At what revs should the turbo kick in?

[arnosvale65]

Originally Posted by Ken Lion

What's the situation with your EGR Steve?
- by-passed? - cleaned? - never touched?
If it's not been by-passed you might want to have a look at that before you spend serious dosh on a Maf.

I don't think it has ever been touched according to the History. I went for a drive today and in the lower gears she seems OK. The main problem is when I take my foot off in 5th or 4th and then accelerate again. She is very poor until she reaches 2000rpm, then woosh! Off she goes.

[Ken Lion]

Originally Posted by arnosvale65

I don't think it has ever been touched according to the History. I went for a drive today and in the lower gears she seems OK. The main problem is when I take my foot off in 5th or 4th and then accelerate again. She is very poor until she reaches 2000rpm, then woosh! Off she goes.

Well, cleaning out the EGR is a cheap first step before spending serious money elsewhere - but it's a messy job.

A quicker/easier way may be to deactivate the EGR by pulling off and stopping-up the vacuum tube (with a suitable screw). But if the EGR is seriously gummed up and restricting air flow from the turbo then it's not improving anything (see thread from Eddiemc05 http://www.the75andztclub.co.uk/foru...d.php?t=222086 ).


There's a great picture by picture how-to thread from Arctic Steve about removing / cleaning the egr (and manifold) if it's new to you:

http://www.the75andztclub.co.uk/foru...d.php?t=104653

[Avulon]

Originally Posted by arnosvale65

I don't think it has ever been touched according to the History. I went for a drive today and in the lower gears she seems OK. The main problem is when I take my foot off in 5th or 4th and then accelerate again. She is very poor until she reaches 2000rpm, then woosh! Off she goes.

Without knowing your experience with cars - i.e. what you've driven before. 'very poor' could mean a wide variety of 'not much go'. To be honest you won't get much 'go' below 2000rpm if you shove your foot down hard in 4th and 5th gear. It'll pull about as well as an asthmatic 1.8 (nasp) at best. Any MAF problems and the response will be a lot worse. If you can test the MAF or get to a T4 operator who can take the readings for you then get it checked. Bear in mind that 1500rpm in 5th is 50mph, and you won't get any real acceleration at that speed in top gear at all anyway. Shift up a 1000 rpm and it'll go just fine (between 1700 and 2400) don't be afraid to rev it a little - red line isn't until 4600rpm and you'll never need to take it over 3000 unless you want to . However you should get reasonable engine response from as little as 1000 rpm in the lower gears. (1,2,3).

[arnosvale65]

Originally Posted by Avulon

Without knowing your experience with cars - i.e. what you've driven before. 'very poor' could mean a wide variety of 'not much go'. To be honest you won't get much 'go' below 2000rpm if you shove your foot down hard in 4th and 5th gear. It'll pull about as well as an asthmatic 1.8 (nasp) at best. Any MAF problems and the response will be a lot worse. If you can test the MAF or get to a T4 operator who can take the readings for you then get it checked. Bear in mind that 1500rpm in 5th is 50mph, and you won't get any real acceleration at that speed in top gear at all anyway. Shift up a 1000 rpm and it'll go just fine (between 1700 and 2400) don't be afraid to rev it a little - red line isn't until 4600rpm and you'll never need to take it over 3000 unless you want to . However you should get reasonable engine response from as little as 1000 rpm in the lower gears. (1,2,3).

Thanks very much Avulon. I have experience of the Ford 2.0tdci engine fitted to an X type Jag which went like the proverbial, the 2.2 even better. My wife has a Laguna 111 2.0 cdti which is very quiet, great on fuel and goes well. I think I am not giving it enough revs and expecting it to take off in too high a gear as you suggest, mind you the Laguna tells you when to change up or down. The downshifts always coming way before I would normally.
I have just ordered an EGR valve by-pass from DMGRS. My X types suffered terribly with problems with the EGR. I don't know if you have ever read any of Diesel Bob's articles about different makes of diesel engines but it is well worth a look.

http://www.dieselbob.co.uk/

He doesn't have a good thing to say about Ford's 2.0ltr tdci

[James.uk]

Nothing works well when over geared (i.e. in too high a gear) even a bicycle struggles to accelerate from low speeds in top gear..

For the sake of engine longevity, you should always try to keep enough revs on to allow your engine to perform well...

Flogging an engine in too low a gear puts severe strains on all parts of the drive train including the gearbox...

Diesel engines thrive on hard work, so give em bags of welly innit...
...

[Avulon]

Originally Posted by arnosvale65

Thanks very much Avulon. I have experience of the Ford 2.0tdci engine fitted to an X type Jag which went like the proverbial, the 2.2 even better. My wife has a Laguna 111 2.0 cdti which is very quiet, great on fuel and goes well. I think I am not giving it enough revs and expecting it to take off in too high a gear as you suggest, mind you the Laguna tells you when to change up or down. The downshifts always coming way before I would normally.
I have just ordered an EGR valve by-pass from DMGRS. My X types suffered terribly with problems with the EGR. I don't know if you have ever read any of Diesel Bob's articles about different makes of diesel engines but it is well worth a look.

http://www.dieselbob.co.uk/

He doesn't have a good thing to say about Ford's 2.0ltr tdci

I also think that if your diesel is 115 then it's going to feel sluggish next to any of those others you list, the 135 tune is much more driveable.... the 160 is best though as the turbo boost is felt earlier in the rev range. Sounds like the laguna is a 147 so will be way quicker than a 115 (which is carrying an extra 100kg as well). Give it more revs and get the MAF checked. If it's still too slow then get the 160 map on it.