View Full Version : LT35 Losing Power
boisty
23-11-2009, 01:13 PM
For some time now I've been plagued with an intermittent loss of power on my van which generally shows itself on motorways once warm.
From advice I have replaced the air flow sensor which i understand is a common problem on VW diesels but this does not appear to have solved the problem.
My local garage have plugged in their box of tricks but no fault codes are stored and they have suggested that I need to return the van to them with the fault showing.
When the fault occurs I simply switch off the ignition, coast for a little way and then switch back on and the fault clears, somtimes to reoccur quite soon, sometimes not to reoccur again for some considerable time.
Does any one have a clue what might be the cause/cure??
Hi Boisty,
This is a problem i had and still have with my 35, i found the limp mode came in when i had been a bit heavy with right foot on motaway, if you know what i mean, after a while when i was around 50 - 60mph she would cut down as thou the turbo was not there so i do as you have said switch off and alls well again, i had the air flow meter changed at vw dearler and this did cure mine for 100,000 miles or so, but problem has come back again,i have fitted another meter myself but made no diff and was slow to rev from tick over so not sure if a new one has to be set up at dealer maybe some one on here could verify this
best of luck
ray
kenney
24-11-2009, 07:34 PM
It is important that you fit a genuine VAG AMM sensor.It is only a matter of replacing the sensor,nothing else needs to be done.boisty does your local garage have the test cable for the LT,i think it strange there are no fault codes
Hi Kenney,
sorry to butt in, when mine did it the first time the vw dealer said no code faults came up but they said it sounds like the air mass meter (a common fault) so am i right in thinking that the new air mass meter i have from vw does not need to be set up, just a case of fit and go type item
again sorry to butt in
rayl
kenney
24-11-2009, 08:28 PM
It does not need set up.
boisty
29-11-2009, 10:20 PM
It is important that you fit a genuine VAG AMM sensor.It is only a matter of replacing the sensor,nothing else needs to be done.boisty does your local garage have the test cable for the LT,i think it strange there are no fault codes
Yeah, they have the test cable and it reads the system ok but finds no fault codes.
The air mass sensor that I replaced was a genuine air flow sensor and I did expect it to work as the same operation solved the problem on the wife's Seat and on previous diesel Audi's.
As Rayl said in his reply, the problem only shows itself, when driving at speed if I am a bit heavy with the right foot. Is there some sort of over boost sensor causing it to bring in the limp mode?
lee lt
05-12-2009, 08:53 PM
I have the same problem on my 2004 lt35 .I have changed the airflow meter but it still does it, i have taken it to a local specialist and he recons its the actuator rod on the turbo sticking causing the turbo to shut off due to overboost.The vac reading is ok so this adds up because the van was stood for a few months before i picked it up .It used to be a flying fridge and it has 450000miles on it . I recon a new tubro is the way to go ,mine is still on the original turbo and engine. hope this helps.
Thanks for posting that lee lt, can you say wheather its when you have used your right foot a bit heavy , ie,( on the motorway) for a period of time ?
mine and boisty have the problem when this is done , plus i have heard of two more this weekend that have the same problem and many more in the past,but, only happens when slightly heavy with the right foot to maintain a high speed, so it seems a sensor or mechanical part comes into play when these higher speeds are used for a period of time.
is there any one on this forum who works with these motors that can shread some light on a part thats most likly to cause this kind of problem, as replacing this or that item is going to work out very expensive as a try and see cure.
thanks
rayl
lee lt
06-12-2009, 07:05 PM
Mine cutts the turbo on steep hills in 3rd gear and somtimes on the flat in 4th when nailing it.
lee lt does the vehicle run normal again if switched off and started again ?
rayl
lee lt
06-12-2009, 09:11 PM
yes i when i turn the ingnition off then on whilst moving
boisty
07-12-2009, 07:16 PM
Thanks for posting that lee lt, can you say wheather its when you have used your right foot a bit heavy , ie,( on the motorway) for a period of time ?
mine and boisty have the problem when this is done , plus i have heard of two more this weekend that have the same problem and many more in the past,but, only happens when slightly heavy with the right foot to maintain a high speed, so it seems a sensor or mechanical part comes into play when these higher speeds are used for a period of time.
is there any one on this forum who works with these motors that can shread some light on a part thats most likly to cause this kind of problem, as replacing this or that item is going to work out very expensive as a try and see cure.
thanks
rayl
Thanks for all the info guys, looks like we are all suffering with the same problem and as Rayl says, sounds like some sensor or mechanical part tripping in at higher speeds.
