AnonCh4rl1
Member Since: 07 Sep 2015
Location: Shropshire
Posts: 3
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| Disco 3 Won't start, fuel flowing from supply and return |
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I've got a Disco 3 that won't start, it's had a recon engine, it cranks over all day but no smoke and no fuel is coming out of the injectors,
Things we've done;
had engine out again, checked timing, crank and cam sensors and changed High Pressure fuel pump,
Replaced fuel filter and checked electronic signal to injectors - all good. Also changed the pressure sensor on the fuel rail small middle fuel rail (2.7 TDv6).
The only fault codes are HPFP related - pressure irrattic, but bear in mind its had another used HPFP.
I get good flow from the Low pressure tank pump, but today noticed when both flow and return are disconnected fuel flows through both at the same rate, is that normal?
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 7th Sep 2015 9:12 pm |
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Timothy1
Member Since: 06 Dec 2016
Location: Tanzania
Posts: 42
  
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| Re: Disco 3 Won't start, fuel flowing from supply and return |
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AnonCh4rl1 wrote:I've got a Disco 3 that won't start, it's had a recon engine, it cranks over all day but no smoke and no fuel is coming out of the injectors,
Things we've done;
had engine out again, checked timing, crank and cam sensors and changed High Pressure fuel pump,
Replaced fuel filter and checked electronic signal to injectors - all good. Also changed the pressure sensor on the fuel rail small middle fuel rail (2.7 TDv6).
The only fault codes are HPFP related - pressure irrattic, but bear in mind its had another used HPFP.
I get good flow from the Low pressure tank pump, but today noticed when both flow and return are disconnected fuel flows through both at the same rate, is that normal?
SAME PROBLEM PLEASE HELP!!! Euro Parts Arusha
Tanzania
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| 16th Mar 2018 4:32 am |
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Flack
Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6230
 
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Have you tried doing a fuel lift pump procedure with your diag tool?.
Flack 
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| 16th Mar 2018 9:39 am |
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Timothy1
Member Since: 06 Dec 2016
Location: Tanzania
Posts: 42
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Hey flack haven't tried that yet,how's that done?
Plugged The diag machine and the fault was
1 "engine system shut down circuit open"
2 "break light switch"
So went ahead and Have changed the
1.high pressure pump
2.New Intank pump
3.New fuel rail pressure sensor
4.new brake light switch
5.checked all the nozzles fine
And now the engine system shut down fault gone.
I've geot a new fault now
1.fuel pressure regulator low fuel pressure (new fault)
2.brake light switch still comes up although fitted a new switch Euro Parts Arusha
Tanzania
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| 16th Mar 2018 10:11 am |
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AnonCh4rl1
Member Since: 07 Sep 2015
Location: Shropshire
Posts: 3
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with regards to my original post, it turned out to be failed injectors, put a set in and it fired right up, we had systemically tested everything from tank upwards though.
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| 17th Mar 2018 2:53 pm |
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AnonCh4rl1
Member Since: 07 Sep 2015
Location: Shropshire
Posts: 3
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Timothy1 wrote:Hey flack haven't tried that yet,how's that done?
Plugged The diag machine and the fault was
1 "engine system shut down circuit open"
2 "break light switch"
So went ahead and Have changed the
1.high pressure pump
2.New Intank pump
3.New fuel rail pressure sensor
4.new brake light switch
5.checked all the nozzles fine
And now the engine system shut down fault gone.
I've geot a new fault now
1.fuel pressure regulator low fuel pressure (new fault)
2.brake light switch still comes up although fitted a new switch
I would check for diesel leaks on high pressure side first,
It might be worth looking at the ignition switch, or around that area, Does the immobilizer light go out?
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| 17th Mar 2018 3:01 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10359
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they do take ages to get them started.
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| 17th Mar 2018 4:32 pm |
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Timothy1
Member Since: 06 Dec 2016
Location: Tanzania
Posts: 42
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AnonCh4rl1 wrote:Timothy1 wrote:Hey flack haven't tried that yet,how's that done?
Plugged The diag machine and the fault was
1 "engine system shut down circuit open"
2 "break light switch"
So went ahead and Have changed the
1.high pressure pump
2.New Intank pump
3.New fuel rail pressure sensor
4.new brake light switch
5.checked all the nozzles fine
And now the engine system shut down fault gone.
I've geot a new fault now
1.fuel pressure regulator low fuel pressure (new fault)
2.brake light switch still comes up although fitted a new switch
I would check for diesel leaks on high pressure side first,
It might be worth looking at the ignition switch, or around that area, Does the immobilizer light go out?
