Hi,

I've got a 96 TDI Disco and some trouble with the engine.
Sometimes it feels like the engine is not getting diesel. You drive along and everything is fine then after a sudden rpm's go down and the car slows down. I put the foot on the throttle nothing happens. I take the foot off the throttle car get's slower and slower and after a few seconds everything is fine again.
I was driving 5000KM no problems then it started doing it within 300KM it did it 3 times.
I have the car at the repairer at the moment but they can't find anything. They had a look at the injection pump and if there was something in the fuel tank but they don't know what it could be new fuel filter was done as well.
I can't reproduce the problem. It just happens while you're driving.

Any suggestion would be great.

Matt

Hi Matt.
The lift pumps have been known to generate air and cause those symptoms. It may be worth checking the lift pump and connections first as these are relatively inexpensive compared with the injector pump.
Kind regards,
Allan from LEGS.

They could not find anything.
On my invoice it says:
Check in tank fuel pickup
check fuel delivery lines
part dismantle fuel injection pump, clean & lubricate fuel volume piston

That's it

Matt

Hi Matt.
Its difficult to check if a lift pump is serviceable or worn, but for the sake of approx £20.00 and if your car has done a fair mileage, it would probably benefit from a new one.
Regards,
Allan from LEGS

Thanks,
I will check how much a new one is. I'm in Australia. Car has done 185000KM but I only got it with 178000KM on the clock.

Matt

I can get one here but it's AU$165 / 66 pound

Matt