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  1. jonathanp

    disco 4,2 and 1 HDC !

    Yes you must use engine braking when going down hill . The best choice is Low Ratio , Diff Lock in , and first gear or second gear . Up hill is the same but second or third gear depending on the terrain . Regards Jonathan
  2. jonathanp

    could this be head gasket failure

    Good idea, When the head is off get it pressure tested for any cracks and skimmed , the valves lapped and new oil stem seals fitted .( might not need skimming if it did not get too hot and did not warp but it helps to ensure it is flat and seals properly with a new gasket . Regards Jonathan
  3. jonathanp

    altrnator light

    The voltages you have described are OK , infact very similar to mine with a new alternator . I actually get 14 Volts when the engine is at idle speed . What do you get at idle speed as the warning light should go out at this speed ? I quite sure that as engine speed increases you actually get an...
  4. jonathanp

    300tdi EDC?

    The only EDC cars I have come across are Automatics . I believe LR used the EDC system to increase the power to compensate for the losses in the Automatic Gear box . Regards Jonathan
  5. jonathanp

    could this be head gasket failure

    What you have described is wrong and should not happen . The cooling system is designed to work under pressue at 15 psi and the symptons you describe indicate there could also be an air lock in the cooling system again possibly caused by a head gasket failure . If you take the expansion tank top...
  6. jonathanp

    ABS fault

    If your car is a Discovery 1 the ABS fault code 2-4 means Recirculation pump motor locked . To check this you need to disconnect the 35 pin connector from the ABS ECU and connect a WABCO or LR diagnostic connector to the cable connector and connect pins 9 and 11 Switch the ignition on and the...
  7. jonathanp

    could this be head gasket failure

    The expansion tank beeing overpressurised and coolant boiling over or being forced out along with the high temperature mentioned earlier again points to Head gasket failure . There are test kits available to check for exhaust fumes in the coolant and for a pressure loss in the coolant system any...
  8. jonathanp

    could this be head gasket failure

    Bubbles and fumes from the expansion tank looks like a Head Gasket failure to me. Is your coolent level going down as well ?? Regards Jonathan
  9. jonathanp

    Onboard diagnostics for my 300 v8?

    Have a look at the pdf brochure on Bearmach. com for Hawkeye . The release 2 has had more applications added including the Disco 1 under upgrades 3 and 4 . Make sure it is the latest pdf you look at as there are a few websites with the old out of date info What Blink codes did you get with...
  10. jonathanp

    Coolant stays cold in Resivoir 300tdi

    I would expect the "reservoir" to be warm after a long run . It is in fact an expansion tank and is connected to the cooling system in two ways . One is by an approx 20 mm diameter hose that is on a "T" from the bottom radiator hose and the other is an approx 10 mm diameter hose which is...
  11. jonathanp

    air con

    From memory no it is not normal , you either have a problem with a switch or relay in the air con circuit or possible your engine could be overheating ? I am not sure but I think there is another thermal switch in the cooling system that switches the fans on independantly if the water gets too...
  12. jonathanp

    Hawkeye

    Thanks for the info, glad I haven't spent my 'hard earned' just yet , Regards Jonathan
  13. jonathanp

    Hawkeye

    Fair enough, but according to the latest pdf brochure available on Bearmach.com it can do ACE as of update 4, due March 2010. I am curious what are the problems with this piece of Kit as I was intending to buy it myself very shortly . I thought it would be OK as it is manufactured by Omnitech...
  14. jonathanp

    vented brake conversion for 1998 300tdi auto

    I can not remember exactly I got the parts from my local specialist several years ago . I think it was about £ 200 ish . They are all widley available check the internet and the magazines . The discs are the same size but vented and the calipers bigger and more importantly the pads are approx...
  15. jonathanp

    vented brake conversion for 1998 300tdi auto

    I did the conversion a few years ago the part numbers at that time were LH Caliper STC1267 ,RH Caliper STC1266 , Vented discs FTC902 , Caliper Bolts FTC 3375 , Fitting kit , STC 8575 , Pads SFP000260M . Please double check as part numbers change .Regards Jonathan
  16. jonathanp

    Hawkeye

    Here is latest info from Bearmach website about Hawkeye , for TD5 Disco it looks as if it does the ACE and some of the BCU ?? Email or give them a ring , Regards Jonathan Discovery Series II Diesel EMS 1998 - 2005 TD5 J1962 (BA 5071) Discovery Series II Petrol EMS 1998 - 2005 Bosch M5.2.1...
  17. jonathanp

    vented brake conversion for 1998 300tdi auto

    mrnice. Yes that is exactly what I have done on the front , the rear were left the same , you just have to make sure you get the ones to match your pipe work ie your car is a little older than mine but should be the same as mine a single pipe not two.( you can get both types of caliper )...
  18. jonathanp

    vented brake conversion for 1998 300tdi auto

    I use standard vented discs and calipers from a 110 and pads to match . The calipers and pads are bigger than the disco ones yet fit perfectly and greatly improved my braking on a Disco 1998 300 tdi ES Auto with ABS. It is an easy job , the messy bit was repacking the bearings with grease and...
  19. jonathanp

    shaunm41 & Archies ABS PROBLEM

    Hi , Just checked my blink codes after a short journey with a few start / stops . Only one code 4-14 , front left sensor wire broken or resistance too high . This is as expected , do not know what caused the other codes so now waiting for new sensor and see how it goes from there . Regards Jonathan
  20. jonathanp

    shaunm41 & Archies ABS PROBLEM

    DISCOBOY 84 Now with a computerised MOT , every testing station has a record of the failure and why and of course the Police have access to whether any vehicle has a valid MOT. Please find a cut and paste of section 3.4 of the MOT Testers Manual Information This ABS inspection...
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