Question about 1994 Isuzu Trooper

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Fuel knock upon starting and my timing is advance on my isuzu monteray with 4jg2 engine

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  • 56 Answers

Have youre timig checked.youre timing belt could be stretched.and possibly jumped timing

Posted on Feb 03, 2010

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Posted on Jan 02, 2017

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4JG2 ISUZU HARD STARTING WHEN ENGINE IS HOT I CHANGE MY A BRAND NEW BATTERY ALREADY


no year car
no car stated, at all,
no county stated either.
just and engine,diesel
find a diesel shop,

start with hand done test fuel ,spray
sound like low compression hot;
.Zexel make. In-Iine Bosch A type.PUMP has problems.

Jan 30, 2017 | Isuzu Cars & Trucks

1 Answer

I have a 1986 isuzu pickup it is a 2.3L 4cyl 5 speed 4x4, whenever it is given higher gas it tends to knock quite loudly, timing belt is fine and all fluids seem to be up where they should be.


the knock is most likely detonation or spontaneous combustion
it comes from incorrect air / fuel ratio, incorrect ignition timing,
incorrect rpm for the throttle setting
It is detrimental to the engine as the increased combustion temperatures will melt piston tops if allowed to persist unfixed
start by running the fault codes to find the problem area
( most likely a heated oxygen sensor (HO2S) in the exhaust manifold not reporting correctly to the ECM which controls the injector settings

Sep 28, 2016 | 1986 Isuzu Pickup

1 Answer

We live in New Zealand and own a 1998 Isuzu Bighorn, 3.0D. About 3 months ago it started idling roughly and stalling just after starting. Then it stalled on me when I was driving 70kph. It also has no


wow first post ever posting country ,what a brave person. !!!!
welcome to USA forums ,that have no such car.(truck)
the line up. (wiki list) so its 3.0L 4JX1
stalls and lost power.
The 4JX1 is a 3.0L direct injection diesel engine, turbo, some intercooled, which replaced the 4JG2 in the Isuzu Bighorn/Trooper/Holden Jackaroo. It uses unit injectors and 4 valves per cylinder.

can be caused by many reasons. get it scanned yet. ?
or see FSM book on flash codes from the direct injection fuel
controller? (per this engine option and market)

does turbo have proper boost? (PSI boost or +1 bar boost?)
does it even have a boost gauge.?
there are over 50 causes, of stalls (most inside engine)
but its not getting boost or the injection rates are wrong.
there are basic tests for each covered in the FSM
Factory (oem) service manual, with coverage for this engine.


3.2 L 6VD1 SOHC V6
3.2 L 6VD1 DOHC V6
3.5 L 6VE1 DOHC V6
3.0 L 4JX1 TD I4
3.1 L 4JG2 TD I4

Feb 15, 2015 | Isuzu Cars & Trucks

1 Answer

4jg2 engine is not starting


does that mean it CRANKS robustly, if not? fix no crank or post that.
1994 trooper. (not starting wide open throttle to clear flooding>?)
is the 4JG2 is a 3.1 L (3,059 cc), EFI engine. V6.
this is 1 of 9 engines , used,
i think this 3.1 has a distributor ,
so does the cap off, rotor spin cranking, if not , the cam chain snapped.
next, is spark (i do compression first, but im odd that way, on old iron)
i check spark. i check it to all 6 cylinders using the time honored system. we all know, right>? with a fresh test spark plug, gapped correctly. got spark.
are you spark plugs old , never did the 60k mile tune ups, (repeats)
if the spark parts are old ,no car runs right.
you know the ,ole' cap,rotor,wires , sparks filters deal.'
the we check fueling.
i look at the spark tips, are the dry,? i try the test fuel test.
if car runs for 3 seconds on test fuel the engine fuel system is dead.
check fuel pressure next.


watch scotty do his magic.

http://www.youtube.com/watch?v=064Ilsz8Fzg&NR=1&feature=fvwp


Apr 18, 2014 | 1994 Isuzu Trooper

1 Answer

ISUZU 4JG2 ENGINE TIMING BELT BROKE


Guys isuzu trooper 4jg2 3.1d is an interference ? .

Mar 07, 2013 | 1994 Isuzu Trooper

2 Answers

Hello, can l use the 4jx1 gearbox if l was to replace it with 4jg2 engine .or l should change both with the gear box, advise.


Kindly did you managed to change 4jx1 with 4jg2? Did you changed the gearbox? What modification is needed for this change?
thanks.

Nov 23, 2012 | Isuzu Trooper Cars & Trucks

1 Answer

Check trans light flashing


The gearbox speed sensor which is an input to your computer may have come off or been knocked

Nov 20, 2008 | 1997 Isuzu Oasis

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