Smoke is coming from the dipstick, 6.5L turbo diesel

KB
Welcome to the USA Fixya.com forum!
we don't have KB here. sorry.
History.(1 line, all bad)
2005 - Isuzu dealers in the United States have only one model, the Ascender SUV,
and guess what?, it's a rebadged GM car here, no more cars here, real isuzu.
KB are in Africa, Australia and in EUROPE not here in USA. so no books here to cover it.
nor is it covered here, at our great ,Mitchells online.

The KB300 is a 2.999 liter diesel, some are TDI. (most?)
and is called the 4JJ1-TC. (t= turbo)
That is direct injected, (means check turbo , and scan it first) after checking fuses.
The Check engine light on, same deal.
Check filters. for fuel and air.
2004 the D-max , family , introduced the DDI-ITeq common rail diesel engine.

So next time post your country.
And all symptoms.
power loss?
smoke?
Noises?
warning lamps.
etc.

How much smoke is comming out. Most diesel engine oil has zinc in it, that's the only difference unless it looks like a chimney I wuld not worry about it...

run fault codes and look for EGR valve and pcv valve faults. Black smoke is unburnt diesel so it may be the injectors need attention. If it is a turbo then check the oil lines to the turbo and check turbo operation as it may not be producing air pressure for the engine.

It is a clear case of the glow plugs malfunction. It had happened with my neighbor who tried to start his diesel focus one day.
Even jump starting with another battery didn't solve the starting problem.

You could also check the EGR valve for damages and if you want to save a couple of bucks, then go in for used parts for the focus from Good used Focus Stuff

check your turbo again. also check whether the waste gate valve is working by testing it with vacuum tester.Or check if any flex hose on turbo or inlet manifold has not cracked or sheared and cause a leak and that is why you might have low power with lots of smoke.

Is it a turbo diesel? It sounds like the turbo is shot. Black smoke and runs like **** a pretty sure signs.

I'm affraid it's the turbo that is faulty, and it's not a cheap job. the turbo has a oil pipe going to the turbo to lubricate the turbo bearing . When the bearing wears out the oil enters the engine and burns causing to smoke. Good luck

check your glow plug relay! located on the right side head

Clean intercooler.Full of engine oil

Check the breather filter, a quick test is pull the oil dipstick and rev engine if oil rises up dipstick replace breather filter straight away as it will blow engine if not