Advice on a Holden Jackaroo diesel (4JX1 )

Submitted: Saturday, Sep 21, 2013 at 21:04
ThreadID: 104422 Views:4468 Replies:6 FollowUps:7
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Hi,
Thinking of buying a Jackaroo with the 4JX1 diesel engine. Recall's been done and the owner seems to have looked after the truck, changing the oil etc. Any advice on this truck? Am I making a big mistake?! I have owned a Jack before and really thought it was okay.
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Reply By: Member - kwk56pt - Saturday, Sep 21, 2013 at 22:05

Saturday, Sep 21, 2013 at 22:05
I looked at these once. Google Jackaroo diesel problems. the expensive issues go beyond having the recall done. I decided against it, I like reliability and choose to miniimise my exposure to technical support. The petrol jackaroo however is a excellent long living reliable vehicle and despite its heavy fuel consumption will probably be cheaper to own. I didn't buy a Jackaroo but I think the low purchase price of the petrol models along with its reliability offsets its high fuel consumption.

I regard not having bought one as a narrow escape as I had a very high opinion of Isuzu engines having owned a diesel rodeo. The 4JXI engine is a rotten lemon.
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Follow Up By: Johnnytasman - Saturday, Sep 21, 2013 at 22:21

Saturday, Sep 21, 2013 at 22:21
do you know if parts are hard and expensive to get now they are discontinued?
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Follow Up By: Member - kwk56pt - Saturday, Sep 21, 2013 at 23:22

Saturday, Sep 21, 2013 at 23:22
Australia4wd.com has a forum under Jackaroo Technical devoted to the 4JXI engine. Worth a read before you buy. I don't believe there is a parts availability issue as I think they were sold as a trooper in America.
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Reply By: Tim - Saturday, Sep 21, 2013 at 22:22

Saturday, Sep 21, 2013 at 22:22
If you search this forum you should get some good info. I owned one. I loved it but it was a dog to start when cold (under maybe 15 degrees).
It also has a dual mass fly wheel clutch which cost me $1600 to replace.
Tim
AnswerID: 518553

Reply By: CSeaJay - Sunday, Sep 22, 2013 at 08:32

Sunday, Sep 22, 2013 at 08:32
Johnny
Parts are expensive
Engine needs nursing and extremely particular on oil
I would advise against buying one, on the basis that long term cost and even poorer resale value down the track will cost you more than other comparable sized vehicles.
AnswerID: 518564

Reply By: MEMBER - Darian, SA - Sunday, Sep 22, 2013 at 08:46

Sunday, Sep 22, 2013 at 08:46
In my view, forget it. I had one for 8 years and was lucky - many have had their fingers burnt. Parts are not an issue as I recall but mechanics who understand them are rare. That engine offered great performance for a 3L diesel in 1998, but Isuzu and Caterpillar were too clever with the injector system - the high technology for that day proved unreliable and costly all round. A few points I recall; Two oil pumps, two oil filters, failing injector seals, oil seeping into electrical looms, very hard to start in cold weather (unless you use very thin oil, which would be unsuited to hot weather and/or a worn engine), a decent amount of oil won't drain at oil changes (new oil mixed with old every time), the engine block and the head can never be shaved (if indicated, during an overhaul).......
The Jack is a robust carriage though - petrol seems the go.
AnswerID: 518565

Follow Up By: Johnnytasman - Sunday, Sep 22, 2013 at 08:50

Sunday, Sep 22, 2013 at 08:50
Thanks. Yes I have definately gone off the diesel Jackaroo. I had a 1998 petrol for a few years and towed a pop up tent trailer. never had a problem. Went to Landcruiser 80 series and didn't like it, particularly the lousy seats. Any other suggestions for around $10K?!
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Follow Up By: Axle - Sunday, Sep 22, 2013 at 13:34

Sunday, Sep 22, 2013 at 13:34
G/Day Johnnytasman,..A 300tdi landrover (98mod) will come in at that price range if not under, comfortable, economical, good power for size of engine, and forget what they say about it,Very reliable and cheap for parts these days.

Cheers Axle.
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Follow Up By: Johnnytasman - Sunday, Sep 22, 2013 at 13:44

Sunday, Sep 22, 2013 at 13:44
yes, I had one of them a few years ago. It overheated when the missus was driving and blew the engine, ended up getting a replacement from the UK. Cheaper than a finding a junk one here!
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Reply By: NTVRX - Sunday, Sep 22, 2013 at 09:10

Sunday, Sep 22, 2013 at 09:10
Pajero Diesel.
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Reply By: The Bantam - Sunday, Sep 22, 2013 at 14:49

Sunday, Sep 22, 2013 at 14:49
A mate of mine has one of those.....I helped him with an oil change once.....what a PITA.

Two oil filters both hard to get at.....his had an exhaust mod & I needed to take the front drive shaft out to change one of the filters.......Betya lots of people are too lazy to change both or don't look for the second one.

OH yeh, it took like 7 1/2 litres of oil too.....and people recon they don't drain fully...hmmm

This engine look like an after thaught grafted in someones backyard.

Yeh his overheated and blew up too.

Plenty of better options on the market.

cheers
AnswerID: 518587

Follow Up By: MEMBER - Darian, SA - Sunday, Sep 22, 2013 at 16:33

Sunday, Sep 22, 2013 at 16:33
That smaller second filter that is hard to get to was designated in the manual as 'only requiring a change at such time as engine overhaul' (as I recall). "Pig's ding' was my mechanic's view - I chose an inexpensive Ryco and changed it each 10k - I did the main one each 5k with the new oil.
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Follow Up By: The Bantam - Sunday, Sep 22, 2013 at 16:40

Sunday, Sep 22, 2013 at 16:40
Yeh like most american derived brands at times specifiy change of diff & gearbox oil only at overhaul.

The manufacturers view of vehicle life and when things require overhaul ca be very interesting.

Perhaps if that filter was changed between overhauls, maybee that overhaul might not be as often.

Yeh sorry.....my view is that as soon as you stick a lion badge on a product it is cursed by american engineering expectations.

cheers

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