So, who's the technical whizz who can shed some light on the problem??????
lee lt
08-12-2009, 05:49 PM
IIspoke to a mechanic today he said it could be a build up of carbon in the turbo and exhaust. mine still has the original at 440000 miles,he also sugested the wastegate actuator could be sticking , Whats the millage on your vans guys?
i've got over 400,000 on mine 2nd turbo 1st changed in warranty around 20,000 or so exhaust is new, engine does'nt burn oil and sounds as sweet as a nut
boisty
09-12-2009, 07:00 PM
Mines showing 150,000
lee lt
10-12-2009, 10:08 PM
Has you van been stood idle for a time?
mine has been stood now for 9 months but it is started up often, and first time every time, i am seriously thinking of putting it back on the road again to take the pressure off the new sprinter, (this vehicle can't cope :biglaugh:), in the 4 years that the lt did 400,000 miles from new i had no problems with her just the usual pads , belts, oil & filter changes, they were and still are good motors if looked after,
rayl
boisty
11-12-2009, 06:39 PM
Has you van been stood idle for a time?
No, used every day. I don't do big mileage, mostly local stuff with the odd, shortish motorway journey once or twice a week but I can guarantee the fault will show up once on the motorway.
boisty
21-03-2010, 05:13 PM
Still having the same problem with no clue yet as to the cause so thought it might be worth resurrecting this thread in the hope that someone new spots it and has the answer....
Hi Boisty, it might be worth you listing what you have checked yourself or by someone else, a friend of mine who has a company's lt and i see every week night has been having probs (limp mode) so sent his in for sort out, he's had the air mass changed and says so far so good, but, he said the same as everyone else it does not do evry night so he will see how he gets on, but a common thing is that when you've given the vehicle some speed (if you know what i mean) this is what brings on the limp mode if you have to slow down for road works etc doing 50ish mph then clog it when clear, mine did the same
lee lt
23-03-2010, 11:53 PM
After a 800 mile motorway trip my lt is no longer going in limp mode ,not even on the local hills it would always do it on. A good 10hr thrash seems to have cured it !:confused:
Was you loaded with a bit of weight for all or most of the trip?
lee lt
24-03-2010, 01:07 PM
My van is fully insulated and fibreglassed as it was a fridge van so is quite heavy empty, it was full of tools and has extra row of seats and my dog was in there too about a 3/4 load i would say.:confused:
The reason i asked lee lt is that with mine it was more common to limp if i was light loaded, say around 400kgs ish, yet when i have done a run with maybe 900kgs to 1100kgs she ran like a steam train, no limp mode , and held her speed well, maybe these engine's need to be working hard by pulling weight, same prob with a collegue his started this limp mode performance when his loads lightened up recently but had been fine up to then. Just as an add on my merc i use now certainly performs better when carring weight, proberly clears the gunk and whatever else that builds up in the breather and exhaust system's out ??, so as you say maybe a good thrash now and again might be good.
lee lt
24-03-2010, 08:49 PM
It always has the same load on but i only do short runs normally 1/2 hour max driving to jobs ,it is the first long run i have done in 5 months ,cornwall to yorkshire and back non stop each way with 100 miles of nipping round while i was in sheffield. I reckon it has to be crap in the vaines on the turbo. My van was stood for 5 months before i bought it and before that it went from sheffield to kent every day since 2004 and never had the power loss problem . Hope you find a cure as cheap as mine.:confused:
Let us know how you get on over the next few months if you will, ie, see if she plays up again on short light load runs etc, i dont use mine much now but you may have hit on something :beerchug:
lee lt
25-03-2010, 09:46 PM
Will do mate fingers crossed the engine wont blow next week!
lee lt
14-11-2010, 10:59 AM
After a full summer of no limp mode its f****** started again ! Anybody found the cure yet. Im off to the dealers tuesday for a new air mass meter dont think it will help but its the cheapest starting point.
anilkumar
16-11-2010, 02:53 PM
have you had a vagcom scan done again and is your van a 2.5 109 or 2.8 this is a strage problem :confused:
lee lt
16-11-2010, 03:09 PM
Had it pluged in last year when it was doing it no fault found.
