Welcome to the Nissan Patrol forum. To post a question and to see less adds on the forum then you will have to register
first. We are an easy going friendly forum so join in the conversations and feel free to ask any questions.
Become a forum sponsor for only $20 and see no adds with faster page loading times and many extras benefits.
Your mechanic , isn't far of around $3k for the work.
When I was in that scenario brand new genuine Bosch pumps were $1200-1300.
Injector lines which need to be replaced were around 200-300 together with benching fitting and calibrating to the ECU.
For what it's worth mate. I used to own a 2009 3l crd. Since day 1 I've had small "sweat" of diesel from some where on the common rail pump.
It was clearly visible. I've had it looked at and got told not to worry about it. It did not impact performance. I still know the guy who owns the car and to this day, the pump is sweating diesel and the car is still going without a hiccup.
In my honest opinion your loss of uphill power is nothing to do with the pump. If you had pump issues you would know about it way before you got to that hill mate...
HOWEVER, in saying that, like others have said , I would not go outback if car was not tip top. Including a sweating IP.
Mudski is spot on. Check your boost. Factory boost control is shit. I repeat , Shit! It's a fluctuating boost yoyo. Once I tamed the boost with a needle and Dawes valves , the car was an entirely different beast. Boost was smooth and linear with the foot pedal and predictable.
There is also a rail pressure relief valve which can release all diesel pressure back to the return lines under some load circumstances ... Once this valves pop for the first time , they tend to keep doing it until replaced. I had similar symptoms on my crd and this valves fixed all that .
This possibly could be your issue too.