614&dateline=143983  7674


    2004 - V70 D5 -'Black Bess' - The new addition
    2002 - C70 T5 'Ragetty Anne' - awaiting rebuild long term storage

  25. #40
    Senior Member
    This user has no status

    Join Date
    Jan 2017
    Posts
    147
    Thanks
    16
    Thanked 26 Times in 23 Posts


 

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
This website uses cookies
We use cookies to store session information to facilitate remembering your login information, to allow you to save website preferences, to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.
     
ipv6 ready