Cold weather back again????? pity your not close to me i have a oem mas metre here brand new you could have tried, i dont use my lt that much now although that may well change in a few weeks, you been on short trips or long? how about fuel using cheapo tesco, sains, asda, or main stream, i dont use cheapo any more in the merc as it effects its power output and running, people say its the same as main stream fuels but i beg to differ, as when you do a few thousand mile a week you know your own motor, have a think lee lt have you hammered it lately, short trips, long empty trips etc, every one i know says the plug showed nothing yet there is a prob, check the pipes and all that again, post back and lets hope you find something positive, good luck...ray
boisty
16-11-2010, 07:23 PM
Since starting this thread ages ago i'm sorry to see that so many seem to be having the same problem but thanks to everyone for keeping the thread going.
My LT is still playing up but I've learnt to live with it however a further symptom I've noticed is that during wet weather it doesn't seem to go onto limp mode as readily as when the weather is dry and warm ??????????? :confused: :confused: :confused:
On a side issue, has anyone replaced the glow plugs on a 2.5LT and is it best to remove the inlet manifold to make access easier???
Geezer255
11-12-2010, 09:46 PM
Ive just bought an LT35 2.5 off a mate of mine, came from his onto a dual carrigeway and went to boot it through the gears and all of a sudden no turbo, drove it all the way home like it, turned it off and started it again 10 mins later and still the same, then parked up for an hour, Started it again and it goes like a train again, its been sat for 2 months and has done 182k, when I spoke to him later he said yeah its always done it in the 2 years hes had it and is very hit and miss, so theres another one to add to the list, Ill be changing the afm this week and see how that goes, im going to keep my code reader in the van that does vag so if it goes into limp I will try and get a code ;)
mickmtb
16-12-2010, 01:30 AM
Since starting this thread ages ago i'm sorry to see that so many seem to be having the same problem but thanks to everyone for keeping the thread going.
My LT is still playing up but I've learnt to live with it however a further symptom I've noticed is that during wet weather it doesn't seem to go onto limp mode as readily as when the weather is dry and warm ??????????? :confused: :confused: :confused:
On a side issue, has anyone replaced the glow plugs on a 2.5LT and is it best to remove the inlet manifold to make access easier???
yes mate take the inlet manifold, off they are a real struggle to get at
Re fault
Has any one checked the connections re those multi pin plugs on older cars you'd some times have to close up the wirering connections to get a good contact
seems to me that's an option
cheers
Mick
Geezer255
16-12-2010, 10:22 PM
Well my van has been suffering with all the common probs, the turbo, the cold starting, wastegate playing up, so I decided to chuck it into Colchester fuel Injection to get the cam and pump belts done but also told them to just sort the van as i want running right, I should be getting it back Monday so I will give you an update as to what they have done to it to make it all right, they seemed pretty confident they knew what all the probs were so fingers crossed, wallet is already bracing itself ;)
lee lt
19-12-2010, 12:08 PM
I did a 1000 mile trip to the lakes in late summer fully loaded 3300kgs plus me no limp at all since i have been back doing short trips it started again. On a trip to exeter airport with light load it cut out about 40 times on the trip up. After xmas its having all the belts done at my mates garage he has a lt ,we are going to swap each part connected with limp mode till we find it i will let you know what we find .
kenney
19-12-2010, 01:01 PM
What is the engine code of your vehicle lee it
Geezer255
19-12-2010, 02:00 PM
Mines just had a new Maf, the belts done and they found the reason the turbo was over boosting was a small hole in one of the intercooler pipes, when I pick it up tomorrow I will give it a good thrashing around and let you know how it goes ;)
Geezer255
21-12-2010, 05:28 PM
Well Ive taken the van out today for a good run around and its a totally different machine, engine makes half the noise it did before, cant hear the turbo screaming away, it pulls like a train up 90mph (had to lift off because soneone got in the way) The turbo didnt cut out once and the van was empty, its drives amazingly well now for a van thats done 182k, I even put it in for an MOT today and the bloke who did the test had to scream the engine to get a reading on gas machine because it was running so clean.....
