Outer Limits 4x4 Board

My mate has a 2000 model turbo diesel Jack that is having a few probs
He is just wondering if anyone has had simmilar problems.
Recently the engine cut out while driving. After a tow to a workshop it was found to have no pressure at the injector rail.
But eventually a roll start got it fired up.
While driving a few days later it happened again.
How does the injection system work on the Jacks? The mechanics said something about oil pressure being used for the injectors??

The other big problem has been that his clutch has shat itself at 95000.
Is that normal? And what is a good price for a new clutch? he has been quoted $1500 for a genuine one! thats gotta be way over priced!

So has he bought a lemon or is it easy fixed?

The injection system on the 3.0TD is a HEUI (Hydraulic Electronic Unit Injection) system designed and manufactured by CAT. It does use oil pressure to operate the injectors. Fuel is supplied by a high pressure fuel pump. It would be difficult to roll start a vehicle with this type of injection system because the HEUI system needs high oil pressure to operate. Hence why they crank for a while before starting. I had a problem with mine when new ('03 Jack) it had a failed HEUI oil pressure sensor. Other than that and a slight oil leak from the timing cover, it hasn't missed a beat.

As for the clutch, mine has only done 30,000kms so all is good. Genuine is way overpriced. I was quoted the same ($1500) for a clutch kit for my '99 Frontera when I had it. I think PBR do a kit for them so check them out.

they are most likely different but a clutch for my 3.2L V6 Rodeo was
$1400 genuine
$900 retail for Exceedy/Daiken
$650 trade discount for the above kit (got a mate to get it for me)

The "reason" for the price was said to be because it is a pull clutch not a push like your standard one.

So if you can try for ABS (Auto Brake Service) for a price and then if you have any mates who work in mechanical trade get them to source a price as well

Anything OEM these days is outrageously priced. Especially Isuzu.
I was quoted $650 + GST for 1 OEM O2 sensor for my V6 from a Holden Dealer!

It just pays to be patient and shop around

i had the fun job of finding oil & fuel getting into cylinder on one of these at work a year ago & swore id never touch another one, the injecters are in removable buckets with seals & copper washers(sold as a kit from holden$80ea??), when ever you remove the injecters you have to replace these buckets & seals,or you will have to removed them again a few times to stop them from leaking or mixing.. as i had to before i found out you had to replace everything at once even if they look fine.holden has a special tool for removing & fitting new units as not to pinch seals.Scanas of a job that i lost money on just to fix the car & get it out...
take it to holden & dont bitch when they say its $2000 for injecter service to stop this problem.(inj serv,new bucket kit & lab)
sorry for the bad news,
cheers
daz
newcastle

HI 75 wrote:i had the fun job of finding oil & fuel getting into cylinder on one of these at work a year ago & swore id never touch another one, the injecters are in removable buckets with seals & copper washers(sold as a kit from holden$80ea??), when ever you remove the injecters you have to replace these buckets & seals,or you will have to removed them again a few times to stop them from leaking or mixing.. as i had to before i found out you had to replace everything at once even if they look fine.holden has a special tool for removing & fitting new units as not to pinch seals.***** of a job that i lost money on just to fix the car & get it out...
take it to holden & dont bitch when they say its $2000 for injecter service to stop this problem.(inj serv,new bucket kit & lab)
sorry for the bad news,
cheers
daz
newcastle

This is a free factory recall 03-H-03 if the diesel leaks past the O rings
And is only a 3 hour job acording to Holden

.

Not so sure it's a 2 hour job. the holden dealer down here took 14 hours
to fix the injector seal problem. they pulled it apart and put it back together that many times but it kept running on 3 cylinders under load and blowing heaps of smoke. it turned out that one of the injectors must have been damaged on the bench the first time they pulled it apart. it's all good now and has been for sometime. lucky it was covered under the recall.

Hi all

I think that the following info may answer your questions. This has been a fault with the 4JX1 engine sine the day that they where put on the road. All the info that has previously been posted is correct. After working on these Jackaroo's for a number of years I can tell you that taking it to a Holden dealer is the right choice. Holden may even fork out for a portion of the cost as this is a commonly known fault.

Holden tried a few service fixes to remedy this fault by fitting heavy duty o-rings and a sleeve with back-up o-ring on the injectors to support the o-ring. This worked for a while but the fault still came back in a lot of cases. Later on in the model range holden began replacing the actual sleeve that is press fitted into the cylinder head with a new improved unit that did away with the sleeve on the injector. What a lot of techs don't realize is that when the o-rings begin to fail they damage the aluminium sleeve that is press fitted into the cyl head. At first the sleeves where unavailable and there was a lot of cyl heads replaced under warranty. This was costing the manufacturer a s$$t load of money and a special tool was released to replace the sleeve in the cyl head.

If you have or are having trouble with your 4jx1, bite the bullet and send it to a holden dealer for them to check. To remove the injectors and replace the sleeves and o-rings will be costly and should take about 4-6 hours by some one who has done a few(holden). I the long run it may save you and the poor non-holden mechanic a lot of time and money.

Any other queries on this just let me know and i will see if i can help. Don't be put off by this as these motors can be a real powerhouse when the are running well. Thus the reason for the clutches burning out in them.

P.S. Try Daikin for a good heavy duty clutch for this car and it may be worth getting your holden dealer to fit it as they might know how to get the trans out much faster than some-one else. And pray that the flywheel is not worn to much as the cannot be machined from memory as they are a dual mass unit.

Hope it all helps, DTS.

I have an October 2001 3.0 TDI that I picked up back in December with 105k on the speedo. Not had any problems with it other than a once off overheating problem going up a steep long climb. Lost power so I pulled over and left it running while it cooled down. Took off again and it was fine. Probably a sticky thermostat that failed in its duty under load. Hasn't played up since.

Does anyone know if this injection system recall problem mentioned on this thread, was fixed by the time my bus was built? I could call a Holden dealer I suppose, but would appreciate any feedback from here. Cheers.

With the leaky O rings you will know if yours fail because the oil level on the dip stick will rise due to diesel dilluting it.

PANIC get it repaired imediately as the engine may start running FULL THROTTLE, on the over full sump oil. Turning the key off will not shut the engine off!

long story short:

my brother's 2000 Jack had the entire engine replaced under warranty/recall in 2007, recently developed a slight misfire which has become steadily worse. it is now sitting in the dealership workshop, finally diagnosed as bad injector(s) and Holden wants $3100ish for a set of injectors (plus diagnostic time, fitting etc). The new engine has done only 70,000km but holden will not give an inch of warranty support.

does anyone know of an alternative source for these injectors? I spoke to SMS today and they are trying to find them however they seem to be genuine only.

cheers
DD

All Heui jack parts ar rediculously expensive and even then they cannot totally guarantee you will not have more problems.
The Heui system works fine for Cat but Isuzu no way .

If you go on ebay ATM there are injectors there cheap and if they are replacement they should be good.
Dont keep chasing your tale withthem they will break you financially.

I scrapped the 4jx1 and Im running a 4jb1 enhansed in a 2002 and its great 850Ks per tank and good performance.

The clutch is another problem due to the dual mass flywheel and when the flyweel goes thay want retail $2500 all up with the clutch at nearly $700.
Chuck the lot away and replace it with a sold flywheel with good exeedy clutch from Performance Clutch in Queensland and you will not look back.
Wheeley

thanks

I sourced them in Dubai, from memory $1700 including shipping, I paid on a saturday and they were delivered the wednesday afternoon. at least the Arabs know a thing or two about cistomer service!