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In desperate need of some advice, rough idle and smoking.
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harbur
 


Member Since: 06 Aug 2019
Location: Isham
Posts: 25

United Kingdom 
In desperate need of some advice, rough idle and smoking.

Hey All,

I’m in some real need of some help. My disco 3 2.7TDV6 has been playing up. Just over a week ago, the idle suddenly became very rough and since has remained that way. Once you’re moving, it drives fine, still pulls and feels good. However, as soon as you approach a stop or lights and regs drop down, it’s really rough. Lots of white/blue smoke that stinks (Unburnt diesel?) on idle too, plus in reverse it’s the same, feels like it’s about to stall.

Took it to a local garage, they plugged it in and did a read of the injectors, said one was massively out of the parameters, 4 weren’t great and 1 was fine. Finding out these cost £259 ea. Plus fitting, I went with the thought process that I shall replace the 1 terrible one and see if that improves. The mechanic said he’d never encountered an injector that was so difficult to get out, he’s a regular on these cars/engines and said he was very surprised. After that 1 was replaced, there was no improvement. With the only difference being that the other 4 already not great ones, seem to be worse now. The one that he changed was the right rear one of you’re standing at the front of the car looking at the engine, the next worse is now the rear left. Coincidentally the two worst to change I hear.

So, my dilemma is this. Keep throwing money on injectors and replace them all which is likely, and hope this fixes it. Or... sell the car for what I can now and walk away.

A little history, this car bought from a mechanic 2 months ago. Said it was a great motor, was his own personal one and everything done. I’m a novice and took him at his word, never again! I bought the car for 3k, a good price at that. I’ve had to spend nearly 2k so far on issues. Gearbox flush as there was a judder. Prop shaft changed as barley in place any more. All four tires were terrible, at least two nails in each so replaced with a whole new set. Had a service. New brakes all round.1 injector so far and an air bag, front off side.

Mileage is 151K.

I absolutely adore this car, perfect for me and my family and really is top of our budget so can’t afford to keep throwing money at it if after the injectors are all replaced, the engine is knackered anyway.

Would really appreciate any help or advice, I feel I’ve been led up the garden path and just don’t know what to do anymore.

Thank you!

Dan
  
Post #20901216th Oct 2019 7:16 pm
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Gareth
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Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26698

United Kingdom 

I’m afraid these cars are expensive to diagnose and fix if you can’t do it yourself. Tyres and gearbox service are all part of the running costs of the car.

Before You throw any more money at it, I’d be making sure the engine is physically healthy. Compression check would be the first port of call. If there are any signs that the engine has had major work done, like missing clips, spanner marks on nuts etc, then I’d be suspicious of its history.

If the car has been misfuelled it could have ruined the diesel pumps, and the injectors. If you replace just the injectors then you run the risk of knackering them because the pumps are knackered and sending swarf and particles down the pipe to the injectors.

Sorry I can’t be more positive. Hope you get it fixed.
  
Post #20901426th Oct 2019 8:27 pm
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Hardware
 


Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 12694

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

bit more positive ... even if you do end up spending 4K on it , what car are you going to get for that money that does what the D3 does ?

you need to find an indie who loves the breed.
  
Post #20901456th Oct 2019 8:32 pm
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aja4x4
 


Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459

United Kingdom 2005 Discovery 3 TDV6 SE Auto Zambezi SilverDiscovery 3

Have they coded the injector right? as its not straight forward on these engines

Injector 1 is in cylinder 1
Injector 2 is in cylinder 4
Injector 3 is in cylinder 2
Injector 4 is in cylinder 5
Injector 5 is in cylinder 3
Injector 6 is in cylinder 6

I would also blank off your egr valves and check for air leaks
  
Post #20901466th Oct 2019 8:49 pm
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harbur
 


Member Since: 06 Aug 2019
Location: Isham
Posts: 25

United Kingdom 

Gareth wrote:
I’m afraid these cars are expensive to diagnose and fix if you can’t do it yourself. Tyres and gearbox service are all part of the running costs of the car.

Before You throw any more money at it, I’d be making sure the engine is physically healthy. Compression check would be the first port of call. If there are any signs that the engine has had major work done, like missing clips, spanner marks on nuts etc, then I’d be suspicious of its history.

If the car has been misfuelled it could have ruined the diesel pumps, and the injectors. If you replace just the injectors then you run the risk of knackering them because the pumps are knackered and sending swarf and particles down the pipe to the injectors.

Sorry I can’t be more positive. Hope you get it fixed.


No worries at all, thank you for your reply. How easy is it to get a compression check done, the mechanic who's working on it mentioned that it wasn't necessarily straight forward, but everything after that went over my head. I'm more than happy to get everything checked that I need to in order to prevent throwing good money after bad.
  
