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Are my injectors knackered? Experts advice please
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Leesbay
 


Member Since: 19 Dec 2011
Location: rainford
Posts: 1429

United Kingdom 2006 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3
Are my injectors knackered? Experts advice please

My 06 d3 manual has until 2 days ago been running without fault
It now has a missfire / very lumpy idle all the time hot or cold
New fuel filter fitted and injector cleaner and driven 150 miles since fault occurrd and it hasnt improved
Over 1500 rpm car drives with plenty of power no smoke etc
Maf and map sensors visually checked and cleaned with elec spray

A week ago i added a professional biocide to the tank of diesel to kill anything nasty after summer

Phil has kindly let me use his iid tool and faults shown below
Injector values taken at idle every two seconds for ref

Can the wise ones on here please let me know their thoughts as to what a fix would involve and if injectors which ones look knackered
I have not had any EML lights at all to date




















Thankyou in anticipation of hepful responses
Lee
 ....................................................................................................


If my wife ever sells my stuff for what she thinks I paid for them, you lot are gonna get some bargains! 
 
Post #18777059th Nov 2017 8:04 pm
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philm
 


Member Since: 02 Oct 2016
Location: Manchester
Posts: 217

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

Good luck with the repairs.
 Discovery 4 Landmark MY16.
IID Tool BT 
 
Post #187782310th Nov 2017 8:23 am
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sputnixb51
 


Member Since: 23 Apr 2013
Location: Morayshire
Posts: 668

Scotland 2006 Discovery 3 TDV6 SE Auto Zermatt SilverDiscovery 3

I personally would just replace No5 and give the others chance to re balance, it worked for me when I had my No2 down in the 500’s. My Gap also said it had an internal leak.
  
Post #187784810th Nov 2017 9:51 am
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Leesbay
 


Member Since: 19 Dec 2011
Location: rainford
Posts: 1429

United Kingdom 2006 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

Can anyone comment please
Car booked into injector specialist wednesday and would be grateful for any info so i dont go in totally blind
Thanks
 ....................................................................................................


If my wife ever sells my stuff for what she thinks I paid for them, you lot are gonna get some bargains! 
 
Post #187842711th Nov 2017 9:20 pm
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Leesbay
 


Member Since: 19 Dec 2011
Location: rainford
Posts: 1429

United Kingdom 2006 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

Injector specialist sorted it out today
Replaced single injector and all is well👍
 ....................................................................................................


If my wife ever sells my stuff for what she thinks I paid for them, you lot are gonna get some bargains! 
 
Post #187975215th Nov 2017 1:03 pm
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philm
 


Member Since: 02 Oct 2016
Location: Manchester
Posts: 217

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

Glad you got it sorted.
Was it injector 5.
 Discovery 4 Landmark MY16.
IID Tool BT 


Last edited by philm on 15th Nov 2017 1:08 pm. Edited 1 time in total 
Post #187975415th Nov 2017 1:07 pm
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stew 46
 


Member Since: 01 Dec 2011
Location: cornwall
Posts: 7767

England 2005 Discovery 3 TDV6 SE Manual Siberian SilverDiscovery 3

Thumbs Up just wait for the others go Whistle Rolling with laughter Thumbs Up
 -------------------------------------------------
if you cant hold on dont let go , it ill come in handy for something even if you never use it.
D3 SE 05,
110 s wagon 300 tdi SOLD
h top transit
crew cab transit
transit connect
ausa dumper, muck truck .
peljob 2.5 digger
06 L 200 crew cab 
 
Post #187975515th Nov 2017 1:07 pm
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Leesbay
 


Member Since: 19 Dec 2011
Location: rainford
Posts: 1429

United Kingdom 2006 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

Todays further twist
After injectors replaced the rough idle came back after 5 mins
So injectors removed and old ones back in.
All tests that have been done show injector pressures all over the place but injectors after testing say they are fine along with no fue contamination, fuel pumps all ok, wiring ok, rails ok, new fuel filter ok etc etc

Now diagnosed as maybe a failing dual mass fly wheel causing the rough idle? I hadnt considered this would ever cause such rough running, i hope so as this is best part of a grand and unlike the injectors that have been removed and not charged for the clutch isnt a amall job (5.5hrs labour)

We shall see if it sorts the problem out when its back tomorrow, if not its getting chopped in for an 09 Merc GL i have been to see today. Cant have a car that is starting to eat into my pockets big time and spoil the fun of ownership as much as i love the brand
 ....................................................................................................


If my wife ever sells my stuff for what she thinks I paid for them, you lot are gonna get some bargains! 
 
