1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Welcome To LandyZone!

    LandyZone is the biggest Land Rover forum on the net. We have plenty of very knowledgable members so if you have any questions about your Land Rover or just want to connect with other Landy owners, you're in the right place.

    Registering is free and easy just click here, we hope to see you on the forums soon!

Disco 2 v8 keeps cutting out randomly

Discussion in 'It's A V8 Mate!!' started by Henry.adams, Nov 26, 2021.

< Previous Thread | Next Thread >
  1. Henry.adams

    Henry.adams Member

    Joined:
    Nov 26, 2021
    Posts:
    42
    Likes Received:
    13
    Location:
    Kent uk
    Ok thanks for the help I will definitely look into the crankshaft position sensor
     
  2. JUKE179r

    JUKE179r Well-Known Member

    Joined:
    Jul 5, 2018
    Posts:
    2,612
    Likes Received:
    1,304
    Location:
    Suffolk County
    The CPS is one of those parts if you never replaced it before, it’s best to replace it with another Bosch.
     
  3. Henry.adams

    Henry.adams Member

    Joined:
    Nov 26, 2021
    Posts:
    42
    Likes Received:
    13
    Location:
    Kent uk
    Will do mate is it a hard job?
     
  4. JUKE179r

    JUKE179r Well-Known Member

    Joined:
    Jul 5, 2018
    Posts:
    2,612
    Likes Received:
    1,304
    Location:
    Suffolk County
    Not so much a hard job but it’s a PITA to get to on the rear LH side of the engine.
     
  5. Henry.adams

    Henry.adams Member

    Joined:
    Nov 26, 2021
    Posts:
    42
    Likes Received:
    13
    Location:
    Kent uk
    Update

    Problem seems to be fixed after making some room in the engine bay I ran my 2 battery’s in parallel (I didn’t want to spend the money for a bigger one) and I have had that running for about 6 hours of driving with no problems. Thanks to everyone for the help and I hope this will help someone else one day
     
    hef19898, JUKE179r and Scotiawhiskers like this.
  6. Marshall8hp

    Marshall8hp Well-Known Member

    Joined:
    Dec 29, 2019
    Posts:
    283
    Likes Received:
    260
    Location:
    Sydney
    You have a dodgy battery then Henry.
     
    Henry.adams and kermit_rr like this.
  7. kermit_rr

    kermit_rr Green Member Full Member

    Joined:
    Dec 9, 2018
    Posts:
    18,433
    Likes Received:
    22,524
    Location:
    North Shropshire
    Did you check the alternator is charging properly?
     
    Henry.adams likes this.
  8. Henry.adams

    Henry.adams Member

    Joined:
    Nov 26, 2021
    Posts:
    42
    Likes Received:
    13
    Location:
    Kent uk
    Alternator was recently changed been running the 2 battery’s in parallel fixed the problem got stuck on a byway for 7 hours yesterday after loosing drive and power steering. running the winch constantly engine didn’t cut out once.

    think both the battery’s I had where too weak but together they are more than enough
     
    Last edited: Dec 28, 2021
    Scotiawhiskers likes this.
  9. Essex Mike

    Essex Mike Member

    Joined:
    Jul 14, 2008
    Posts:
    59
    Likes Received:
    12
    Location:
    Plymouth, Devon
    Interesting...

    I've literally got the exact same fault on my 1988 Land Rover...

    It will start and sit there idling, then decides to turn its self off, starts straight back up afterwards...

    Again, I could be driving down the road and all of a sudden, nothing, like I've turned the ignition off, but the restarts straight away...

    I'm beginning to suspect the distributor...??
     
  10. discool

    discool Well-Known Member

    Joined:
    Apr 25, 2007
    Posts:
    13,051
    Likes Received:
    1,718
    Location:
    Sector 12 in Kent, The Garden of England
    Okay, but thats not applicable to the D2 V8 is it :(
     
  11. Scotiawhiskers

    Scotiawhiskers Well-Known Member

    Joined:
    Apr 30, 2021
    Posts:
    447
    Likes Received:
    879
    Location:
    Manchester
    Otto was doing this at times, usually cutting hot. IACV was solidly crudded - new one was only £40 delivered. Also cleaned the MAF sensor - grille off the front and cleaned with rubbing alcohol o a cotton wool ball. Then plugged the 4 outlets in the back of the sensor it with cotton wool, stood it on the outlet end so the intake was facing upwards, poured rubbing alcohol in until it overflowed the sensor passage. Left it to soak through, pulled the cotton wool out of the passages, left it to dry another half hour before reinstalling. Works perfect now.
    Also check plug leads - earth one end of a probe, then put the other to the plug leads near the plug end and also at the coil boot end. Otto was still playing up a bit and I checked that way (after getting a nice jolt). We had 2 duff leads, each on a different coil, so when they tracked out it took out 2 or 4 cylinders at a time. If they track then you should see / hear the spark.
    New set of leads on Otto and he was fine.
     
    v8250 likes this.
  12. Jon Dor

    Jon Dor Well-Known Member

    Joined:
    May 1, 2017
    Posts:
    1,509
    Likes Received:
    1,302
    Location:
    Beverley, East Riding of Yorkshire
    Crankshaft sensor?
     
  13. Rayman247

    Rayman247 New Member

    Joined:
    May 9, 2022
    Posts:
    7
    Likes Received:
    3
    Location:
    Highnam, Gloucestershire
    I recently started experiencing issues with my D2 v8, when engine is cold it starts first time everytime, however when being driven and up to temp if I park up, then go back to it the engine will turn but no signs of ignition. If I leave it an hour or so to cool off it will start. I think it is my CPS unit, so ordered a replacement.

    I am working for the next few weekends so decided yesterday to drop it to my mates garage for fitting, halfway there the engine died on a dual carriageway, and refused to restart. 4 hours later the recovery truck turned up, bloody thing started again and drove it onto the back of flatbed.

    Will know in a few days if this is the longterm fix.
     
  14. JUKE179r

    JUKE179r Well-Known Member

    Joined:
    Jul 5, 2018
    Posts:
    2,612
    Likes Received:
    1,304
    Location:
    Suffolk County
    That definitely sounds like a failing crankshaft position sensor.
    Also make sure your battery connections are tight and not corroded.
     
    Last edited: May 14, 2022
    Jon Dor likes this.
< Previous Thread | Next Thread >