GQ down on power and idle rough when hot

[Patrol Freak]

Problem hopefully solved the bloke at West End Diesel (I think that's it) said it is some part in the IP that when it gets hot it expands and doesn't let enough fuel in. So she's getting the pump and injectors done next week, fingers crossed that's what it is.

[HammerBuilder]

Let me know if this doesn't fix it as I also have a 2.8 GQ done 320,000k's
The fuel problem I found was at the back of the injection pump theres a return line Bolt & union, in the middle of this bolt there's a gauze, What ever you do don't try & get the gauze out to clean it just get a can of carby cleaner or brakeclean & spray until no more little bits of crap come out then refit after it dry's then take it for a drive.
As for draining all the coolant & flushing the block has a 14mm bolt under the exhaust manifold at the back of the block undo this only when cold, & take the radiator out & back flush it well with your garden hose, whislt your at it get a new thermostat from nissan & also a new radiator cap for $19
If you don't undo the 14mm bolt you will not drain all the coolant from the engine as it holds about another 6 liters in the block weird I know.
Refit 14mm bolt, thermostat & then radiator then fill with coolant & what ever you do don't forget to bleed the air out at both the heater bleeder near the firewall please remeber to turn heater control to hot & if yours has it next to the battery in the top radiator hose has a white plastic sort of bleed screw.

Mine is going great now although I also did change my head gasket 2 weeks ago & also done the EGR blocking plate then went on good old Ebay & got the matching pair EGT & Boost Guages realy good & work very acurately according to dyno figures.
Now mine doesn't get over bout that white dot on the factory temp guage. compared to before when it nearly always went up to the line above that on long hills.

Hope this helps TonyD