Hi Geezer, Glad something was found at least, let us know how you get on over the next few thousand miles, mine started to do it again, was sent in for cam belt change for peace of mind more than cure the problem as has been not used much for last two years, when weather gets a bit warmer i will have a look at the usual suspects for this problem, not to bothered at mo as i use my other motor for my main work, hope your old problem stays away for you as its very very anoying :aargh4: to say the least when overtaking
frand
22-12-2010, 08:17 PM
Mine cutts the turbo on steep hills in 3rd gear and somtimes on the flat in 4th when nailing it.
hi guys just bought a lt ashort while back 06 model. it does exactly as u guys have mentioned- im sick of it, it also smokes quite heavily when cold- have i bought a kipper? thanks, ant advice?:(:1zhelp:
Frand, have look back through all the post's about lt's losing power, it might be just the air mass metre needs changing, or, it could be a pipe which has a split or hole in it, worth checking yourself first before letting a dealer have a look and empty your pockets at same time, when your motor does go into limp mode (which is what all this is about) switch off and restart and you carry on till it does it next time, just be carefull when overtaking, i find its usaully when i have given it a bit off welly, then drive normal, ie, light footed.
Dan 80
23-12-2010, 04:30 PM
My bosses van, 2004 LT35 is doing exactly the same. Can anyone shed any light as to where the diagnostic socket is on these things?
I'll get him to change the MAF and see how the vehicle performs then.
Dan
The diag socket is under the dash passenger side where the bonnet pull is, should have a small round plastic cap covering the terminals
Dan 80
23-12-2010, 07:09 PM
The diag socket is under the dash passenger side where the bonnet pull is, should have a small round plastic cap covering the terminals
Thanks,
Does the LT have the 14pin round socket then?
Dan
Its is a round socket not sure how many pins
Geezer255
29-12-2010, 07:12 PM
Yes its a 14 pin socket
lee lt
07-01-2011, 09:38 PM
I found an intresting post on a usa forum ,some lads with jetta tdis with the same problem that we have .A number of them have cured it cleaning the exhaust side of the turbo with oven cleaner . I have decided to try this as it only cost £5 for a bottle of oven pride. I put it in this afternoon i will rinse out tomorrow take for a test thrash and post results.
`
mickeybo
08-01-2011, 01:56 AM
Your turbo vanes are most likely sticking when vehicle detects over boost
condition the ecu cuts the voltage to turboboost solenoid which dumps the vacuum when ignition is re-cycled it'brings back power i have on occasions
used a small vacuum gauge using a t piece between boost solenoid and
turbo actuator using the gauge in the cabwith a long piece of tube just to monitor when vacuum falls off Hth Regards Mickeybo
lee lt
08-01-2011, 02:02 PM
Put the front pipe back on this morning after cleaning out the oven pride, took the van for a thrash round the hills and NO limp mode !!!!!!!!!!!!!!!!!!!
Hi lee lt, have you got a cat on the exhaust ? mine is a avr engine and does not have a cat, and, when you took the turbo off was it badly sooted and coked up,
ray
lee lt
08-01-2011, 08:33 PM
Hi Ray ,no i have no cat on my van just a silencer halfway and a long tail pipe. Which all needs replacing as it is the original exhaust. To be honest it did not look that bad in the turbo but as i had the front pipe off ,which came off real easy ,i would proceed. Filled it full of oven pride turning and squrting with the cleaner that i put in a pump bottle ,i then turned the engine over but did not start the van filled it again and left it over night.Then flushed with the hose pipe then wd40 twice leaving it to soak for an hour the final flush with clutch and break cleaner . I did start the engine to flush each step. Seems to have worked van pulls alot better from low revs too.
Lets hope you've found the problem with yours and it stops the limp mode i will check mine out when i get time.
