4jx1 How bad is it realy?

[geeves]

Auckland is a mostly warm place but I would of expected starting issues running 10w30 in winter If you go skiing it will almost not start with that oil.

[isuzurob]

10w/30 is the factory recommended oil for them and is fine, we use low ash 5w/30 as long as it is serviced and looked after they arnt that bad

[alick]

I bought mine in 2003 at 23,000km it has now done 230,000km. I have had the recalls done in 2008 had an injector go in 2010 replaced with a second hand one not spending $1600 for 4 new ones, no problems so far with that. 2011 replaced Oil Pressure Sensor and wiring loom, 2013 replace sensor again, Holden told me that 3 glow plugs needed replacing as did the loom cost with labour and diagnostic $1200, told them to put plugs back in and clean up wiring harness and put new sensor in cost $800, running now for 2000km and no problems so far. Replaced starter motor and uprated alternator when that went, went to a 800 crank hr battery and that has solved the short life of other batteries apart from that it has been oil changes and filter changes, changing both filters and oil 10w30 every 10,000km without fail. I would say they aren't as bad as some people make out addmittadly you'll always get a bad one.

[dvssma]

Hey, i am new to this forum.
Just wondering if anyone can help (urgently), am trying to find a 4jx1 workshop manual?
Cheers!

[soils]

http://www.mediafire.com/?i36dwl1pkhb4g

[Paddleman]

I have a Bighorn 1999 with 4xj1 motor Done just over 200k
Causing expensive problems and still not fixed
Local garage who specialise in Diesel Turbos , They ran G scan . 2 codes 1)for glow plug circut(after market timer fitted) 2) code for TPS. Under cranking and not starting and scan showed no oil pressure at injector rail
Refited injectors with new seals and washers and new o rings to injector feed pipe .Also changed (10w30) and both filters
Still has original problem . When cold rally hard to start and once running will eventually stop ( 10 to 15 mins approx )
Will start with easy start
Any ideas on the problem

[geeves]

5w30 oil or even better 0w30 It could also be the pump to feed oil to the injector rail or the sensor for that oil pressure. It really needs the thin oil unless you live in the tropics

[isuzurob]

5w/30 or 10w/30 will be fine, the oil rail pressure sensor will make it hard to start, the oil pick up o rings in the sump oil pickup, glow plugs, the wiring loom to the injectors and rail pressure sensor gets oil in it

[Paddleman]

Thanks for that
Will let the garage fixing it know

[Cartaoro]

I´m new in this forum. I recently bought a 2001 Isuzu Trooper whith 254.000km and a big problem, it have 5 year whitout start. Many mechanic took his hand´s on it. I´m not mechanit but I´m a isuzu lover. I really think this motor need special attention. Frequent revisions of the oil level. And i think ad the same time we chance the timing belt we have to chance the sleeve nozze for security.
Mine actualy doest´n found by i will repair.

Sorry for my bad english

[VacuBlaster]

I bought a 4JX1 engined Jackaroo 5 years ago and have been running it as a daily driver for the last 4.5 years with only one injector issue. If you understand HEUI, then it is a good reliable engine that outperforms most others regardless of its age. Anyone who says otherwise does not understand how a HEUI engine works.

I run a channel on YouTube for 4JX1 owners called the 'Jackaroo 4WD Channel', maybe give that a try.

https://www.youtube.com/channel/UCyq7OT ... FjPdIcf9sg