Jackaroo TDI

Submitted: Sunday, Feb 09, 2003 at 13:18
ThreadID: 3282 Views:2357 Replies:5 FollowUps:6
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I have owned (2) 3.0Ltr Jackaroos - 1998, 2000. Some owners may not be aware that the diesel has problems with the cylinder head cracking. The cracks appear between each glow plug hole, connecting them together. The other cracks radiate out from the glow plug holes and run to the centre of each inlet valve seat. Basic casting to replace is approx $2800.00 bare. BOTH MOTORS had similar cracks, the first motor @65,000Klm the second vehicle @ 125,000Klm

The other problem is the injectors are non servicable items through GMH. They are Hydraulic Electronic Unit Injectors and in Holdens eyes to be replaced with new units when required. Cost is Horrifying approx $2000.00 per injector plus $400/ $500 fitting and calibrating/ grouping. The injectors will set you back over $8000.00 to have replaced.

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Reply By: CJ - Sunday, Feb 09, 2003 at 17:37

Sunday, Feb 09, 2003 at 17:37
Did you have your repairs done under warrenty?
Is there anything to be done to prevent it?
What was the symptoms?
AnswerID: 12742

Follow Up By: V8 Diesel - Monday, Feb 10, 2003 at 08:18

Monday, Feb 10, 2003 at 08:18
The 1998 model had the head replaced under warranty, then the complete long engine because the block also had cracks . It took approx 1 1/2Hrs to heat up then pressurise the cooling system.

The second motor (2000 model) failed then hydraulic locked due to oil in rear cylinder caused by turbine shaft snapping. 6 weeks later it failed again this time because the high pressure oil pump sensor/ release valve had jambed open not allowing the oil rail to pressurise, no pressure means no diesel. When this motor was pulled down the same cracks were apparent. No warranty this time !

There is also another problem with oil circulation through the block "2000 Model". There is an "O" Ring seal on the oil pick up tube/ strainer assembly in the sump which leaks and sucks air causing oil volume to be reduced.

GMH are aware of this problem and there is a fix !

What alerted me to the problem was the further the vehicle was driven 3 - 4Hrs + the more power it lost up hills and the higher the fuel consumption rose. Fuel comsumption would rise over 20Ltr/ Klm and each time you would stop to refill; the fuel cap would POP off the neck as you unscrewed with pressue buildup behind it - like a champagne cork.

On numerous occassion the dealer checked out the vehicle nothing was found to be wrong.

THEN, the motor began starting each morning and ran showing NO Oil Pressure on the gauge and the warning light on. When the "O" RIng Seal was finally replaced the loss of power on long trips and increased fuel consumption disappeared, the starting problems were also cured !

FollowupID: 7443

Reply By: Colin - Sunday, Feb 09, 2003 at 21:16

Sunday, Feb 09, 2003 at 21:16
VA Diesel, are you trying to totally destroy the resale value of Jackaroos on purpose! You should be very careful about statements like the on eyou have just made.
AnswerID: 12762

Follow Up By: V8 Diesel - Monday, Feb 10, 2003 at 22:39

Monday, Feb 10, 2003 at 22:39
Firstly I am sorry to have gotten you offside with my statement; BUT I have probably travelled more Klm's in Jackaroo's 3.0 TDI then most other people in Australia - over 300,00Klm. The statements I have made are true and correct.

These were only a few of the problems encountered throughout the period I owned these vehicles.

I never mentioned: Jumping out of fifth gear, EGR Valve failing, Vacuum Pump replaced, CD Player Failing, intermittently the motor would not fire up - No Errors Flagged to Tech II when running diags, Two Throttle Position Sensors and Two Stepper Motor Ass Failed - Again no errors flagged to Tech II.

Basically; because these vehicles are so complex (Drive by Wire etc) if the vehicle stops in the middle of nowhere the only thing you can hope for is a tow.

No one can accurately locate these problems without Dianostic Tools/ Software and then they have to be very conversant with operating the Tech II.

It took 3 days to locate the failed High Pressure release valve stuck open on the Oil Rail which was allowing the pressurised oil to dump directly into the sump giving no pressure to the injectors.

Regards V8 Diesel
FollowupID: 7490

Reply By: victor - Monday, Feb 10, 2003 at 07:41

Monday, Feb 10, 2003 at 07:41
Thanks v8 you've just turned me off a jack.
Did you buy these vehicles 2nd hand, how have they been treated etc.
AnswerID: 12781

Follow Up By: V8 Diesel - Monday, Feb 10, 2003 at 08:24

Monday, Feb 10, 2003 at 08:24
Both brand new, and both serviced regularly. I travelled approx 160K + in the first Jackaroo 1998 Model in 2 years.
FollowupID: 7445

Follow Up By: Stephenf - Monday, Feb 10, 2003 at 17:21

Monday, Feb 10, 2003 at 17:21
Victor, you've been turned off Jacks by just ONE report? If this is a common problem there should be hundreds of other cases, and I've not heard of any. Keep an open mind until other reports come flooding in.

FollowupID: 7475

Reply By: CJ - Monday, Feb 10, 2003 at 09:57

Monday, Feb 10, 2003 at 09:57
Interesting reading, and some symptoms to watch out for in the futue. Just curios, why was the second (2000) motor with only 65k on the clock not fixed under warrenty?
AnswerID: 12784

Reply By: Savvas - Friday, Feb 14, 2003 at 13:22

Friday, Feb 14, 2003 at 13:22
T/d 3.0L injectors - $545 ea incl GST - Suttons Arncliffe

Enough said.
AnswerID: 13107

Follow Up By: Victor - Friday, Feb 14, 2003 at 17:51

Friday, Feb 14, 2003 at 17:51
Saavas are you implying v8 might be stretching it?
regards Victor
FollowupID: 7675

Follow Up By: Savvas - Saturday, Feb 15, 2003 at 07:31

Saturday, Feb 15, 2003 at 07:31
Either v8 has been badly ripped off (absolutely possible these days if you're not wary), or he's stretching it.

I'd like to think he's being honest.
FollowupID: 7708

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