Anon,
1.no diesel leaks on high pressure at all,although the common rails seem empty as I tried to disconnect the fuel supply line on injector number 1 while cranking to see if I'll get any pressure leaking but nothing
2.What should I be looking for at the ignition switch
3.where is the immobilizer light!? Is it suppose to be going out!? Euro Parts Arusha
Tanzania
Last edited by Timothy1 on 17th Mar 2018 7:42 pm. Edited 1 time in total
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| 17th Mar 2018 7:34 pm |
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Timothy1
Member Since: 06 Dec 2016
Location: Tanzania
Posts: 42
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Pete K wrote:they do take ages to get them started.
Hey Pete,
How long we roughly talking here till I get lucky starting the engine!?
Been cranking the engine till the battery died now gotta charge it overnight and keep going again tomorrow.
I have to be careful with the starter motor too otherwise it will burn. Euro Parts Arusha
Tanzania
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| 17th Mar 2018 7:40 pm |
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Timothy1
Member Since: 06 Dec 2016
Location: Tanzania
Posts: 42
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Hey lads
So the engine fired up once for like 15 second with lots smoke at the back and a bit of misfire and the went off and won't start again after lots cranking.
The diag tool shows NO single fuel faults, only brake light switch fault keeps coming.
Help please!
Now the
P251D-00:PTO ENGINE SHUTDOWN CIRCUIT/OPEN
Just showed up Euro Parts Arusha
Tanzania
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| 18th Mar 2018 3:23 pm |
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Tedwheelup
Member Since: 16 Mar 2018
Location: Bristol
Posts: 24
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Hi
I am new to the forum as have just bought 2 disco 3's (both 2005 tdv6 hse autos)
one good one bad!
The bad one I bought with a knocking engine (low oil killed it)
Problem is now have fully rebuilt engine and ready for first start,
I have the iid tool and this shows no engine ecu faults but it will not start,
We have about 7 psi on the low pressure and good fuel flow on the return,
But hi pressure side only getting about 2000 kpa when cranking over
We opened pipe from top of hp pump and when cranking only get fuel for about 2-3 seconds then it stops flowing?
if you do 3 seconds cranking then quick off then crank again you get flow
it seems to me to be pointing to the hp pump in some way but it ran fine (except very noisy  before the rebuild.
Any advice help would be great
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| 30th Mar 2018 11:47 pm |
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Timothy1
Member Since: 06 Dec 2016
Location: Tanzania
Posts: 42
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Hi Ted
Try another hpfp to see of that's where the problem is,just go with the second hand one before spending loads,those hpfp seems to be the problem most of the time and to your case sounds like It. Euro Parts Arusha
Tanzania
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| 31st Mar 2018 3:40 am |
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Tedwheelup
Member Since: 16 Mar 2018
Location: Bristol
Posts: 24
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Hi Timothy
Thanks for the advice.
I have 2 disco 3’s and checked the good one today by disconnecting the electronics to the
Injectors and cranked over got over 40000 Kpa just by cranking over showing on iidtool.
Confirms my suspicions.
I have ordered a pump hopefully fit it Wednesday or Thursday when it’s arrives 
Seems a good forum here.
Off topic but I am used to working on my defender 300td! Does not even need any electronics to run if you remove the plunger from the stop solenoid.
I once drove it for 3 consecutive days with no power as alternator died.
Bit concerned about my upcoming trip to Morocco later this year in the D3 
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| 1st Apr 2018 9:16 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10359
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these disco's like a battery in tip top condition
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| 2nd Apr 2018 9:21 am |
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Timothy1
Member Since: 06 Dec 2016
Location: Tanzania
Posts: 42
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Tedwheelup wrote:Hi Timothy
Thanks for the advice.
I have 2 disco 3’s and checked the good one today by disconnecting the electronics to the
Injectors and cranked over got over 40000 Kpa just by cranking over showing on iidtool.
Confirms my suspicions.
I have ordered a pump hopefully fit it Wednesday or Thursday when it’s arrives
Seems a good forum here.
Off topic but I am used to working on my defender 300td! Does not even need any electronics to run if you remove the plunger from the stop solenoid.
I once drove it for 3 consecutive days with no power as alternator died.
Bit concerned about my upcoming trip to Morocco later this year in the D3
Hi Ted
Was waiting for your feedback,..any progress!?
Pump arrived and fitted yet!? Euro Parts Arusha
Tanzania
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| 6th Apr 2018 8:10 pm |
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