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.

There could be several reasons why the water temperature is going up when climbing hills after changing the gearbox in a 4JX1 automatic vehicle. One possible reason is that the new gearbox may be causing the engine to work harder to climb hills, which generates more heat and causes the temperature to rise. Another possibility is that the new gearbox is not properly lubricated, causing excess friction and heat to be generated. It's also possible that there is a problem with the cooling system, such as a clogged radiator or malfunctioning thermostat. A qualified mechanic should inspect the vehicle to determine the cause of the issue.

no 2 different in years & engine

nice double post
and again no country stated, for this diesel.
you posted USA forum, and i think we dont have your car here.
so , that means no books, here covering this car or engine.
the books is sizes of NY telephone book on how
to FIX any A/T trans,
watch youtube, ? some run 20 or 30 hours ,all parts.
buy a book on it, read the complexity there>?

no body will post, hot to fix one here, it be a wall of text, endless. (like asking how to fly to the moon )
ill answer better on your other better post.

this is a USA forum what country are you in?
Fuel systems vary by engine, and country, so......?????
what needs fix'n?

the word fix has many meanings

• how to rebuild the pump?
• time it?
• how to remove it put back?
• how to bleed it.
• and on and on... or a lift pump or ?

try to say what you are doing "the job" and why,
or if not a job, must be diagnosing it, ?
say , im trying to test it or. what ever you doing.
we cant guess, what fix means.
Diagnosing direct injection?



The 4JX1 is a 3.0 L 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.

European and Asian buyers could opt for the diesel.

see we dont have this.
troopers are sold in Asia too, but not here with diesel.

well first off , what engine, of the many is there.?
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

but just wild guessing , the crank sensor is on flywheel and not connected?
if you post what year, what engine and country we can answer.
EFI systems vary by year, engine and country.
in the USA the 1998 all have Crank sensors. EPA laws....
and on some will not run disconnected. (varies)
to work on an engine, know what is there, and share it , or you get wild guessing. par for course at fixya ....

good luck.

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

What is? It tells the ECU what position the crank is in to control timing.

Hello,

The safest way for you to know which gearbox fits your car (second hand) you first have to go to a parts shop with your VIN and get the code and the model for your gearbox.

Don't just rely on car year and engine power.

Hope this helps

Perkin engines were built to a standard bell housing configuration so that gear boxes of different makes would fit straight on. If you hurth gear box was made to these standards then the bell housing will bolt up to the engine. It was no 1 for most gear boxes or no2 for road ranger -splicer . Check with an engine rebuilder rand they will be able to tell you.

Buy a can of throttle body cleaner take off the air filter box, follow the tube and then spray the throttle body and wipe it out first before condemning the injectors