Loss of power

Can anyone help with an issue I have with my freelander 1? Its started to lose power, this happens when I pull away in 1st gear and when I’m driving up hill. I have to rev the car very high then all of a sudden it picks up speed. Thanks in advance

You need to check the simply stuff first like vacuum pipes for leaking. Also corrosion on the rail sensor, and for splits in the boost pipes.

Nodge68 said:

You need to check the simply stuff first like vacuum pipes for leaking. Also corrosion on the rail sensor, and for splits in the boost pipes.

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Thanks

Hi there I had this problem with my 2.2TD4 HSE
The issue was that after sitting on tick over in traffic or waiting at junctions when pulling away there was just no acceleration, along with this you could pump the throttle and there was no increase in the revs.
After many inspections I took it to a proper LR garage who after discussing with me the fault when it happens what cured it .
The mechanic asked if I had had it serviced recently, which I did at a independent garage ...
Long story short they had used an aftermarket fuel filter and not a LR genuine part.
The issue is with the filtering material that is used inside the filter and the internal shaping of the filter, it causes fuel to back up then when you touch the accelerator it floods file through causing a safety cut in the throttle ...basically it thinks the throttle has suddenly jammed open.

Hope this is of use to you, all the best

Mungojerry said:

The issue is with the filtering material that is used inside the filter and the internal shaping of the filter, it causes fuel to back up then when you touch the accelerator it floods file through causing a safety cut in the throttle ...basically it thinks the throttle has suddenly jammed open

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Now that's a good yarn to spin. There's no throttle on a diesel, so nothing to cut for 'safety'. A diesel is fuelled by adding more fuel, so nothing can back up.
The FL2 does actually have a throttle plate, but it's there for improved effectiveness of the exhaust gas recirculation system. It can stick shut too, but it's due to muck in the intake manifold, and nothing to do with the fuel supply system.

Nodge68 said:

Now that's a good yarn to spin. There's no throttle on a diesel, so nothing to cut for 'safety'. A diesel is fuelled by adding more fuel, so nothing can back up.
The FL2 does actually have a throttle plate, but it's there for improved effectiveness of the exhaust gas recirculation system. It can stick shut too, but it's due to muck in the intake manifold, and nothing to do with the fuel supply system.

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Well what can I say to you.
Firstly thought these forums were to help LR owners find solutions to problems !!
Perhaps a bit of open mindedness instead of discounting what somebody else has to say.
Secondly for the sake of keeping my post short I didn't include the other things that had been done to try and fix the problem by the independent specialist, which included the full throttle pedal and sensor being replaced, ( yes fully aware it's fly by wire and no actual cable )
Third I can only explain it the way it was explained to me by the LR technician to me, now perhaps you could be a dear and explain to me after five trips to a garage and them replacing a fuel pump, the throttle pedal and sensor assembly a vacum pipe and a MAF sensor ( last one is from memory not sure if that was the exact name of it....)
I am asked by the independent specialist to take it to a LR garage for a full diagnostics, and as soon as I start deceiving my issue to the tech he asks about servicing and what was done to the car at that service, and straight away he says it's the fuel filter it will be aftermarket....and more importantly that taking out the filter and putting a genuine one in sorted the issue completely ...
I bet you don't have an answer to that part do you ???

Detailing my issue that should have read

Mungojerry said:

Perhaps a bit of open mindedness instead of discounting what somebody else has to say.

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I was referring to the LR technician sprouting babble. I expect the throttle body needed cleaning, and he wanted to make himself look better? Possibly.

Mungojerry said:

Firstly thought these forums were to help LR owners find solutions to problems !!

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They are. Which is why I answered his initial post the way I did.

This is also why I didn't really see the relevance of what the LR tech told you about your issue about the Peugeot DW12 engine fitted to your FL2, when the OP has a running issue with the BMW M47R engine fitted to his FL1. Apart from the fuel used, the 2 engine share no parts, have completely different fuel systems and are of a completely different design era, so suffer from very different issues.

Mungojerry said:

I bet you don't have an answer to that part do you ??

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Aftermarket parts, especially filters can cause issues. However they often stop fuel flowing freely, which causes starvation, which is very true on a vacuum fuel supply of the DW12, where the low pressure fuel pump is integrated into the high pressure fuel pump on the engine. There's no low pressure fuel supply monitoring, so the EDC wouldn't know there is an issue on the vacuum fuel feed system. The EDC wouldn't be able to maintain engine running, as there was fuel starvation, but it wouldn't know why.

The FL1 BMW M47R uses a pressurized low pressure fuel system, so can cause starting and running issues if the filter isn't working correctly. However the M47R EDC monitors the low pressure fuel system and cuts the engine if the low pressure supply doesn't exceed a minimum threshold.

