p38 diesel glow plug relay

tomcat59alan said:

How much fuel do you have in the tank? When I had less than a quarter tank it was a b*stard to start, in tank fuel pump was knackered

Click to expand...

The original factory pumps, at least the ones prior to 1999, had a fairly strongly sprung NRV in the pump. It is difficult for the injection pump to suck fuel past it if the tank is low. In trying to do this the injection pump sucks air past the O'rings on the filter. Lots of problems. New OEM pumps do not have an NRV in them or at least the VDO supposedly genuine ones don't. So the engine will run happily if the pump fails. Loss of power maybe evident though. Maybe no NRV because after 1999 the lift pump also runs on cranking as opposed to earlier vehicles were the pump only ran with glows or when engine was running. So if you fit a new lift pump without an NRV to a pre 1999 vehicle it maybe worth considering fitting a primer bulb just before the filter. Handy for priming the system and also acts as a NRV.

Guess I got one with a nrv, never had a problem since.

tomcat59alan said:

Guess I got one with a nrv, never had a problem since.

Click to expand...

Yep my new one is good even without the NRV. Don't know what the cheapy cheap ones are like.

vtrman said:

in-tank pump ok ile check that also bleed off pipes are they the ones from the injectors also what is foobared thanks ps if i switch ignition on should fuel bollock out the fuel line if taken from the filter if not dose that mean fuel pump knackered thanks for all your info and help

Click to expand...

Old post I know, but just for the sake of it; Foobared is derived from the millitary acronym FUBAR - F***ed Up Beyond All Recognition