Good afternoon,

I have a 1999 TD5 Land Rover Discovery 2 that broke down on me on holiday and now refuses to start.

The fuel pump got quite noisy and the sediment warning light came on, lost all power soon after and the engine cut out.

I replaced the fuel filter and purged the fuel system a couple of times and started with no real issues apart from the fuel pump was still noisy.

Twenty or so miles later lost all power again and engine cut out and would not start, to cut a long story we got recovered home and on closer inspection the fuel pressure regulator was leaking fuel down the right hand side of the block and bell housing. It has just under half a tank of fuel in it.

I have taken out the fuel pump and gave both of the gauzes a clean as they were pretty dirty.

So I have replaced the gasket and cured the leak however it still refuses to start, the fuel pump is back to normal and I can assume is pumping as I can here it humming away during the purging process. I can hear a hissing of air from in or around the head when the fuel pump is running through the purging process, is this normal?

In the past year I have replaced the injector harness and there is no oil present in the red plug of the ECU. It has had a replacement fuel pump with the past eight months, so I am confident I can rule them out and It is regularly serviced.

My question is how do I diagnose what is wrong first, as I don’t want to just start replacing perfectly good parts, which clearly is a waste time and money. I have read many of the threads regarding this issue and are not really sure what to tackle first.

I am in Blandford in Dorset and would appreciate any help and advice please.

if the fuel leak was bad it might have contaminated the crank sensor so take a look at that one... a tester would be great help to see if there are any fault codes... if no fault codes it means it's fuel supply/pressure issue cos it's not covered by diagnostics

that hissing sound near the engine diring the purging sequence is normal

Ok thanks for you quick reply, ill have a look at that.

How difficult is it to get at that crankshaft position sensor?

finally got it out and it was well shi**ed up with fuel and crud, gave it a clean and its still the same just cranking over.

Got a replacement on order anyhow, not got a compliant reader to check fault codes, is there anyone local in Dorset who fancies helping me out by reading them?

Fery,

Thanks for your input and diagnoses, absolutely spot on.

It was the crank shaft pressure sensor after all, ordered a second hand unit just to see if it was at fault, just ordered a brand new on and my second hand unit will serve as a spare.

Once again thanks for your time

well done, just be aware that's not a pressure sensor but a speed and position one

My mistake, type O.

just incase anyone else has this sensor problem ive got one say in a cupboard doing nothing , im never going to buy a disco 2 personally so if any one need it for the price of the post its here .

Festerer said:

just incase anyone else has this sensor problem ive got one say in a cupboard doing nothing , im never going to buy a disco 2 personally so if any one need it for the price of the post its here .

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ill take it off your hand please, can you PM me?

myjosef14 said:

ill take it off your hand please, can you PM me?

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Sure thing , pm me your postal address