revs dying

Hi all,

I had a similar problem to this last year, where the land rover will tick over ok, but as soon as I gave it some revs it would lose power, judder and then start to tick over again, fuel filter change fixed it. I haven't done many miles with the new air filter and its happening again today, (when its deep snow and I really need FWD!) I can keep the acelerator in one position say 4000revs and it will slowly reduce revs until its almost cutting out. The only thing that has changed recently is I've filled up with OPTIMAX deisel instead of the standard deisel as shell had run out. Could that have any effect?

Its a E plate 90 with the 200tdi engine.

Thanks in advance.

check you have good clean airless flow from lift pump ,could be air getting in /blockage ,poor lift pump ,even blocked filter again if tank had a lot of water or muck in

Hi , i had similar problem , which came down to two problems , weak lift pump and a jelly like algae in the fuel tank , looked like scrambled egg . bunged up fuel lines

Ok. Thanks both for the replies. Now having trouble with the bonnet release, once I get in I'll investigate further.

Is it possible that when the weather is cold the diesel 'waxes' a little and restricts the fuel supply?

I'm having similar problems with mine today -18 here this morning...

I had very similar symptoms when i ran out of diesel one day and ended up with a shed load of air in the fuel system. You don't get any power because the engine runs really lean when you start to rev it. As JM said, check you haven't got any leaks in the fuel lines anywhere.

Got the AA involved this morning and the mechanic has had a number of defenders of his own. Result! Once he had sorted the bonnet release he started by bypassing the fuel filter and fitted a small see through filter and there was too much air mixing with the fuel. so it wasn't the fuel filter. Then he ran fuel straight from a jerrycan to work out if it was a problem with the fuel lines I think. He traced the problem to a sediment filter located underneath and just behind the drivers side wheel, once that was off it was full of muck and then it was cleaned out and put back. Running smoothly now.

Now I have another small problem. His advise was to replace the sediment filter, which is a straight forward job for even a novice like me. Tried to order the part through m&m 4x4 and they only had a sedimentor for £24, the mechanic had said its a £3 part. Googled it and come up blank. Could it be called something else?

Bypass it with a clear inline fuel filter pence per filter and you can see what's happening in your fuel line )