Recall - poor way to have done


The Holden Jackaroo has been generally found to be a reliable vehicle …. provided that it has been serviced regularly according to the factory schedule! Deferring oil and filter changes is a sure way to cause future problems.

The turbo diesel Jackaroo with the 4JX1 engine is a very sophisticated design and requires special care to maintain performance, nevertheless with care, engines have been known to go to over 300,000 km and still continue to provide satisfactory service. Unfortunately this reliable performance has had the effect of few mechanics gaining exposure to the vehicle. The larger Holden dealers should have the resources to solve any problem. That is, people with knowledge, test equipment and access to Holden service bulletins and factory support personnel (who are very experienced!). Unfortunately the Holden Dealer service charge rates are more expensive than your local mechanic but the upside is that they may be able to identify problems quicker than someone starting afresh without appropriate knowledge and experience with the Jackaroo.

Above all, we would recommend that the Factory Service schedule be followed. The service schedule is contained within the Driver’s Handbook supplied with the vehicle.

The following tips are offered to assist 1999-2003 Jackaroo owners in understanding their vehicle (and perhaps guiding local mechanics) in servicing and determining possible causes of poor performance. They are downloadable separate pdfs and you might consider putting a copy of the MIL Fault Codes (Tip 10) in the glove box. There are a number of “common” problems that might be experienced with the Turbo Diesel that can be identified reasonably quickly to allow you to get moving again.

Disclaimer: The Jackaroo Club Victoria and the document authors offer this information in good faith, however they accept no liability for any misinterpretation of the information or damage to a vehicle that might result from application of the procedures contained therein.

TOPIC – model EFFECT on…. TIP NO.
Tailgate rattles – All models Driveability, Noises 1
Steering Wander – All models Driveability 2
Handling diesel fuel – Diesel Cleanliness 3
Driving in dust and insects – All Cooling 4
Radio antenna replacement – All Entertainment, communications 5
Jackaroo Lighting Lighting, driveability 6
Fins on Diesel Intercooler – Turbo Diesel Cooling 7
Air Filters – Turbo Diesel Engine life, driveability 8
Understanding Check Engine Fault Codes – all Fault finding 10
Turbo Diesel Air Trunking – Turbo Diesel Maintenance 12
Shock Absorbers – All Driveability 13
Throttle Position Sensor TPS – Turbo Diesel Driveability 15
Choice of Oil – Turbo Diesel Starting, engine life 16
Oil Rail Pressure Sensor ORPS – Turbo Diesel Driveability, starting 17
Trailers and wiring – Turbo Diesel Starting, ECM failure 18
Rail Pressure Control Valve RPCV – Turbo Diesel Driveability 19
Injector harness – Turbo Diesel Driveability 20
White Smoke Exhaust – Turbo Diesel Driveability 21
Black Smoke Exhaust – Turbo Diesel Driveability 22

JACKAROO TIP – #1 – Tail Gate Rattles – by Philip Johnstone

Do your tailgates rattle on your Jackaroo?  If so, maybe it is time to check the adjustment.  The right hand gate essentially provides the only tension in holding both gates tight against the body as the left side is locked onto the right.  So simply, if the right is not tight then the left will tend to rattle.  But the clever people at Isuzu recognised this problem and fitted an anti-rattle device at the bottom of the left gate.

The anti-rattle device operates as the body flexes and the gate moves, gradually making the gate tighter.  This is achieved by a sliding spring loaded wedge rubbing on a ramp.  It is desirable that the wedge be able to move easily.  Now take a look at your gates and check the operation of the wedge.  It is still there, isn’t it?  In many cases dust and muck have effectively jammed the wedge from moving and causing the steel ramp on the frame to wear – even to the degree of creating a flat spot without ramp.  Now check the rubber seal around the door opening for wear.  This will generally suffer along the bottom edge where items are slid in over the sill.  If the seal is worn or broken in places then maybe you should consider getting a replacement – yes a new one is still listed by Holden but somewhat expensive!

Adjustment: Set up the right gate by adjusting the position of the catch on the bottom of the door frame to give a snug fit.  Then adjust the steel ramp to ensure that it provides maximum effect.  If the ramp or wedge is worn then you might consider replacement although it is possible to build up the ramp by either a spacer under it or by brazing with bronze and grinding or filing back to shape.  You can check whether the wedge is sliding in tight by smearing the ramp with petroleum jelly and driving over some rough patches and opening the gates and noting where the wedge has slid up the ramp.  If the wedge has moved into the limit of its travel then maybe you will need to fit a spacer under the ramp.  Regular cleaning and some petroleum jelly on the ramp will be effective but the down-side of the lubrication will be dust collection so some dry lube, such as graphite dust is preferred.  Keep some lube in an accessible place so that each time you open the gate you can check the ramp.

A final comment, higher tyre pressures will improve your fuel economy but may highlight any looseness and rattles in the gates.


Rare fish found near Fry’s Flat

Douglas Lunt

FRY’S FLAT, near Mansfield in Victoria, was a hive of activity over the November long weekend following the rediscovery of a very rare fish.

The snowfish, once quite common in the colder mountain streams of New South Wales and Victoria, was last sighted in 1935 by gold prospector Mr Keith DeSilva, working in the Kiandra goldfields of NSW. Due to the flavour and colour of the flesh, the fishermen of yesteryear considered the snowfish a delicacy. Even though many keen anglers have tried to catch an example of this fish over the years, it was believed by most authorities to be extinct.

Chris Smith and son Trevor, from Taylor’s Lakes, in Melbourne, were understandably excited about their discovery. “I had heard stories of the snowfish living in cold mountain streams, but I thought they were just stories… I didn’t really believe that such a fish existed any more,” said Chris later that day in the campground at Fry’s Flat.
“We’d no luck fishing yesterday so we decided to go for a bit of a drive up to the snow with our friends from the Jackaroo Club. At lunchtime we stopped near a small pool that had ice on the top. I threw my line in as a bit of a joke, but can you imagine how I felt when I got a bite and pulled out a snowfish? Trevor nearly fell in with excitement.”
“Yeah, I thought Dad was kidding. He does that sometimes, but when I saw the fish, I slipped over and nearly did fall in!” said Trevor, smiling widely.
And where is the snowfish that Chris and Trevor caught? “Our friends took some photos of us, then Dad kissed the fish and put it back. Can you believe that?” said Trevor.

“I wanted to keep it for tea, but I guess putting it back was the best thing to do. I hope getting kissed by Dad didn’t upset the fish!” Trevor exclaimed, still grinning.“ We don’t want to tell you exactly where we went,” Chris said, when pressed for the location of the pond. “We want to preserve the colony. We don’t want everyone to come up here, or the fish may really become extinct.”

Now that may be the case, but judging by the activity at Fry’s Flat over the long weekend, plenty of people were about with fishing rods, although when questioned, no-one said they’d caught anything.

Environmentalists have blamed the pollution of the mountain streams as the major cause of the demise of the snowfish. Further information about the snowfish can be found at http://snowfish.net/