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!

Freelander 1 EGR Coolant Hose

Discussion in 'Land Rover Freelander' started by andyfreelandy, Apr 12, 2017.

< Previous Thread | Next Thread >
  1. andyfreelandy

    andyfreelandy Well-Known Member

    Joined:
    Jul 29, 2010
    Posts:
    3,197
    Likes Received:
    1,172
    Location:
    Devon
    So - latest drama, TD4 blew a hole in the EGR coolant hose when 100m from home ! I have an EGR bypass and a kindly AA man had enough pipe to make a temp fix - however, can I bypass the coolant pipes as I don't use the EGR anyway - that would simplify the pipework, but is the coolant through the EGR doing anything else useful??

    Also, after the temp repair, the car ran rough and sounded like it was in too high a gear with mechanical vibration through the car for about 20 miles, it then cleared and now seems fine - WTF was this all about??

    Is it because the coolant got lost from the auto box cooler, the IRD cooler and all was not well with the oil temperature?? Has anyone else had this problem, basically that loosing coolant and a mild overheat has affected what appears to the transmission??

    Root cause of failure seems to be a slight diesel leak from the turbo pipes which has rotted out the coolant pipe - it has gone all soft and stretchy - others beware !
     
  2. andyfreelandy

    andyfreelandy Well-Known Member

    Joined:
    Jul 29, 2010
    Posts:
    3,197
    Likes Received:
    1,172
    Location:
    Devon
    and the next joke !!

    Land rover only supply the 9 inch rubber pipe on the end of all the metal coolant rail pipes for £150 plus VAT !
    Back to the drawing board and will re-engineer sommat out of straight pipes and elbows.
     
    GrumpyGel likes this.
  3. guineafowl21

    guineafowl21 Well-Known Member

    Joined:
    Feb 24, 2015
    Posts:
    2,833
    Likes Received:
    1,856
    Location:
    Inverness
    Apparently, the fuelling strategy for the auto Td4 version can result in more NOx emissions, so the cooler is there to reduce that. If your EGR is blanked you should be able to blank the cooler. I did on my Td5 a long time ago.

    Perhaps an air bubble in the cooling system affected temperature sensing, and altered the fuelling? If not, your auto theories sound plausible.

    I think you mean an oil leak from the turbo pipes.
     
  4. Alibro

    Alibro Well-Known Member

    Joined:
    Jan 5, 2015
    Posts:
    5,916
    Likes Received:
    1,735
    Location:
    Northern Ireland
    I didn't realise the EGR was cooled. I fitted a bypass too and don't remember any coolant hoses attached.
    Any photo's of the offending item?
     
  5. Nodge68

    Nodge68 Well-Known Member

    Joined:
    Nov 15, 2011
    Posts:
    25,502
    Likes Received:
    6,723
    Location:
    Near Newquay
    Only the auto has the EG cooler. It's mounted on the link pipe between the exhaust manifold take off and the flexible section where it enters the valve body. It's quite common for the recirculation exhaust gas to be cooled these days.
     
    Alibro likes this.
  6. andyfreelandy

    andyfreelandy Well-Known Member

    Joined:
    Jul 29, 2010
    Posts:
    3,197
    Likes Received:
    1,172
    Location:
    Devon
    upload_2017-4-14_9-44-30.png
    Screen shot - EGR Cooler is the block connected to hoses 5 & 6. 6 is teh one that burst on mine. I had to send this .pdf to Land Rover main dealer as they hadn't got a picture !!! Arghhhhhhhhhhh upload_2017-4-14_9-44-30.png
     
  7. andyfreelandy

    andyfreelandy Well-Known Member

    Joined:
    Jul 29, 2010
    Posts:
    3,197
    Likes Received:
    1,172
    Location:
    Devon
    Whoops - too many clicks !
     
  8. guineafowl21

    guineafowl21 Well-Known Member

    Joined:
    Feb 24, 2015
    Posts:
    2,833
    Likes Received:
    1,856
    Location:
    Inverness
    Blank it off - if your EGR is disabled it's pointless cooling the exhaust gas that isn't being recirculated.
     
  9. andyfreelandy

    andyfreelandy Well-Known Member

    Joined:
    Jul 29, 2010
    Posts:
    3,197
    Likes Received:
    1,172
    Location:
    Devon
    Indeed - only problem will be that the two pipes outlets (metal) to be bridged are pointing in two different directions, maybe make up something out of copper pipe with joints to avoid kinked hoses. Thanks
     
  10. GrumpyGel

    GrumpyGel Well-Known Member Full Member

    Joined:
    Oct 31, 2013
    Posts:
    19,344
    Likes Received:
    13,895
    Location:
    Christchurch, New Zealand
    I haven't checked the diagrams - but I seem to remember the heater matrix and IRD cooler are in "parallel" - so you could presumably just blank 1 off (although might it constrict flow?). Why I'm rambling is - is the EGR cooler in parallel with something so could just be blanked off at the 2 outlets?
     
  11. andyfreelandy

    andyfreelandy Well-Known Member

    Joined:
    Jul 29, 2010
    Posts:
    3,197
    Likes Received:
    1,172
    Location:
    Devon
    Good thinking, it looks like it might be, the c & d on the diagram are (I think) the heater connections and so the 2 metal rails are parallel feeds.

    That would be good and remove a failure point. Thanks for the idea, it did cross my mind at the roadside 'to get me home' but didn't think on it further.
     
  12. andyfreelandy

    andyfreelandy Well-Known Member

    Joined:
    Jul 29, 2010
    Posts:
    3,197
    Likes Received:
    1,172
    Location:
    Devon
    So - C & D are to the internal heater and so the egr cooler is indeed in parallel with the heater. Before I blank each pipe to the EGR with a cap, will there be a problem with the EGR not being cooled even though the EGR blanking is fitted?? I'm thinking hotter gas hitting the blanking kit............
     
  13. Nodge68

    Nodge68 Well-Known Member

    Joined:
    Nov 15, 2011
    Posts:
    25,502
    Likes Received:
    6,723
    Location:
    Near Newquay
    There's no exhaust gas hitting the EGR blanking plate, as there's no exhaust gas flowing that way. So you can blank the water pipes off without a problem.
     
  14. andyfreelandy

    andyfreelandy Well-Known Member

    Joined:
    Jul 29, 2010
    Posts:
    3,197
    Likes Received:
    1,172
    Location:
    Devon
    I thought the exhaust gas came up via the cooler and into the old EGR - so the blank on the bypass will surely receive exhaust gas hitting it!?!?
    BUT - if the auto is the only one with the cooler, then many have fitted bypass to manual - so I'll give it a go.

    Please can you explain what I have missed if I am wrong (above). Thanks
     
  15. Nodge68

    Nodge68 Well-Known Member

    Joined:
    Nov 15, 2011
    Posts:
    25,502
    Likes Received:
    6,723
    Location:
    Near Newquay
    If the exhaust gas transfer pipe is plugged at the EGR valve. Then no gas will flow to the valve blanking plate. The gas in the pipe will remain stagnant and not get that hot.
     
  16. andyfreelandy

    andyfreelandy Well-Known Member

    Joined:
    Jul 29, 2010
    Posts:
    3,197
    Likes Received:
    1,172
    Location:
    Devon
    Got it - NO FLOW !! Thanks.
    Have found silicon pipe caps for the job, held with jubilee clip. Both metal coolant rails will be capped at a stem on each.
     
< Previous Thread | Next Thread >