200 tdi fuel problem ??

[muddymart]

I was coming down the a1 this afternoon,as i was going up the hill it wouldnt accelerate and there was no power at all, and got the cutting out feeling, but it just ticked over, so i pulled onto the hard shoulder .and it started revving up again, and off we went,

Quarter of a tank of diesel.

Any clues?

Thanks

[beast5680]

filter blockage? water in diesel? drawing air in? dodgy pick up pipe? dodgy fuel sender showing more than you have?
Has it died since or been ok

[muddymart]

yep, been fine since

[drmike]

Blimey I had exactly the same symptoms on Saturday and filling it up with 5 gallons of diesel sorted it so it was definitely a fuel take up issue.

As was said either the gauge is a liar and the warning light is honest or the take up isn't right in the tank.

When it's a bit warmer I'm going to use the drain plug on the fuel filter to see what comes out and maybe take the drain plug out of the fuel tank to see how much water comes out. When I did this on the RR I got over 2 pints of water before petrol.

Mike

[Richie_EB4]

The biggest problem with the discovery tank is the sender unit/pick up pipe is steel and sat in a rescess in the tank.........this means any water/mud will get stuck ontop of the tank and will rot the sender unit.

This causes the pick up pipe to rust and get VERY small holes in which draw air when running.........at a slow engine speed there will be enough diesel getting through but when you need the power and full throttle you get far more air/fuel to the filter/pump and thus reduced power.

The senders arent cheap to £115 for LR  

[muddymart]

Will check that out, someone told me the throttle position sensor backed up by this too, not sure if a tdi has these though
http://www.lrfaq.org/Disco/Disco.Throttle.Problem.html

[Richie_EB4]

The 200tdi's dont have the throttle position on them.....only the 300tdi's

So i would remove the rear floor carpet and the insection cover (5 screws) and run the engine.......listen very close and you might here the air being draw in and maybe find the hole.

Good luck but let us know if you need anymore help.

Yours will only have the gauge and pick up pipe inside the tank and NOT the little electric pump so should be a little cheaper.

[muddymart]

funny, as it only happened the once, came straight off the motorway put £10 fuel in ,back on motorway fine !! but i will check all the pipes anyway,many thanks
Martin

[Richie_EB4]

Mine happened about 6 times before i found out what it was........just kept cutting out......so tried to blead the filter and away i went.....untill i needed the full throttle and about 3-4 seconds it would just cut out.

[BrumLee]

Mine gets below 1/4 mark and dies on hills   I have had to drive the kerb to throw fuel to the o/s of the tank but now fill up before it goes below the mark.