2003 model Jackaroo surging,
Submitted: Wednesday, Jan 20, 2010 at 18:10
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Geoff (Newcastle, NSW)
Hi Team,
Mate of
mine has a 2003 model Jackaroo fitted with a 4JX1 diesel engine.
It has a bad case of the surges. Fine when it's cold, only occurs when its hot.
He tells me the injector recall fix was performed on it in 2006. Maybe it is or maybe it isn't the issue?
He's got a 2,000 page PDF manual he downloaded from somewhere on the web that gives him all sorts of
test points and
test voltages for various sensors. If any of you reckon it may be a particular sensor he has the information and the skills to
test the idea.
The other thing he mentioned was after a recent service he had to drain 2 litre's of oil from the sump to get it back to the correct mark on the dipstick. My suggestion here was an oil analysis to make sure it's only oil and not a 2 litre top up of diesel.
Over to the experts, you.
Geoff
| Geoff,
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Reply By: Notso - Wednesday, Jan 20, 2010 at 18:34
Wednesday, Jan 20, 2010 at 18:34
A mate of
mine recently had a similar problem and it was caused by his water separation system in his filter. There was some restriction which was causing fuel starvation.
They ended up replacing the filter body complete.
AnswerID:
400357
Follow Up By: Geoff (Newcastle, NSW) - Wednesday, Jan 20, 2010 at 19:08
Wednesday, Jan 20, 2010 at 19:08
Thanks Notso, I'll pass your comments onto my mate!
Geoff
| Geoff,
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Reply By: MEMBER - Darian: SA - Wednesday, Jan 20, 2010 at 20:41
Wednesday, Jan 20, 2010 at 20:41
Had a new 99 TD SE for 8 years - no sig problems to report, so no first hand info on your mate's problem, but you could be onto something re the fuel - the injector seal saga would have been an expensive one for Isuzu with all those recalls, the last being injector replacement (ouch). I'm told oil did get past the iffy seals and if it didn't cause a major problem, it would at least be getting into the crankcase in some measure. I serviced
mine at
home and getting the oil change right was not an issue - having 2 litres too much in there would take intent ! As an aside, that motor never drained properly - straight after an oil change, the oil was 'black as' at the first turn of the key, due to a lot of dirty oil being retained in the system. Two oil pumps, two oil filters, oil driven injectors, 2 cams and 16 valves - all very "clever" - at that time, 118kw was a lot from 3.0L - now the latest tech is getting near the 200kw mark from the same capacity!
AnswerID:
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Follow Up By: Geoff (Newcastle, NSW) - Wednesday, Jan 20, 2010 at 21:29
Wednesday, Jan 20, 2010 at 21:29
Hi Darian,
I was very surprised when Bob mentioned it had two oil filters and two oil pumps!
Apparently their is a filter and pump each for the injectors and the engine!
Would this bit "that motor never drained properly" account for two litres? From what you say I doubt it but worth the question.
A local mechanic serviced it for my mate and as you say, two litres too much takes talent. The odd bit right now to answer is the bloke "talented" or did the extra two litres com from somewhere else?
Thanks for your input,
Geoff
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Follow Up By: MEMBER - Darian: SA - Thursday, Jan 21, 2010 at 15:45
Thursday, Jan 21, 2010 at 15:45
I don't know how much dirty oil the system retained on draining, but it was sufficient to be a big disappointment when checking the dip stick after an oil change - getting used to brand new black oil is not funny. Re the extra 2 litres - the only way your mate can settle that is to do a correct oil change himself and then monitor the levels. Re the grade - in mild climates, 10W-40 would be ideal (always was for me - C Magnatec) - for chilly areas, going down to 5W is more like it to assist starting .... 0W-30 is listed for snow etc. ..... starting in cold climates was such a problem that they started shipping them with two batteries just to assist with that problem ! (the first couple of years they only had the one battery).
That motor was emerging at a time when there was a race for hi power, low emission, low fuel engines - they got the HEUI oil pressure powered injection from Caterpillar - but with the other tech issues mentioned in this post, plus things like [ '
the block and cylinderhead surfaces cannot be resurfaced' ] one can't help but think Isuzu have dealt everyone a pretty low blow with this donk..... anyway, do what you can to cheer up your mate :-o) !
There is a lot of info on the web about this motor, such as [
http://www.itocuk.co.uk/forums/viewtopic.php?t=2026&sid=90b7c63d6e6e797720121c4dda003931 ]
FollowupID:
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Reply By: Member - The Bushwhackers -NSW - Wednesday, Jan 20, 2010 at 21:48
Wednesday, Jan 20, 2010 at 21:48
Hi Geoff,
When I was investigating the problem with my Jackaroo, I got bucket loads of info from a fella on here, said he was a former service manager with Holden. One of the symptoms of crook injectors on that engine was leakage of fuel into the sump, so I would be looking at that, then start worrying.
I had an injector fail about 6 weeks after I bought the car .......... fixed at Kelly Holden Cardiff, $952 for just the one injector to be replaced. Queried them about the safety recall, and they punched my VIN into their computer, which showed it had the injectors done twice on recall, a new turbo when it was 2 years old, and on and on... I was stunned and stopped listening :))
Hope its not injectors causing the surge problem, for your mates sake, but that 2 litres of extra 'oil' makes me nervous.
Cheers, Dave
AnswerID:
400391
Follow Up By: Member - The Bushwhackers -NSW - Wednesday, Jan 20, 2010 at 23:11
Wednesday, Jan 20, 2010 at 23:11
Correction, the repair bill for the injector was $992:50... lol . Just checked the original questions I asked in the thread, the guy that gave me a lot of info was Member: Mike H.
Thread I.D. 67454 , might be worth a look, especially the very last post on that thread.
Cheers, Dave
FollowupID:
669555
Reply By: RV Powerstream P/L - Thursday, Jan 21, 2010 at 09:21
Thursday, Jan 21, 2010 at 09:21
Geoff
Ive got complete huey motor here stripped I bought a 2002 with a fluttery motor and pulled it out and am nearly finished with a replacement 2.8 fully rebuilt ,balanced with recut cam for better valve opening and double valve springs.
It will produce as much power as the old 4jXI and when finished with some more mods will pull 200hp.
The Huey motor is a dog the the common rail injection is modified Caterpillar electrical hydraulic injector operation and uses refiltered sump oil.
If the sump doesnt drain properly imagine the crappy oil build up stuffing up sensors, injectors and even impregnating the loom from the computer which lies inside the tappet cover.
People have paid thousands of dollars having mechanics chase for problems and eventually give up.
Make sure he does the work himself if he is capable and be prepared for the worst.
The 1998 to 2003 models with the 4jxi engine come up regularly for sale at rediculously low prices due to the above and there is some on ebay now starting at $3000.
Ian
AnswerID:
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Reply By: OREJAP - Thursday, Jan 21, 2010 at 09:45
Thursday, Jan 21, 2010 at 09:45
Have had similar problem with Jackaroo & my input is it's an oil problem. The wrong oil & it won't start, won't run properly & surging (sometimes lack of power) I had a Holden dealer put 20 - 40 oil in the vehicle on a service & it surged & spluttered & would not go faster the 6k/pHr. Good luck!!!
AnswerID:
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Follow Up By: Member - Timbo - Thursday, Jan 21, 2010 at 12:24
Thursday, Jan 21, 2010 at 12:24
That's an interesting point OREJAP, could be just the wrong grade of oil (let's hope so for Geoff's sake!). I've heard those engines are pretty fussy about the right oil and won't run properly (or at all!) unless you get the right grade etc.
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