Jackaroo woes

Don't start me...but you have....If the seals and the valves are all fixed to spec, starting woes should be down to oil grade. 10W-40 for mild conditions (5w-40 or even 0-30 for extreme cold areas). Can only say mine is still running fine n dandy on 10W-40 Castrol magnatec and starts nicely. I had a 5th gear whine too, but it has now gone (like all these modern cars, give 5th an EASY LIFE. Any decent load should see you shoot back to 4th. My G box oil is 75-85 synthetic. The big filter is the main - the small one is the one that Isuzu says you can leave on forever (till donk rebuild - my mechanic says - "nope - change it"). I do the biggy every 5 and the small one every 10.
Also, re comment here the other day about filters being hard to get off....had the same issue on my renault this week.....I always lubricate the seal as it goes on, but when this one came off, the seal was as dry as a limeburner's boot. Extremely hard to move, even with the filter tool ! Oil must have all been squeezed out - I am now going to simply tweak filters - no more two handed forcing tight!Get me outa these suburbs !

Not sure what BS you have been told there are in fact two of them and it's belt drive the valve clearances are adjusted by changing the Shimms, it's not a quick job but if correctly done should only require "checking" every 40,000 klm. adjustment I would think finding another dealer or better still a competant NON holden workshop to do the work for you, the tappet adjustment accoding to the local workshop was no worse to do than on many other new cars, only the removal of the intercooler & plumbing took a little more time.

The Valve adjustment should have been done at 40,000k, 80,000k, 120,000k etc.
and the service time differance should have been only 3 hours according to holdens own service Dept. not sure what they have been up too.... have driven a early 1999 model with 370,000 klm on the clock, it goes as good as new and accoding to the owner had the same injector seal problem done under warranty, changed to the correct oil as per Isuzu (10w-30w) 300,000 klm ago and has been very happy with the vehical so far.

as other's have said use 0w-30w (cold areas) 5w-30w 0r 10w-30w to 10w-40w in warmer areas. these motors are built to such fine tolerances that these thiner oils are perfect for them anyway!

The correct oil for the gearbox is same synthetic oil used in the engine 10w-30w synthetic motor oil! altenatively use a heavy (70w-85w synthetic LSD/gearbox oil, castrol vmx?) the shifts on a cold morning will be stiffer with any heavy grade oil in the box. The 5th gear whine is because of the type of gear cut angle used, have as yet to hear of common 5th gear failure in jackaroo unlike some of the newer patrols(early gu). meanwhile if it's noisey go to your local motoring organization (racq, Nrma etc.) & get them to put the fear of god into the dealer about the gearbox noise if it's very noticable. so have had an insulation pack put around the gear shift to reduce the noise, you could have on the other hand a gearbox that requires attention, most of the Jackaroo's I've driven are very quiet at and around the open road speed limmit.

as for oil filters change large(main engine) along with the oil and small (injector system oil feed) every second oil change, if they havn't changed this filter as part of normal servicing the dealer must want to sell you a new motor.......something that being isuzu should last for many years!

as I see it now the biggest problem with these vehicals is that Isuzu didnt sell them through there own dealer network (light trucks)in Australia, instead they went to holden who's marketing & service has let a very good product down. long term should have no problem with parts as in the USA they sell them as the Trooper with a 10 year driveline warranty! holden is short changing us over hear!

Happy motoring

jack

Hi Jackaroo,

If bleeding is helping starting, I'd suggest you might have a small leak somewhere in your fuel system. I'm not up on electronic injection types - mine's an old 4Runner diesel with the rotary pump - but on those older types you only need a fairly small leak somewhere to get a bit of air in your system, and then it can be very hard to start.
One other thing - I presume the fuel filter's been changed?
Tim Z

holden issued a bulletin to all dealers on may 3 2002 directing them to change the sub oil filter at 20000km intervals.
The hard starting can be due to fuel running back to the tank from the engine. a simple flow control valve is available to cure this and is fitted in the engine bay.
send me an email to millstr@bigpond.com and I'll give you more info.