TD5 lack of power under load.

neilly · Sep 14, 2017

Disco_2 said:
Wow not cheap then, that's my best hope to see if a local mechanic has one... would other diagnostic tools work?

A mechanic may not have one that can be plugged iin and used to record the data while it is driving, which is the best thing. I do not know if other diagnostic record live data for reviewing later. I only have the nanocom.

Cheers

Disco_2 · Sep 14, 2017

neilly said:
A mechanic may not have one that can be plugged iin and used to record the data while it is driving, which is the best thing. I do not know if other diagnostic record live data for reviewing later. I only have the nanocom.

Cheers

Ok, thankyou for your help, a nanocom is my best option as I've checked every area I can relate to and can't find anything

neilly · Sep 14, 2017

Disco_2 said:
Ok, thankyou for your help, a nanocom is my best option as I've checked every area I can relate to and can't find anything

But even then , a nanocom may not show the issue. Have you checked the fuel delivery?

Cheers

Disco_2 · Sep 14, 2017

neilly said:
But even then , a nanocom may not show the issue. Have you checked the fuel delivery?

Cheers

It seems to run ok ish but then again there is a issue to starting the car in the morning, i.e. Takes about 8-15 seconds to fire up

neilly · Sep 14, 2017

A few things to look at:

Injector washers and seals is always a good place to start, but use genuine parts.

Have you changed the fuel filter?

Can you check the fuel pressure at the FPR?

Cheers

Disco_2 · Sep 14, 2017

neilly said:
A few things to look at:

Injector washers and seals is always a good place to start, but use genuine parts.

Have you changed the fuel filter?

Can you check the fuel pressure at the FPR?

Cheers

I had ordered the injector washers and o rings and was adviced not to do it but a Land Rover garage as he said they're ok? Also the fuel filter I haven't changed so will deffo get that done? Is that difficult to change myself? And where is the FPR located?

Disco_2 · Sep 14, 2017

Disco_2 said:
I had ordered the injector washers and o rings and was adviced not to do it but a Land Rover garage as he said they're ok? Also the fuel filter I haven't changed so will deffo get that done? Is that difficult to change myself? And where is the FPR located?

How would I check the fuel pressure?

neilly · Sep 14, 2017

Have you tried the fuel purge procedure?

Injector washers and seals , I changed the other week on mine. Now it starts on the button.

I also had to change the fuel filter housing as the old one basically fell apart. Which meant I also got to change the air bleed valve and the non return valve in them as they are included.

Fuel filter is behind the offside rear wheel. Quite easy to see.

FPR is on the rear offside of the engine and is a PITA to get to on the D2. Although you can screw a fuel pressure gauge into where the fuel temp sensor goes to check the pressure easy enough.

Cheers

Disco_2 · Sep 14, 2017

O

neilly said:
Have you tried the fuel purge procedure?

Injector washers and seals , I changed the other week on mine. Now it starts on the button.

I also had to change the fuel filter housing as the old one basically fell apart. Which meant I also got to change the air bleed valve and the non return valve in them as they are included.

Fuel filter is behind the offside rear wheel. Quite easy to see.

FPR is on the rear offside of the engine and is a PITA to get to on the D2. Although you can screw a fuel pressure gauge into where the fuel temp sensor goes to check the pressure easy enough.

Cheers

ok I'll probably do the injectors first, I'm worried I'll get it wrong and then it cost a lot of money to sort, that's why I never tried to do them before

neilly · Sep 14, 2017

Disco_2 said:
as adviced not to do it but a Land Rover garage as he said they're ok

What was the reason for this?

Cheers

Disco_2 · Sep 14, 2017

neilly said:
What was the reason for this?

Cheers

They said that they shouldn't need doing and they'll be on, last time they was done was 2012 brand new injectors cost around £1500

Simon098 · Sep 15, 2017

Disco_2 said:
They said that they shouldn't need doing and they'll be on, last time they was done was 2012 brand new injectors cost around £1500

Injector seals are funny ones and you never really know until you take them out. However, this doesn't sound like your performance issue.

Can you describe this noise a bit more?

neilly · Sep 15, 2017

Simon098 said:
Injector seals are funny ones and you never really know until you take them out. However, this doesn't sound like your performance issue.

But in post 44 he does say he also has a starting issue.

Cheers

Simon098 · Sep 15, 2017

neilly said:
But in post 44 he does say he also has a starting issue.

Cheers

Starting issue can be caused by alot of things, including injector seals

Simon098 · Sep 15, 2017

How did you check the MAP sensor? Also, have you checked the injector codes are correct?

Just noticed that this is an auto too, I'm not too great with auto's having never owned one, but as I understand, the auto-box can cause various running issues too

Disco_2 · Sep 15, 2017

Simon098 said:
Injector seals are funny ones and you never really know until you take them out. However, this doesn't sound like your performance issue.

Can you describe this noise a bit more?

Basically when I put my foot down to the floor it sounds like there is no power going to the turbo at all and air is being lost... basically a large humming, rumbling noise when flooring the pedal

Disco_2 · Sep 15, 2017

Simon098 said:
How did you check the MAP sensor? Also, have you checked the injector codes are correct?

Just noticed that this is an auto too, I'm not too great with auto's having never owned one, but as I understand, the auto-box can cause various running issues too

I checked it with the meter getting the voltage for each pin engine off and ignition on... and today I have changed the transmission filter and oil?.

Simon098 · Sep 16, 2017

Disco_2 said:
Basically when I put my foot down to the floor it sounds like there is no power going to the turbo at all and air is being lost... basically a large humming, rumbling noise when flooring the pedal

Have you checked the intercooler? Thry often balloon from overpressure and leak like mad.

Also, I don't think this is the issue, but its easy to check. Have you checked the turbo spindle too?

Disco_2 · Sep 16, 2017

Simon098 said:
Have you checked the intercooler? Thry often balloon from overpressure and leak like mad.

Also, I don't think this is the issue, but its easy to check. Have you checked the turbo spindle too?

The intercooler looos ok no signs of ballooning etc, also the turbo spindle has a slight bit of play in the bearing but nothing to stop turbo from working, it's like the air pressure is eascaping else where before getting to the turbo

Simon098 · Sep 16, 2017

That would be suction noise not air loss. Check the hose connection on the maf sensor. Also have you actually checked the air box and the filter? You may have something blocking the inlet. You could drive it a little without the maf attached to the air box to see if this improve it.

Just remember you'll have no filtration etc, but it should be fine to give it a test, just don't do it in the wet or a really dusty day. Mild dampness is ideal.

TD5 lack of power under load.

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