my notes say 70 mmdoes anyone know the inner diameter of the air intake? The inlet on the left side (standing infront) ..
any chance of a pic of said issue ??The inlet on the left side (standing infront) kind of collapsed a bit on obe side
here is a picture. It looks a bit better now as I try to shape the left skde again.any chance of a pic of said issue ??
finding it a bit difficult to visualise the problem
i.e. what collapsed ..
[ be it the initial intake hose ?]
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i think they're for getting to some bolts at the back of engine ..
it came my mind that the lack of power is a bit like last year when a bloke from a garage where it was for some checks installed the turbo boost solenoid and forgot to put one of the hoses on. Maybe I should check towards that direction as well.
Thanks hd3, for those infos. I put the answers in, in Italic.thing is ..
only you .. the driver .. will know exactly .. see below parapraph
what this lack of power is .. - see below parapraph
compared to when it were running fine ..
could you sort of describe it ??
are there any other symptoms ? - my wife thought the engine got louder than before.
like .. rough idle - not sure what you mean by that, see below, next paragraph.
excessive exhaust smoke .. - not really, was standing behind the car the other and didn‘t even smell anything.
or anything else
After the improvement of the diesel via that energy metall there was an increase in power meaning the accelerator pedal was more responsive and easier to push down with almost no need to put it down. Even uphill the power was very good so that my wife could drive it again which changed last week on the motorway after I changed the air intake hose and also vac hose to the egr. Not immediately after I changed it, but the way in Belgium after the ferry. Just remembered that I took that outer fabric of the air filter as a bloke mentioned on yt in order to give it a bit more air, not sure if that is a problem. It only works uphill with a kickdown to properly accelerate at the moment. There is a strange noise though, when standing at a traffic light. Usually I put in into N-position. It‘s not always, if you mean that with rough idle.
as ar as that dent in the plastic ducting is concerned ..
could you apply some local heat .. gently ..
and reform it using a suitable tool ..
( just an idea )
i mean .. if you want to totally discount it in trying to solve the lack-of-power issue .. - I tried toreform it back and to the look on the picture it worked, but not really further. Yes, I think I might do it, just to make sure it‘s not the problem or part of it.
the more i think of it .. that small dent just ain't enough of a restriction to cause
a noticeable lack of power in normal driving conditions ..
i think to notice its effect you'd need a rolling road and assorted measuring instruments
and to run the engine at full power ..
and with known and controlled ambient conditions .. talked to LR in DE yesterday and he said maybe one of the turbo hoses might leak, that would often be a problem with them, but I have the silicone ones on, will check the clamps for the intercooler hose, just to make sure.
well .. yeah ..
a hose missing off that solenoid would certainly effect the power output .. for sure .. - checked it and all looks still good, except wondering if the black-blueish hose should be changed or it was changed in the garage in Reading end of 2014.
i'd start with the basics
air and turbo solenoid filters : are they clean and dry ? air filter I blew through with a compressor to test. It helped a bit, might be better to change, have one laying around. The turbo vent filter I changed about in Sep last year and still looks clean and dry while the air filter doesn‘t look that clean anymore, even though it wasn‘t that long ago that I changed it. Definitely not 24k miles as mentioned in Haynes. There is the left rear bolt of the housing missing, which I ordered, but couldn’t build in as something else seems missing. Not sure if the dust comes from that and not sure how to fix it, to be honest.
exhaust : is there any sign that the cat or silencer(s) are disintegrating inside,
and causing an exhaust flow restriction ? Not that I could see or recognize off, still blowing put like usual.
fuel: is there any sign that the l.p. pump is not up to its job
e.g. are the rpm hitting a brick wall when you put your foot down, will test that, guess better when engine is properly war, still at around 90mi there was a lack from time to time
.. is the fuel filter near its change by date ? .. That might be close by, yes, have new one already here.
sensors: is the maf sensor working properly .. I cleaned it in Sep last year, hope it does. How could I check or just to clean again?
same for the air-intake temp sensor .. How could I check that? Where is it located?
same for the map sensor .. I cleaned it two weeks ago a bit with a cloth, how could I clean that properly? Put it into petrol or something like that?
are the fuel rail pressure sensor plug contacts squeaky clean - will check,
egr valve : is it working properly ( or have you blocked it off .. or similar ) - had a pic in another thread the other day to ask if it needs cleaning andd to look still fine.
drive train: is the vcu in good order .. are the wheels free of any brake drag .. - vcu damper and bearings were changed last year and the mechanic said, vcu looked fine still
are the tyres in good order .. yep, just got new tyres, also didn‘t help
turbo: is the solenoid working as it should ( not sticking ) .. you mean the turbo boost? had it changed last July
is the turbo vane actuating arm not sticking .. where would that be? Would need to check if I can find it.
are the turbo hoses free of any leaks - the turbo hoses were changed end of 2014 due to leaks and then the car stood due to gearbox issues till last year.
vacuum hoses: are they free of any leaks .. the one from the egr I changed, which else to check? All of here https://www.landyzone.co.uk/land-rover/td4-vaccuum-pipe-diagram-request-again-solved.287163/ ? The invoice from rovertune says replace turbo boost pressure pipe and variable turbo nozzle boost pipe hose
has the fuel sedimenter been drained within the last year - not sure about that, does the 02 TD4 has that, it says in the manual from what I found only 03 onwards?
any sign of water or diesel bug
are you using fuel from a reliable source quality wise - Couldn’t say I would, sometimes Gulf, Tesco, sometimes Shell or Aral, depends on where I am.
has the engine been remapped - No
are u using a tuning box - No, not yet
( i've probably missed something .. but its late .. and i'm somewhat tired ) no problem, thanks a lot for that.
try and describe this loss-of-power that you experience .. Apart from the above I am not sure what else, except it‘s just not responsive and need to put
it way further down than before and it‘s super easy to put/push it down with not really a response. My knee hurt on the way back from Germany compared to a more relaxed cruising before.
maybe .. we the forum members can narrow down the possibilities ..
could be that a diagnostic check would show up the issue ..
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in general for common internal combustion engines:
hot humid days .. performance down
cold dry days .. performance improves
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the quote is All italicsI put the answers in, in Italic.
i think on an 02 year it's part of the maf sensor circuitrysame for the air-intake temp sensor
How could I check that? Where is it located?
i think some folk use a carb. cleaner spraysame for the map sensor
I cleaned it two weeks ago a bit with a cloth, how could I clean that properly? Put it into petrol or something like that?
a dirty air-filter will cause a lack of engine response .. simply as it inhibits airflowair filter I blew through with a compressor to test. It helped a bit, might be better to change, have one laying around.
might be a clue in there ..Even uphill the power was very good so that my wife could drive it again which changed last week on the motorway after I changed the air intake hose and also vac hose to the egr. Not immediately after I changed it, but the way in Belgium after the ferry.
The air filter I tried to change, but the new one from Mahle seems to be to big, even that it's Lx823 like the old one. Couldn't get it properly into the housing as the part with the open end doesn't fit on.
i think on an 02 year it's part of the maf sensor circuitryWould you know where the air temp sensor is on that 02 model? Couldn‘t locate it yet, and it‘s not like on the facelift.
so fuel pumps and filter ok ..Rev’ed it up to 4500 w/o problems the other day when warm.
mine hardly ever sees more than 3000rpm .. have never felt easy revving a diesel ..
( 2700 in 5th .. be 70mph on mine
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