Replace speedo sensor on isuzu

Question edited for clarity and typo.
Question moved to model category.

There is a repair kit for them.

https://www.google.com/search?q=Isuzu+Trooper+3.1+Diesel+Bighorn+Turbo+repair.

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this is USA forum, and we dont have this car.
IT'S NOT A USA 2002 DIESEL trooper.
that and exact engine, size.
we have, 3 gas engines, 2.2L,3.2. and 3.5L
here. only and books that cover only those 3 engines.
so if a diesel dies.
what>?
check fuses.
scan it.
check filters
try test fuel to see if it runs on test fuel
test the glow plugs yet,?

if pump pressure is dead,?
check, power to the pump yet? (fuses are first)

there are 4,.6 and 8cyl. diesels by Isuzu.,
which is it>
they have names.
7 diffr. B engines, 3,xxxx liters.
and
5 diffr. 4Jxx series engines.
my guess is the engine is.
3.0 L 4JX1 TD I4
3.1 L 4JG2 TD I4

wiki says.
"
European and Asian buyers could opt for the diesel engine option of the 4JG2 3.1-liter (later superseded by the more problematic 4JX1 3.0-liter of 159 PS or 117 kW)
4jg2 is indirect injected
4jX1 is direct.
apples and orange diffr.! injection classes. '

learn what's under that hood, then fix it?

what country
what engine, real names, not 3L vague-ness. please.

replace the speed sensor on the rear of the transmision and posibly the drive gear its plastic so it does not last

Sorry we do not have that info here.

Yes you can . Requires some skills but the only bits that dont work after are the speedo and the rev counter .

These can be made to work but its a bit tricky ..

this is not right there should be a rubber grommet in cluster lens take out and press button with ignition on to reset light just like resetting trip meter

http://www.jeepolog.com/UserFiles/downloads/trooper_manual.pdf

This site has it .

CAN YOU FIND IT THE ENGINE AND A/T WIRING DIAGRAM

it is more than impossible to find them used, you may have to buy them new from the dealer, tell them what you are doing and they can sell you the correct assembly.

i think you must be check starter ring first,my experience to repair Isuzu truck, the stater ring was release from flywheel, not wonder but its could be happen.Try check first.