99 jackaroo 3.0 tdi- oil pressure problem

At x-mas I had problems with the oil presure which shut off the engine via the engine management system. Turns out the oil pick up arm had fallen off. Lucky for me it was covered with the extended warrenty I umed and Awed over untill the all preseient wife said to do it. By the way I have a 2000 diesel jack.
This problem of yours sounds very similar to mine only my engine cut out when I drove down a hill and there was no guts to it when going up hill.

Cheers

Simple things first,
Oil at corect level
Correct oil dip stick fitted, if its not correct length, your oil level will be incorrect.
Any obvoius large oil leaks
Oil pressure sender, clean all electrical contacts, earths related to this, check wireing for breaks, damage.
Is the oil pressure sender actually working, swap with a new one to check.
Wireing behind the dash for the oil pressure guage, clean/ plug fitted correctly to the pod?
More difficult and expensive.
Are you actually getting the correct oil pressure, plumb in a guage where the sender unit fits and check it out.
Oil pressure relief valves and bypass valves in system stuck open?
Oil pick up in sump, is it still in one piece and the correct lenght.
Oil pressure in these engines also operates the fuel injectors, so on this premis if you had drastic oil pressure / flow problems it probably wouldnt start anyway.
Look at the indication system for loose / dirty /damaged plugs and wireing.
Goodluck
Guzzi

Kaziah,
I have a 2000 model and we had a similar problem,gauge not showing pressure for 20 seconds or so.We experimented with different grade oils with some luck,but i was still not happy.Took to our local dealer and they confirmed that definately had pressure and looked further.They discovered the pressure relief valve block under main filter was faulty.On removal it was found the main spool and a score on it ,dont know how .Maybe damaged tooling when manufactured.
Anyway 6weeks to get one ,fitted it and instant pressure.Ours was under warranty so cannot give cost of repair.If you dont know oil grade is super important with this engine.Do a search! I running Penrite 5w /40 as guide depending on your location.

Regards

Darryl

thanks, will be booking car into holden again and put this scenario to them also.

A recall was done in the uk for cracked or broken oil pickup pipes in the sump. This may be a possibility.