Nodge68 said:

I was referring to the LR technician sprouting babble. I expect the throttle body needed cleaning, and he wanted to make himself look better? Possibly.

They are. Which is why I answered his initial post the way I did.

This is also why I didn't really see the relevance of what the LR tech told you about your issue about the Peugeot DW12 engine fitted to your FL2, when the OP has a running issue with the BMW M47R engine fitted to his FL1. Apart from the fuel used, the 2 engine share no parts, have completely different fuel systems and are of a completely different design era, so suffer from very different issues.



Aftermarket parts, especially filters can cause issues. However they often stop fuel flowing freely, which causes starvation, which is very true on a vacuum fuel supply of the DW12, where the low pressure fuel pump is integrated into the high pressure fuel pump on the engine. There's no low pressure fuel supply monitoring, so the EDC wouldn't know there is an issue on the vacuum fuel feed system. The EDC wouldn't be able to maintain engine running, as there was fuel starvation, but it wouldn't know why.

The FL1 BMW M47R uses a pressurized low pressure fuel system, so can cause starting and running issues if the filter isn't working correctly. However the M47R EDC monitors the low pressure fuel system and cuts the engine if the low pressure supply doesn't exceed a minimum threshold.

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So will deal with last part first.
Applause where applause due you obviously know your stuff.
But reading through your comments just sounds like your actually backing up what I've said about the fuel filter......
I am not well versed in all things LR and very new to the ownership of said Marquee, and starting to learn fast about their individual characteristics.
My point in my comment was truly to try and help the other person.
If it was an issue on my car I could see it being the cause on his.
This was my aim.
As far as a tech goes he seemed a pretty genuine guy to me at a long established LR main dealer I had no reason to doubt his experience especially as swapping out the aftermarket for the genuine part solved the issue straight away.
As far as the actual operating systems that control and monitor the fuel supply I would have to take his information as give to me as being correct. Obviously with your input I'm a bit more educated on what happens from point A to point Z and all in-between...
Can you suggest a book or books that I could read that are in-depth into Freelander 2 mechanics and electrics that might give me more info at a more novice level to help with my own car ?? This would be appreciated.
Finally my point on the here to help I was surprised that the forum would have somebody come down in a more novice person for trying to help but appreciate that it wasn't aimed at me but at the tech from LR.
I'm not here to fall out with people i have a genuine interest in trying to find stuff our and would like to help if I can a fellow LR 2 sufferer.
Many thanks

Mungojerry said:

So will deal with last part first.
Applause where applause due you obviously know your stuff.

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I'm much more versed with FL1 and Rover stuff than the FL2, which is based on the Ford EUCD platform.

Mungojerry said:

But reading through your comments just sounds like your actually backing up what I've said about the fuel filter......

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Yes. Aftermarket filters can and do cause issues, sometimes minor fuel problems, sometimes major engine failures. I'd always recommend genuine or OE filters.

Mungojerry said:

I am not well versed in all things LR and very new to the ownership of said Marquee, and starting to learn fast about their individual characteristic

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There's a lot to learn, especially on the modern FL2, some issues still remain a mystery even to LR technicians.

Mungojerry said:

My point in my comment was truly to try and help the other person.
If it was an issue on my car I could see it being the cause on his.

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That's fine. Help is always welcome, which is what makes a forum such a wealth of information.

Mungojerry said:

As far as a tech goes he seemed a pretty genuine guy to me at a long established LR main dealer I had no reason to doubt his experience especially as swapping out the aftermarket for the genuine part solved the issue straight away.

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I've heard so much BS from technicians over the years. It difficult to work out if they're being serious, or trying to pull the wool over the owner's eyes. I liken it to visiting a Dr with a particular medical issue, only to be told it's some virus. Basically he doesn't know what's wrong, so says it's a virus.
In this instance, the filter was your virus.

Mungojerry said:

As far as the actual operating systems that control and monitor the fuel supply I would have to take his information as give to me as being correct.

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That's understandable, with no other explanation to the contrary.

Mungojerry said:

Obviously with your input I'm a bit more educated on what happens from point A to point Z and all in-between..

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Possible I guess.

Mungojerry said:

Can you suggest a book or books that I could read that are in-depth into Freelander 2 mechanics and electrics that might give me more info at a more novice level to help with my own car ??

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Unfortunately not.

Mungojerry said:

Finally my point on the here to help I was surprised that the forum would have somebody come down in a more novice person for trying to help but appreciate that it wasn't aimed at me but at the tech from LR

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It wasn't anything to do with having a pop at you. Just what the tech told you.

Mungojerry said:

I'm not here to fall out with people i have a genuine interest in trying to find stuff our and would like to help if I can a fellow LR 2 sufferer.

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Nor me. No offense was ment, so apologies if I offended you.

Many Thanks.
And like wise if I have offended you the same apoligie us extended to you cheers