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[henryd]

When I do get it off, what do I do, just pour oil out? Clean it, if so what with?

Land Rover TDis are prone to blocked up intercoolers. Two guides here (usual caveats apply about stuff you read on the internet...)

http://forum.lro.com/viewtopic.php?t=1811&highlight=intercooler+cleaning

http://www.discovery2.co.uk/intercooler.html

So solvents like white spirit . Ta

Brake cleaner is pretty good too,it'll dry without leaving any residue,make sure it is dry though before starting up as it's like rocket fuel to a diseasel 

[Marks DTM Calib]

Do these engines not self bleed?

Most definitely not. Attempting to start with no fuel quickly shags the pump, as the diesel fuel is the only lubrication.

Thats true of all diesel pumps.

[Marks DTM Calib]

Do these engines not self bleed?

Most definitely not. Attempting to start with no fuel quickly shags the pump, as the diesel fuel is the only lubrication.

Ah ok 

I guess theres not a tank pick up pump in these then.....as thats when i discovered the passat will start if you keep cranking after it had to have a new tank pump....

I believe there is a lift pump, but airlocks are problematic.

No lift pump on VP44 setups and hence the issue in bleeding and hence the recommendation I have made for years about ALWAYS fitting a priming bulb to these setups (from any of the manufacturers).

The diesel also cools the power transistors in the pump electronics.

[Marks DTM Calib]

when was the last time the inlet manifold/swirl flaps cleaned out, i found it made a huge difference to mine when it was cleaned , messy job but well worth it to get the power back and helped reduce turbo lag a bit.

Probably never. TIS implies that the pump has to be bled with KM948 once the injection pipes have been off, which means its not something I can currently do.

Not needed.

Idealy you would have a priming bulb in the fuel filter fuel feed line but, you simply crack the high pressure injector pipes and crank for short intervals with half plus throttle applied until you see fuel from the lines. Then nip up and away you go.

ive tried this way on 3 different cars with the dti engine and cracking the high pressure pipes never seems to work for me

Interesting, never failed for me as long as its only the high pressure lines you touch.

If you touch the pump feeds or drain the pump then its a big issue

Do these engines not self bleed?

I know on the 1.9 trafic i had, there was a bleed bulb by the pump to bleed it (rubbish fuel gauge on these, meant i ran out of fuel a few times  )

But on the 2.0 passat, you just seem to have to crank it over and it will start after about 30secs ..

Comon rail setups (2.0 crapat) have a lift pump, what you should do is turn the ignition on and listen for the pump, it will time out after 10-20 seconds or so, then ignition off, repeat 3-4 times and then start.

[TheBoy]

Intercooler cleaned with carb cleaner. What a R-sole of a job to get the frecker out 




Doubt it'll make a difference as I couldn't get anything out, and it felt nice and light.  I did take it for a quick spin, but every retard was doing 30-40mph around all the lanes.

[chrisgixer]

Look. Gay gloves

[TheBoy]

As we were out and about in it yesterday (needed the boot space), we were joking about it's (lack of) performance, and as we got onto the motorway, we wondered if it would get to 70 by the end of the slip road, neither of us thought it would. But it did

So I kept my foot hard down (yes, I know Mr DTM, but gives more consistent results) for several miles just to see if a good thrashing would help clear its throat.

Speed was more than I'd seen out of it before, esp after a long downhill section, but after a while, and more prominent on uphill sections, you could feel the power surging in and out, very rhythmically, about once every second or 2.  I'd say this was the same sensation or the surging that MDTM felt driving around at low revs, that was initially cured with a replacement, pattern MAF (that low speed surging has returned slightly, nowhere near as bad, when labouring around 1500rpm). As per the low rev labouring surging, lifting throttle slightly, and it went.

Does that shed any more ideas?

[Omegatoy]

Hmm just a possibility here,
sounds like its been tootling around town at low revs most of its life and always run on cheap supermarket fuel? try couple of tanks of "super diesel" see if it helps,also add a 500ml bottle of synthetic 2stroke oil on every fill up, will lubricate the pump much better than crap diesel sold now

[Jimbob]

Theres several of us on here adding 250 ml 2 stroke to a tank of diesel, makes a noticable difference.

[TheBoy]

Hmm just a possibility here,
sounds like its been tootling around town at low revs most of its life and always run on cheap supermarket fuel? try couple of tanks of "super diesel" see if it helps,also add a 500ml bottle of synthetic 2stroke oil on every fill up, will lubricate the pump much better than crap diesel sold now

I don't think that's the problem here, I think there is a genuine fault going on. Well, faults. Turbo was definitely shagged. MAF was definitely not reading correctly, probably contaminated by the amount of shite thrown forward into the intake from the turbo when coming off the power

[TheBoy]

I have tried branded fuel, but not the V-Power types. Will try a couple of gallons when next empty. Will also try a spot of 2 stroke afterwards

[Stemo]

Where is this thread going? The original title says that a GM 2.0 Dti is lacking power. And? What's new?

[tunnie]

After all the power jokes he's made about my 2.2, mines a Monaro VXR in comparison to his battle bus. 

 

[Andy H]

Does it smoke when you give it full throttle?

Are you able to read live values for
- manifold/boost pressure?
- quantity of fuel injected?

My thinking is that if it is injecting enough fuel but not producing enough power then it will smoke.

If the ECU is asking for maximum fuel but there is no smoke then that might point to a pump problem.

If the ECU isn't asking for maximum fuel then why not?

[TheBoy]

Where is this thread going? The original title says that a GM 2.0 Dti is lacking power. And? What's new?

No, this one is really lacking power. Its the slowest thing I've ever owned. And I've owned a Nova