I changed my exhaust(silencer and back pipe) i got mine from car spares up here in brum, not a bad price either, if you need a front pipe thou, the one with the brading on the neck its only available from vw and when the dealer tells you the price make sure your holding on to something or your sitting down as you will realise why they call dealers ********hips. ray
lee lt
10-01-2011, 09:34 PM
Hi Ray mine is the avr too looked in to geting a full big bore stainless system made for the van and they are quite cheap £200 inc vat for the job lot fitted! I have a safe tee bar if you need one for your van.
cheers Lee.
Hi lee lt, thanks for the offer but i fitted a vw step when i brought the van new and suprise suprise its still going strong, the exhaust that you were going to have made that is cheap chap, does that include the front pipe that connects to turbo ? as least with stainless steel it will last longer than the usaual sht metal most companys use these days.
ray
lee lt
11-01-2011, 04:49 PM
Hi ray it is for the complete single pipe basic system . You can have twin pipes big bore etc sports etc but that costs a bit more.By the way i phoned the dealers for the front pipe and i wasnt near a chair F**k me £170 +vat ,off to the custom shop!!!
I did warn you ha ha, what a joke, the best part is, is that if you have a cat the pipe is available by none vw dealer and is bloody cheaper, work that one out, but you cant get the front pipe none vw :aargh4:, total rip off.
ray
aidybabes4
14-10-2011, 06:49 PM
Hi fellow lt35 owners i drive an lt35 2001 diesel and it has a severe decrease in power when you floor it.I have noticed if your driving along 50/60mph and just touch the brake pedal the engine dies for a couple of seconds i believe the brake pedal has a power cut off in its electrics but not sure this happens with my friends vw polo 1000cc too so this might be another idea to follow and when i say you just touch the brake i do mean just touch the brake could youz please try it and let me know thanks just incase these two vehicles are unique mind you still cant solve the problem sorry!!!!!!!!
Hi, yes the engine does die when you press the brake pedal and is normal, when you say floor it do you mean when you ease off the throttle and go to power up again when driving there,s no power if so try switching off then start again if the van runs ok again then you most likely have this problem that seems to haunt the lt's, usual suspect is the air mass meter, changed mine again and runs fine again, i am on me third one now in 400,000 plus miles,ray
aidybabes4
16-10-2011, 10:43 PM
Cheers Ray i will change the air mass meter and give it a try many thanks
aidybabes4
08-11-2011, 08:12 PM
Hi RAYL put new air mass meter on and worked a treat thanks very much man spot on ..
boisty
07-03-2012, 07:19 PM
Hi Ray ,no i have no cat on my van just a silencer halfway and a long tail pipe. Which all needs replacing as it is the original exhaust. To be honest it did not look that bad in the turbo but as i had the front pipe off ,which came off real easy ,i would proceed. Filled it full of oven pride turning and squrting with the cleaner that i put in a pump bottle ,i then turned the engine over but did not start the van filled it again and left it over night.Then flushed with the hose pipe then wd40 twice leaving it to soak for an hour the final flush with clutch and break cleaner . I did start the engine to flush each step. Seems to have worked van pulls alot better from low revs too.
Hi Lee
I haven't checked this posting for ages, having learnt to live with the problem but I was intrigued to read your posting and am interested to know if your turbo cleaning had any lasting effect.
lee lt
08-04-2012, 07:17 PM
The oven cleaner worked for about 9 months then when the cold weather and short trips it started again ,a good trip up the m5 seems to do it the world of good . I think cold weather and short trips are the cause a new turbo is the only fix in my case but just when it pi**** me of and i decide to get a new turbo on it seems to fix it's self!
lee lt
20-05-2012, 08:57 AM
Right she's booked in Tuesday for a new turbo to be fitted, hope it's the cure!
lee lt
21-07-2012, 07:28 PM
The new turbo has been on a couple of months now , the van pulls well and no limp mode. The howling noise the turbo made when stationary has gone too The wallet is a bit lighter on a down side as i fitted a new one instead of a recon unit.
R7CHT
29-09-2013, 10:38 PM
I have a LT46 158bhp with the same problem .....thought I could live with it until turbo blew on motorway ... so new turbo was fitted ,,,still same fault
been in to vw and they gave me the diagnostic print out off there system which shows a fuel pressure problem .
