GQ starting problem

Hrm..

This is a RB-28D?

Is this when it's parked on level ground?

Have you checked;

1. Glow-plug operation?
2. Glow-plug heating temps?
3. Fuel pump pressure?

If it's starting and beltching smoke, then it's pretty-much odds-on that the glow plugs aren't functioning. A mates 2.8 was doing the same - the computer died... Grrrr.

Fuel pumps do have a return line on them and are supposed (!) to have a pressure regulator built into them to stop drain-back (both of the lines are below the fuel line too) but it doesn't stop them if the valve nackers-out in them!

Chris-ford,

Its a 1997 2.8 turbo diesel.

Only used to do it if left facing up hill and for a few hours or over night.
The car now starts fine so I guess that maybe the fault may have been in the lift pump on top of the fuel filter.

With regards to the glow plugs they are allworking O.K. but during the cooler months I was having a similar problem with black soot blowing out of the exhaust pipe and rough idle when it first started of a morning. But nissan told me to wait untill you hear a second click after the glow plug light goes out and I must say no more black soot or rough idle. I should say that the second click is very faint and on a very cold morning may take some time.