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Won't start after inlet manifold replacement
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McZuk
 


Member Since: 11 Mar 2020
Location: Oltedal
Posts: 16

Norway 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4
Won't start after inlet manifold replacement

Just changed the inlet manifolds on my 2010 3.0 D4. Now it won't start. It cranks but won't start. The battery voltage low, start motor warning comes up after a crank or 2, and I have a Maf sensor p010d error. Is that enough to make it not start? I have bled the diesel vent on top of the engine. How much pressure should there be there? Diesel runs out, but doesn't shoot out. Is that how it should be?
  
Post #224774922nd Aug 2021 9:32 am
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6224

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

Maf sensor error should not stop it from starting, you need to bleed the top valve with ignition on, then after 30 seconds repeat the ignition cycle, it should spurt fuel out with ignition on.

Check all you connections, di youi have the battery and looms disconnected . You need to boost the battery if its to low it wont start.

Flack Thumbs Up
  
Post #224775422nd Aug 2021 10:25 am
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McZuk
 


Member Since: 11 Mar 2020
Location: Oltedal
Posts: 16

Norway 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

All connections are ok, the battery was disconnected while the inlet manifolds were replaced. It's been on charge since yesterday after I tried to start it. Low battery warning won't go away even with charger on. . .
With ignition on diesel first bubbles a centimeter or two up from the vent. If I bleed more it just pipples until the ignition cycle is started again.
  
Post #224776422nd Aug 2021 11:29 am
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8043

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

There should not be any bubbles when bleeding just a steady consistent flow.
Try another fully charged battery, a battery should be capable of cranking the engine for 2 to 3 minutes not (continuous) before giving up.
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #224776722nd Aug 2021 12:10 pm
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Hardware
 


Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 12676

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Sumatra BlackDiscovery 4

McZuk wrote:
Low battery warning won't go away even with charger on ...


Assuming charger is beefy enough for the job, check earth straps.
 .


Dean
====================================

2011 D4 XS - OBD port protection, RLD spare wheel protector, All LED interiors lights, Timed Climate enabled, iiD tool paired.
2011 D4 Landmark - Stolen from same dealer before I paid for it
2011 D4 GS - Stolen whilst at dealer Sad ... All LED interiors lights, DRLs, Spare Wheel protector.
1996 300Tdi - Eaten by tin worms 
 
Post #224776822nd Aug 2021 12:15 pm
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McZuk
 


Member Since: 11 Mar 2020
Location: Oltedal
Posts: 16

Norway 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

M3DPO wrote:
There should not be any bubbles when bleeding just a steady consistent flow.
Try another fully charged battery, a battery should be capable of cranking the engine for 2 to 3 minutes not (continuous) before giving up.


No bubbles, it will squirt diesel a centimeter or two, and slowly dies down to nothing. If I turn it completely off and then on again it does the same. Seems like there is no air in the line. I don't see any leaks anywhere either.

Battery is about 2 years old, maybe I should try charging it while not connected to the vehicle first? Charger is old, but has never been a problem before. But the disco has more electronics than an other vehicle I have had.
  
Post #224777622nd Aug 2021 1:39 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20713

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

It will take some time to replenish the fuel rails and generate enough pressure to start

Usually around 20 seconds or so if only 1 manifold has been done
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #224777822nd Aug 2021 2:17 pm
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McZuk
 


Member Since: 11 Mar 2020
Location: Oltedal
Posts: 16

Norway 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

It seems as I have good pressure with the ignition on but after I try to start it there isn't much pressure. I guess I should go over the unions on the diesel piping.
  
Post #224781922nd Aug 2021 7:39 pm
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Weyboat
 


Member Since: 13 Apr 2018
Location: Weymouth
Posts: 261

England 2015 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4

Change the fuel filter, Maybe?
 Gone 2016 Landmark D4
Current 2015 HSE D4 - AKA - 'Gandalf the Grey' 
 
Post #224782522nd Aug 2021 8:25 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8043

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

McZuk wrote:
It seems as I have good pressure with the ignition on but after I try to start it there isn't much pressure. I guess I should go over the unions on the diesel piping.


This could be caused by a weak battery, starter is drawing all the battery power!
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #224785123rd Aug 2021 6:30 am
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McZuk
 


Member Since: 11 Mar 2020
Location: Oltedal
Posts: 16

Norway 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Changed the fuel filter and made sensor. Also went over all connections, both electric and diesel lines.
Bled the diesel line again, but still won't start. I checked the live values on ny iid tool and am only getting 600kpi fuel pressure.
I still have the same problem as before with bleeding. Very good (I think) initial pressure, but it dies down to a trickle.
Going to try a different battery now. Hopefully it will work.
  
Post #224828825th Aug 2021 6:15 pm
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McZuk
 


Member Since: 11 Mar 2020
Location: Oltedal
Posts: 16

Norway 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

And no codes for low fuel pressure or anything engine related.
Only codes are for rear lights ( P O replaced with newer style) and passenger door lock.
  
Post #224829125th Aug 2021 6:28 pm
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DiscoJeffster
 


Member Since: 27 Feb 2016
Location: Perth
Posts: 204

Australia 2010 Discovery 4 3.0 TDV6 HSE Auto Nara BronzeDiscovery 4

Weyboat wrote:
Change the fuel filter, Maybe?


It ran before with the same fuel filter before being pulled apart so it's not going to be that.

How clean were you with the entire process? No chance you got and dirt into a fuel line that made its way into the HPFP?

Mine did take a little time to start after I did my manifold, but nothing unexpected. As suggested, put the battery on charge else, best check the codes to see what is erroring.
  
Post #224857227th Aug 2021 9:28 am
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McZuk
 


Member Since: 11 Mar 2020
Location: Oltedal
Posts: 16

Norway 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Fuel filter has been changed, as it was almost time anyway.

I have checked and have no codes, but just can't build pressure in the rail. I only get 640kpa, and need 30000+ to start.

I did get a tip that it is most likely air or possibly the valve on the high pressure pump that is not opening. They said to spray silicon spray in the throttle body and try to start it. When it then fires up the valve should open and pressure should build up.
Anyone with other ideas on how to get that valve to open?
  
Post #224857827th Aug 2021 10:19 am
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Knockinroe
 


Member Since: 23 Mar 2014
Location: Kenilworth
Posts: 64

England 2012 Discovery 4 3.0 SDV6 HSE Auto Nara BronzeDiscovery 4

Hi mate.... how did this turn out? You get the machine running again?

My 2012 D4 RH inlet manifold started leaking and I was tempted it do it myself... until I saw this post!
  
Post #229260722nd May 2022 10:39 am
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