1999 Holden Jackaroo from Australia and New Zealand - Comments

Thank you for your suggestion to clean the airflow meter and idle valve solenoid. My 1999 model 3.5 Jackaroo also started stalling in the last week. The cleanup seems to have worked for now. I've owned it since new.

Last Sept, when the car had 170K km, I had a Tartarini LPG Injection system fitted. It seems to be running fine. It costs $1200 more than the standard single point system, but there is no loss of power and fuel usage is worst by 10-15%. I now get about 15-16 lit/100km. I'm happy about that. The mechanic very strongly suggested to maintain the correct valve clearances. He has installed the system on many Jackaroos and seems to have researched the Jackaroos well. Otherwise the valves can get burnt out. I also changed the oil to a lpg type, and changed the spark plugs to one level colder. I've now done about 10K km. The lpg tank fits nicely where the original fuel tank sits (usable 68lit) and a new 58 lit aux fuel tank had to be installed. This used the original fuel pump and gauge.

Apart from the occasional clutch shudder, rare lighting up of the engine check light (3 times) and now the stalling problem (which I hope I've fixed) I'm very happy with the Jackaroo.

I wrote in the last comment. After spending much money on spares that the computer noted (MAF Sensor) and new idle air valve, the problem was tracked down to a leak in the intake manifold gasket by an auto electrician.

Also another specialist picked up that one of the injectors was dripping. These were sending all the wrong signals to the MAF sensor.

The Jackaroo is now running sweetly since the gasket was replaced and the injectors cleaned.

The moral of the story here is that not all stalling problems are caused by the same things. The problem has to be diagnosed correctly, or you could end up spending a lot of money.

I have read with interest the comments relating to "check engine" light - I have a 99 Jackaroo with 275K on the clock and today the light came on and stayed on from its first start up - I didn't drive it as this has never happened before and was quite concerned about it, is it safe to continue driving if temp gauge etc are all okay - thus far no other problems are evident including stalling etc - it drives sweet.

I own a 98 3.5 with 126000ks, which I am very happy with. I know that Jack V6s are very long lived; does anybody know how long if well serviced? Thank you for any feedback.