Holden Jackaroo Diesel Problems
Holden Jackaroo 2000: What's causing the engine to rattle and blow smoke?
It could be a problem with the diesel pump, it might be a problem with the turbocharger, or it could even be an internal problem with the engine itself. Get it to a diesel mechanic for a proper diagnosis.
Turbo-diesel difficult to start
I would suggest you seek out a diesel specialist to work on your car. It is valued at about $8000 at best on the used car market, and that's when it's running well, so that should give you an idea of what to spend on it.
Jackaroo fuel consumption
On average and depending on conditions I would expect 9.0-11.0 L/100 km. There were no concerns about the cylinder heads on the Jackaroo.
IT'S not normal. I would go to your nearest diesel-engine specialist and have them check the injectors for leakage. If the injectors are leaking you might be getting a fuel accumulation, which would make it harder to start. Once started the excess fuel would burn off and be seen as smoke.