Pinging Jackaroo

I had that with my Monterey. It started at about 50000km.

Dealer did an off car injector clean at the 60000km service and it has been fine since. They told me not to bother with an on car injector clean as it will need to be done again sooner and may not be effective if the injectors are very dirty.

Am now putting in an injector cleaner every 5000kms to keep it clean.

earplugs? cheap and re-usableLaterally Literal
Seriously Cerebral

My Jack. is coming up to 3yo in Feb. and I shouted myself an extra 3 years warranty. This cost $1200, but from the above, sounds like it might be well spent. My Jack has not missed a beat since new, but you never know.Jack at sleep

VWR do you realise how serious pinging is - and what causes the noise? Basically it's the fuel/air mixture detonating so early that the explosion has spread in the combustion chamber before the piston has reached top dead centre. When an engine is operating correctly the plug fires before top dead centre and the explosion spreads in time to push the piston down after passing TDC. With pinging (also called pre ignition) the force is applied too early and if you can imagine the unhappy relationship between your pistons and the explosions you wouldn't think premium fuel or additives were too expensive. Others have already said, quite correctly, that it can result in a holed piston. Seems like it might be a common problem with Holden as many years ago I had an HQ which did it a lot - engine replaced at 70,000 miles though. Try fiddling with the timing - retard it (make it fire later) and get onto that premium fuel OR get a Prado or Cruiser - they cost more but they don't suffer from such very basic problems. By the way the dealer saw you coming - there's no way that decarbonising was necessary at such low mileage. Hope he didn't charge too much!

VWR have a look here, http://www.prozone.com.au/pro/promain.htm ..... Worth a try 90 day money back , sold at repco.

Gday VWR
I'm working out in Saudi and own an Isuzu Trooper. Same car as yours. A little bit older and 150,000 on the clock.
Exact same problem. Mate has same car with same problem.
Decided to switch oils. Regular change at 5000 km or less. Has made a hell of a difference. Am usingbleeps but I am not sure if you can get this oil in Oz? Mate did the same about 10,000 km ago and has noticed a big difference also. Doesn't sound like a diesel anymore!
Have seen a cutaway of the engine in the Isuzu dealers shop. The valve set up is an odd one.
Best of luck,
Cozza.

Sorry Savvas. The website doesn't seem to like the oil brand name because of its close resemblance to the f word. I'll try again F---U---C---H(that's H)---s.
Hope this works!!

And its pronounced f---u---c---h---s as in CHOOKS not as in DUCKS!!!!!

VWR ... the hinges are adjustable. You need to take the trim cover off the back doors and where the hinges bolt to the door itself is the adjustment point. You lossen the bolts and then adjust the position of the door.

However, I'd suggest you find a good panel shop to fix it for you instead of the dealers unless of course the dealer has its own panel shop like some do.

Also, be very careful if you decide to do this yourself as those doors are really heavy. You will need one operator to hold the door while another loosens and tightens bolts again.

Hi VWR, Something i have found with the v6 jacks is that their fuel system is fairly sensitive to any restriction causing pressure and flow reduction, I personally believe that the fuel filter is too small in size and blocks enough to reduce flow fairly easily, I change the filter on mine every 10K because it is cheap and the same filter as v6 commodores, I find a noticeable improvement in performance and smoothness after i change it , and have recently decided that i will change the standard filter for a much larger ryco unit with the same sized barb fittings, although i will have to modify the mounting bracket to suit.
My Jack will only show slight hesitations and a slight power drop, no pinging is evident, But my Manager also has a 02 jack v6 and has been plauged by pinging problems since new, with the vehicle in and out of the dealers many times, no fix from them. I told him to change the filter and see how it goes, the next day problem solved !!!! I am also considering fitting an adjustable pressure regulator on the fuel rail to bring the base pressure up slightly, and see if this helps. Because the computers in these are self learning they will adjust the pulse width of the injectors to allow for the higher delivery pressure.
Also F_U_C_H_S supersyn 5W 50 fully synthetic oil is magic in these engines........

Sling in a new filter and see how it goes, will only cost $10 and 10 minutes..CheersMoo... everyone knows what a Jackaroo looks like :-)