Post #188027616th Nov 2017 8:08 pm
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Disco_Mikey
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Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 16179

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Seen a DMF begin to disintegrate at 240k miles. Original clutch too

Gave a vibration at idle, and when revved. However, all injector values were fine

Does the DMF rattle when the clutch is depressed slightly?
 MMP Land Rover - Land Rover + Range Rover Specialist
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Unit 9, 42 Baird Avenue
Dundee
DD2 3TN

Alive Tuning Authorised Dealer - Performance Tuning + EGR Delete

Servicing + Repairs / Fault Diagnostics / EU3+EU4 EGR Blanking / Timing Belt + Oil Pump Replacement

Software Updates+Upgrades:
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Post #188027716th Nov 2017 8:11 pm
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Disco_Mikey
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Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 16179

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3



FWIW, this car had a horrendous lack of power, very slow to rev etc
A replacement set of injectors cured it Thumbs Up
 MMP Land Rover - Land Rover + Range Rover Specialist
www.Facebook.com/MMPLandRover

Unit 9, 42 Baird Avenue
Dundee
DD2 3TN

Alive Tuning Authorised Dealer - Performance Tuning + EGR Delete

Servicing + Repairs / Fault Diagnostics / EU3+EU4 EGR Blanking / Timing Belt + Oil Pump Replacement

Software Updates+Upgrades:
4x4 Info Enable / Sat Nav OTM / 3 Flash indicators / D4 Timed Climate Retrofit

My D3 Build Thread 
 
Post #188027816th Nov 2017 8:14 pm
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Leesbay
 


Member Since: 19 Dec 2011
Location: rainford
Posts: 1429

United Kingdom 2006 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

Thanks DM
No noises or change of revs on depression of clutch
At idle it runs very tappety and sounds like a misfire
Gently increasing revs from idle to 1500 rpm is very lumpy and it hesitates going up and nearly stalls on the way back with a shudder at bottom revs
Driving wise its fine and goes pretty well through the gears but the missfire symptom can be felt slightly when free revving no drop off in performance in normal driving

Clutch doesnt slip or smell
Mechanic says he has exhausted all tests (injector specialist ) and says new injectors just moved the figures around the cylinders when replaced? And went on to say that he thinks the DMF inbalance is causing a missfuel of injectors?
Ive read a few posts mentioning the DMf causing bad idle but seems curious as upon start up after an evenings rest it kicks out plenty of gery/blue smoke until cylinders clear then it runs clean, just idles badly
Its an 06 with 108k and overly serviced so not looking at spending anything more on it as the current bill with investigation and clutch/dmf is likey to be a third of the cars value so far😳
 ....................................................................................................


If my wife ever sells my stuff for what she thinks I paid for them, you lot are gonna get some bargains! 
 
Post #188027916th Nov 2017 8:29 pm
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Disco_Mikey
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Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 16179

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

The DMF I had did not affect injector comps...

Did you only have 1 injector replaced, or more than 1?
 MMP Land Rover - Land Rover + Range Rover Specialist
www.Facebook.com/MMPLandRover

Unit 9, 42 Baird Avenue
Dundee
DD2 3TN

Alive Tuning Authorised Dealer - Performance Tuning + EGR Delete

Servicing + Repairs / Fault Diagnostics / EU3+EU4 EGR Blanking / Timing Belt + Oil Pump Replacement

Software Updates+Upgrades:
4x4 Info Enable / Sat Nav OTM / 3 Flash indicators / D4 Timed Climate Retrofit

My D3 Build Thread 
 
Post #188033916th Nov 2017 9:58 pm
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Leesbay
 


Member Since: 19 Dec 2011
Location: rainford
Posts: 1429

United Kingdom 2006 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

1 to begin with i believe DM, which moved the problem to another cylinder
He then moved the new one around swapping with others
Mech said he then tested the others but all found to be ok?
 ....................................................................................................


If my wife ever sells my stuff for what she thinks I paid for them, you lot are gonna get some bargains! 
 
Post #188035716th Nov 2017 10:58 pm
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Disco_Mikey
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Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 16179

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Thats the issue

Ideally, the PCM needs around 200 miles to fully adapt to its new injector, then recheck the readings again...

And then replace the 2nd injector

Then 200 miles again

And then the 3rd injector

And so on... But hopefully not Thumbs Up
 MMP Land Rover - Land Rover + Range Rover Specialist
www.Facebook.com/MMPLandRover

Unit 9, 42 Baird Avenue
Dundee
DD2 3TN

Alive Tuning Authorised Dealer - Performance Tuning + EGR Delete

Servicing + Repairs / Fault Diagnostics / EU3+EU4 EGR Blanking / Timing Belt + Oil Pump Replacement

Software Updates+Upgrades:
4x4 Info Enable / Sat Nav OTM / 3 Flash indicators / D4 Timed Climate Retrofit

My D3 Build Thread 
 
Post #188043617th Nov 2017 10:10 am
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Leesbay
 


Member Since: 19 Dec 2011
Location: rainford
Posts: 1429

United Kingdom 2006 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

Thanks again DM
Awaiting phone call from mech and will relay this to him👍
 ....................................................................................................


If my wife ever sells my stuff for what she thinks I paid for them, you lot are gonna get some bargains! 
 
Post #188044617th Nov 2017 10:40 am
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