A different cheaper garage agreed with this and changed the fuel regulator on the pump ........nearly 400 pounds later still the same.... The guy is now talking about pulling injectors out to have tested but could give me no idea of cost .....Damage whilst extracting them etc etc
Anyone any ideas???????
rmo79
18-07-2016, 09:18 AM
Hello all. I have a yr2000 LT35 camper van with I believe the ANJ code engine. It is low on power and definitely not running right, looking for some help on diagnosing before replacing any parts.
Symptoms are general slugishness (i.e. struggles to get up to 65-70 and when you hit a hill really stuggles), van is not loaded heavily just the usual camper conversion stuff. Doesn't seem to 'reset' when turning off and on again and is generally underpowered all the time.
One thing I've noticed is that in first it seems to pull OK, then in second it starts to pull alright but then the turbo seems to cut out just when you're in the power band - it consistently does this. In 3-5th gears not much pulling power at all.. very flat - in fact it is quite tedious to drive so I'm hoping there is something I can do about it and I'm sure it should have more power!
Could it just be the AMM as previous posters suggest? Any other tips on diagnosing? I haven't had any fault codes read yet. The van has only done 60,000 and not noticed anything else wrong with the engine. Done the simple checks of pipes and leaks, can't see anything obvious missing, cracked etc. on the intake side.
Thanks for any help.
edit to add: I'm new to VW vehicles, what's the best way to identify exactly which airflow sensor I need for my vehicle? Call up the dealers with chassis number or is there a better way? :-) Are the Bosch ones shown as genuine on ebay the right ones or best to go direct to VW?
Jcsilva
07-10-2016, 01:44 PM
For some time now I've been plagued with an intermittent loss of power on my van which generally shows itself on motorways once warm.
From advice I have replaced the air flow sensor which i understand is a common problem on VW diesels but this does not appear to have solved the problem.
My local garage have plugged in their box of tricks but no fault codes are stored and they have suggested that I need to return the van to them with the fault showing.
When the fault occurs I simply switch off the ignition, coast for a little way and then switch back on and the fault clears, somtimes to reoccur quite soon, sometimes not to reoccur again for some considerable time.
Does any one have a clue what might be the cause/cure??
Hi, there.
I had the same problem on my Vw Passat and it's the catalyst flex that is broken and looses power and makes the turbo for safety reasons to shut down .
You may notice a diferente noise on your exhaust and it's the catalyst that is damage.
This will solve your problems defenetly .
Thanks guys
BrookThompson
17-11-2016, 12:12 PM
Hi everyone. I know this is an old thread but losing hope with getting my 1.4 tsi beetle Sport fixed. Vw don't have a clue and nothing showing on diagnostics. I'm having the same problem when at full throttle I'm having the boost cut to half so feels like it's sticking and lost half its power. Vw said they can't do anything so hoping someone will know and have had theirs fixed and will be able to point me in the direction of parts that could be causing the issue so I can let mechanics know.
Thank you 😊
Hi all, hopefully someone still looking at this thread, I’m having similar issues with van, although it’s a pretty nasty ‘whoosh’ kind of noise that comes from around the turbo area. Does not drastically affect performance as has been described here before - I wouldn’t call it a limp mode, just sounds as if an air flow is having problems somewhere. Happens when coming off the gas at high revs in top gear eg downhill motorway stretches and sometimes when starting and pulling away in 1st. Started about a year ago and got worse, so far changed air mass meter and today fitted brand new intercooler unit having checked all the pipes and finding no damage. Old intercooler was weeping a bit of oil into the engine bay and mechanic had said intercoolers were an issue with LTs. New one on, Started off and pulling away it ‘whooshed’ again, but when got engine up to temp after a few miles it stopped. Fuel filter was changed last spring, van done less than 10k on BP ultimate since then. Its my camper so I’m dying to sort this out as heading to Scandinavia in August - any suggestions? I’ve ordered a replacement temp sensor for the top intercooler pipe to see if that works, really hoping it’s not turbo issues as that would spoil my summer trip. Otherwise van is totally solid with lots of new parts fitted. Any suggestions would make my day.
FINVW35
25-10-2018, 08:58 AM
Hello all. I have a yr2000 LT35 camper van with I believe the ANJ code engine. It is low on power and definitely not running right, looking for some help on diagnosing before replacing any parts.
