Thread: 2002 Disco not starting, have fuel and spark

Originally Posted by Giz11

The saga continues.
I checked the fuel pump and it is working. I then had some one turn the motor over whilst I held in the schraeder valve and no fuel come out. I thought it was meant to . So does that mean a blockage in the fuel pipe ?

If there's no pressure the pump assembly may have burst a high pressure hose connection after the pump. It shouldn't take too long to lift the load space carpet and extract the pump assembly to look at it.

Took the pump out, seemed ok visually. When I took of the fuel pipe it was pressurised but not much fuel came out, about an egg cup full. Th pump motor works and with the pump back in and the fuel pipe still disconnected petrol does come out of the pump outlet.

Originally Posted by Giz11

Took the pump out, seemed ok visually. When I took of the fuel pipe it was pressurised but not much fuel came out, about an egg cup full. Th pump motor works and with the pump back in and the fuel pipe still disconnected petrol does come out of the pump outlet.

Rig a pressure gauge at the pump then give it a whirl. Or just plug the outlet and listen for the pump loading up.

It should **** out of that schrader valve.....

New cam sensor in today and still no joy. So it has to be fuel. There is a smell of fuel which I assumed was just the unburnt fuel coming out of the exhaust but maybe there is a leak somewhere. I plug the fuel pump and listen to it load up.
Ill also see if I can get a pressure guage for the schraeder valve.
At least I changed the water pump today and all the hoses so that was positive.

Have known fuel pumps and fuel pump relays that worked well enough to prime or switch on but failed under sustained load.

Found the Schrader valve after taking off the intake manifold.Getting fuel at that point. Tested the pressure and the pump holds pressure. So I have regular spark, although doesnt look that strong, fuel, air. Tomorrow I will check timing. Put in a replacement ECM and did not even get spark, went back to the old ECM. Probably need to code it and all I have is a Nanocom so I need to work out how to do this. Any ideas given that the crank and cam sensors have been replaced and so have the coil packs and the HT leads.

Ah you poor bugger, must be exasperated.

Timing is all that’s left but nothing that you’ve said gives any reason for it to be out. Almost impossible.