Range Rover P38 DSE loss of power

tom6905 · Sep 18, 2010

I have had this P38 for nearly a year now and had a few problems (as expected with a P38) but nothing major, however over the last few weeks I have noticed a lack of power when accelerating and almost seems to have trouble pulling it's own weight.

For example, pulling into the outside lane of a motorway to overtake it seems to take about 15 seconds to climb 10mph.

If anyone could offer any advice on why it has lost so much power over 2 weeks it would be much appreciated.

brianbrianyi · Sep 18, 2010

is the pipe from manifold to filter connected

bodie · Sep 18, 2010

if it feels like the turbo is not coming up on full boost check for ahy split pipes on the turbo etc if no split pipes then disconnect air flow meter then take it for a drive if you get power backits the air flow meter needs replacing cos this may not come up on any fault code reading

wammers · Sep 18, 2010

Yes check the pipe from under manifold to MAP sensor on fuel filter bracket, make sure it is connected with no leaks and it is not split.

tom6905 · Sep 26, 2010

Thanks for advice so far..

I have had a look around and I can't seem to see any disconnected or split pipes.

However, I have not yet looked at the air flow meter. Did you mean the MAF sensor because a few people have been saying it may just be dirt in the sensor.

Thanks

Phill013 · Jul 3, 2011

Hi how did you get on with this fault as mine is doing exactly the same

RovyCouple · Jan 31, 2021

Just had similar issue, lack of power, bloody little rubber pipe, keeps dropping off, just interference fit ! Thanks to every body for the remedy and advice.

tomcat59alan · Jan 31, 2021

RovyCouple said:
Just had similar issue, lack of power, bloody little rubber pipe, keeps dropping off, just interference fit ! Thanks to every body for the remedy and advice.

Did you cut it back and refit?

Dopey · Jan 31, 2021

Just get a new bit of any old pipe that fits 50p will let you know if its the pipe, most maf sensors don't respond to cleaning its best to change to new one, swap one over and try a known one out

brianp38dse · Jan 31, 2021

RovyCouple said:
Just had similar issue, lack of power, bloody little rubber pipe, keeps dropping off, just interference fit ! Thanks to every body for the remedy and advice.

I use a small cable tie on the pipes that keeps them on

Dopey · Jan 31, 2021

I even think tread locker will do the same?

wammers · Jan 31, 2021

The correct size pipe also helps.

Range Rover P38 DSE loss of power

tom6905

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brianbrianyi

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bodie

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wammers

No longer with us, RIP

tom6905

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Phill013

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RovyCouple

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tomcat59alan

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Dopey

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brianp38dse

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Dopey

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wammers

No longer with us, RIP

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