Thread: 2003 disco fuel problem?

Does sound like you have maf probs. Have you disconnected it and run the car? What "aftermarket" pump did you fit? Was it a direct replacement in the tank? Sounds like you may have a bad connection after playing with the temp sender.
Cheers Scott

Thanks Scott
Yes I have done the maf test.The pump was a direct replacement,spectromatic-I think.The little clip on the sensor went west ages ago but I wired it on. It seems a good connection.I have ordered a new sensor just in case. I have also changed the injector loom a little while back as a precaution at the time.
John

Fuel filter?, air bleed off in filter housing?, injector copper washers?, does the pump sound like its cavitating? , if not check for delaminated intercooler hoses , especially the 2 on the hot side of intercooler
Cheers

Thanks Discorevy
A new fuel filter and silicone intercooler hoses have been fitted.The pump is noiser than the origional but does not sound too bad.I ordered an air bleed off valve today after reading about it for the first time and will fit it as soon as it arrives. This problem has been driving me nuts and it probably [hopefully] is something simple like that. How do you tell if the injector washers need replacing.
Thanks John

Normally the pump will make a sound akin to a strangled cat , but another way to test is to brim the fuel tank , then run the motor while checking for air bubbles , if your old pump was stained/blackened when you removed it that is a good indicator as the carbon from combustion will make its way back to the tank when the washers are leaking

From memory the old pump was clean.When I get it started properly I will check for air bubbles.It will take about a week for the new parts I ordered to arrive and I will see how it goes Then
Thanks John

I had a similar problem with the 3000rpm limit. Check your hoses from the inter cooler pipe to the waste gate modulator. I had a crack at the base of it. Some new vac hose in there and I'm back to normal.

The spectromatic is a good thing. I have read various posts on this forum indicating that it is as good as OEM.

Originally Posted by sharmy

Thanks Scott
Yes I have done the maf test.The pump was a direct replacement,spectromatic-I think.The little clip on the sensor went west ages ago but I wired it on. It seems a good connection.I have ordered a new sensor just in case. I have also changed the injector loom a little while back as a precaution at the time.
John