Symptoms are general slugishness (i.e. struggles to get up to 65-70 and when you hit a hill really stuggles), van is not loaded heavily just the usual camper conversion stuff. Doesn't seem to 'reset' when turning off and on again and is generally underpowered all the time.
One thing I've noticed is that in first it seems to pull OK, then in second it starts to pull alright but then the turbo seems to cut out just when you're in the power band - it consistently does this. In 3-5th gears not much pulling power at all.. very flat - in fact it is quite tedious to drive so I'm hoping there is something I can do about it and I'm sure it should have more power!
Could it just be the AMM as previous posters suggest? Any other tips on diagnosing? I haven't had any fault codes read yet. The van has only done 60,000 and not noticed anything else wrong with the engine. Done the simple checks of pipes and leaks, can't see anything obvious missing, cracked etc. on the intake side.
Thanks for any help.
edit to add: I'm new to VW vehicles, what's the best way to identify exactly which airflow sensor I need for my vehicle? Call up the dealers with chassis number or is there a better way? :-) Are the Bosch ones shown as genuine on ebay the right ones or best to go direct to VW?
Old topic but..
I have the exact same symptoms with my LT35, also ANJ engine. Did you find any solution?
Did you get any codes? I have tried 2 different OBD2 reader with 2 different adapter cables but can't get contact to ECU. Hopefully it's something simple like AMM and not the turbo.
Thanks
Old topic but..
I have the exact same symptoms with my LT35, also ANJ engine. Did you find any solution?
Did you get any codes? I have tried 2 different OBD2 reader with 2 different adapter cables but can't get contact to ECU. Hopefully it's something simple like AMM and not the turbo.
Thanks
Hi,
Yes, in the end it was the inlet manifold gasket that had a tear. I got a new one from VW for £9, but I had to do it twice before I got it right - it’s really important to make sure the faces either side of the gasket on the block and manifold are super smooth and clean. Now I get the occasional tiny little sound but at least I know if it gets too bad I can do it again. The manifold is a bit of a bugger to get off - it’s only 8 bolts but the last one is easier to reach from inside the van through the maintainence cover. Whilst you’re there, have a look at the actuating rod on the air flap control until for the EGR - mine was knackered the plastic rod was loose on its connection so I got a second hand one off eBay and it made my turbo boost a lot harder! I have some pics of the job if you like I’ll post them.
FINVW35
25-10-2018, 10:15 AM
Hi,
Yes, in the end it was the inlet manifold gasket that had a tear. I got a new one from VW for £9, but I had to do it twice before I got it right - it’s really important to make sure the faces either side of the gasket on the block and manifold are super smooth and clean. Now I get the occasional tiny little sound but at least I know if it gets too bad I can do it again. The manifold is a bit of a bugger to get off - it’s only 8 bolts but the last one is easier to reach from inside the van through the maintainence cover. Whilst you’re there, have a look at the actuating rod on the air flap control until for the EGR - mine was knackered the plastic rod was loose on its connection so I got a second hand one off eBay and it made my turbo boost a lot harder! I have some pics of the job if you like I’ll post them.
Actually I just looked my inlet monifold and seems that there might be a leak.. It would be great if you can post your pics, either here or mail me jussi@kotivalo.com
Thanks!
No worries, have emailed you pics. I gave everything a good clean up while I was there! Let me know if it works.
I sent you some pictures yesterday but they bounced back, was the email address correct? I’ll try and upload some with my computer tomorrow when I get a chance if not.
FINVW35
29-10-2018, 01:58 PM
I sent you some pictures yesterday but they bounced back, was the email address correct? I’ll try and upload some with my computer tomorrow when I get a chance if not.
Email should be correct. How big they are? Maybe size limit caght them..
neilapms
05-02-2019, 11:39 PM
Hi Iv a lt35 2.8 tdi same problum. Have the van from new 06. It happened about five years ago and I ended up changing the Injectors. All good after that. Started hapening again good Afew weeks ago ended up being aloos conection on the sensor on top of injectors. Took the conection apart and sliped a thin piece of conector strip in the female side ans reconected it, Going great ever since and that was after getting it tested all over the place but just got lucky on a sunny afternoon with a bit of time on my hands. Hope this helps
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