Post #209425622nd Oct 2019 9:22 am
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harbur
 


Member Since: 06 Aug 2019
Location: Isham
Posts: 25

United Kingdom 

Hardware wrote:
bit more positive ... even if you do end up spending 4K on it , what car are you going to get for that money that does what the D3 does ?

you need to find an indie who loves the breed.


So true! That's my thinking now. I love the car, so if I do end up spending 7-8K on it in total, at least I have a car I love , that's mega capable, and will have a lot of new parts on it lol.

Cheers!
  
Post #209425722nd Oct 2019 9:24 am
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harbur
 


Member Since: 06 Aug 2019
Location: Isham
Posts: 25

United Kingdom 

aja4x4 wrote:
Have they coded the injector right? as its not straight forward on these engines

Injector 1 is in cylinder 1
Injector 2 is in cylinder 4
Injector 3 is in cylinder 2
Injector 4 is in cylinder 5
Injector 5 is in cylinder 3
Injector 6 is in cylinder 6

I would also blank off your egr valves and check for air leaks


Cheers for this! I'll get it checked, thank you.
  
Post #209425822nd Oct 2019 9:24 am
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Bardley
 


Member Since: 02 May 2018
Location: Hertfordshire
Posts: 439

United Kingdom 2011 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Is your local garage just that, a local garage? I would suggest a good independent LR specialist is what you need, and someone that knows the engine and it's foibles. You may well save some labour costs involved too, as these guys tend to know where to go to straight away, and will know what path to take in the first instance.
 2011 MY D4 HSE
Previously 2001 D2 TD5, 1996 D1 300Tdi, 1985 90 2.2 petrol.
Bikes! KTM, BMW, British, Classics and others.
 
 
Post #209425922nd Oct 2019 9:31 am
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Stevepd
 


Member Since: 06 Mar 2018
Location: Wiltshire
Posts: 391

United Kingdom 

If you love it and it’s suits your family needs then invest in it. What makes you think the engine is knackered?. Put a post up for recommendations of an indie near you and use them. Less stress and a clear conscience that’s it’s going to get done properly. Look after the car and it will look after you. Thumbs Up
 visiting from www.rrsport.co.uk  
Post #209427022nd Oct 2019 10:19 am
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harbur
 


Member Since: 06 Aug 2019
Location: Isham
Posts: 25

United Kingdom 

Bardley wrote:
Is your local garage just that, a local garage? I would suggest a good independent LR specialist is what you need, and someone that knows the engine and it's foibles. You may well save some labour costs involved too, as these guys tend to know where to go to straight away, and will know what path to take in the first instance.


I'm quite lucky in that sense, my local is actually a parts specialist (jgs4x4) and they know Landy's pretty well. The chap that carries out the work is a friend of the owners who knows the cars very well too, so in good hands.

Though, I'll look for other specialists around too, as always good to ahem a backup and get a second opinion etc.

Thanks for the advice! Love this forum
  
Post #209452223rd Oct 2019 8:35 am
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harbur
 


Member Since: 06 Aug 2019
Location: Isham
Posts: 25

United Kingdom 

Stevepd wrote:
If you love it and it’s suits your family needs then invest in it. What makes you think the engine is knackered?. Put a post up for recommendations of an indie near you and use them. Less stress and a clear conscience that’s it’s going to get done properly. Look after the car and it will look after you. Thumbs Up


You're absolutely right! Smile Cheers
  
Post #209452323rd Oct 2019 8:36 am
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harbur
 


Member Since: 06 Aug 2019
Location: Isham
Posts: 25

United Kingdom 

Changed the injectors today, bit the bullet and got them done. Sadly, the issue still persists!! What to try next? Mechanic mentioned a fuel pump would be the next port of call. Does this sound right?

Cheers
  
Post #209523226th Oct 2019 2:42 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

2nd hand, recon or new injectors?
  
Post #209523326th Oct 2019 2:47 pm
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harbur
 


Member Since: 06 Aug 2019
Location: Isham
Posts: 25

United Kingdom 

New ones
  
Post #209523426th Oct 2019 2:51 pm
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highlands
 


Member Since: 11 Jan 2010
Location: NW Highlands
Posts: 5095

Ukraine 2005 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Has the fuel filter been replaced with a genuine one?
The very first thing I'd do with any fuelling problem is replace the filter.
 Black 05 TDV6 HSE Auto
Grey 05 TDV6 HSE Auto (Gone)
54 TDV6 SE Man (killed by me Sad
 
Post #209526226th Oct 2019 4:37 pm
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