Nissan Patrol TD42 problem.

Try cleaning the fire wire mesh filter located on the inlet to the fuel pump.

Cheers

My old GQ did the same, it will be injectors breaking down under load, how long is it since his injectors have been done? they should be done every 100000.

Hi,
Thankyou for the suggestions put forward , we will start with the filter and go from there I think.
Judging from the rather average condition of the vehicle I doubt the injectors have ever been serviced. Maybe we could try some injector cleaner??? But my thinking is that they have done their share of duty at 230 km.
Thanks again.
Alan.

had same trouble on my gu 4.2. no power over 1500 rpm ,. was small filter on inlet pipe to injector pump .. not shown in workshop manual . remove pipe with care then insert a cotton bud into injector pump inlet and remove small gauze filter. dont drop it , wash in thinners and reinsert .. no further problem since now 210000ks regards bill

Was it bled properly after the filter change,I found on mine it has to be bled at the filter and also at the injector pump. Good luck.

It could also be a slight air leak somewhere in the fuel system. EG: when the fuel filter was changed recently, were the rubber O rings done too? If not, and there is even the slightest possibility of the system having an air indiscretion, then it will perform poorly under load.

For this reason I swear by the fitting of a electric lift pump....the closer to the tank the better. It will ensure a positive fuel delivery and save the injector pump from the arduous task of lifting the fuel as well as pressurising it and pumping through the injectors.

Roachie

Hi,

Thankyou for further replies.

After much sweat, swearing and a day of fixing the GQ lives.

Cutting a long story short the long range tank had over a cupfull of crap n sludge in it which would not drain with out removal of the tank. Had to clean lines, filters etc.

It was a loooonnnngggg day.

Again thankyou to those who offered helpfull opinions.

Regards alan.