20 Most Recent 1990 Isuzu Trooper Questions & Answers

ATf and dextron is the same oil
the problem is if you have a CV transmission and not an automatic transmission
have the fault codes read and tell the boyfriend that you will get it serviced at an accredited service center in future

1990 Isuzu... | Answered on Dec 09, 2017

Have you cleaned the throttle valve and the air bypass idle speed control valve? If not do that. When they get really gummed up from backwash from the combustion process they cause this problem of stall on cold start.

1990 Isuzu... | Answered on Mar 17, 2017

QOD: are you dead SURE the slave is ok? moves .75 to 1inch and OK?
2wd or 4wd? not stated.?
no engine stated? v6 or i4?

the procedure is same on all 4wd cars/trucks(mostly)
some pull the engine , for sure if engine needs work,as most do
after 25 years,
or pull transfer case and trans,pulled at the bell.
depends too,if you like spending long time under car
or on top, bent over fenders. (and tools)
if engine out no need to drain 1 or 2 gear boxes..and links,console..endless details....4wd lots more....

the video above shows the odd DUCK, throw out bearing.
and is important to know all that,
why not get a service manual..>?or use mitchell's????

not too many 1990 on the road.
rare car and year.
done many jeeps and rice 4wd.
2.6L,, SACHs 9.5" clutch $120 ($300 is bs)
2.8 v6 SACHs 9.125" clutch. $170

see they are not the same.....
I like Sachs, as you can see.. china clones not.

do you know how to fit the flywheel pilot bushing
and inspect fly surface, ?

the staging on the 9 bolt PP is here

im online now at one famous site
and the install skips, pilot bearing,funny that.
a real service manual is far better.


26a-3xydvjc2hsdtpbulwfi331lq-2-1.jpg slave to fork lever to above damage, at T/o bearing
trans mission pilot shaft tip wrecked, or spline wrecked?
or you wiggle said shaft and front bearing in the box is SHOT.?
flywheel warped, or?
just saying, ive seen it all there, every fail.
on some all those were bad, on many 25year old cars.

1990 Isuzu... | Answered on Feb 24, 2017

find the hole and stick it in. keep fingers crossed. amen

1990 Isuzu... | Answered on Jun 06, 2016

check what ignition key you are using. is it spare key? try another key.

1990 Isuzu... | Answered on Oct 03, 2015

gee guy, 3.1L or 3.2L?
you only need 3 things to time the distrib. static.
where is #1, its the most forward cylinder, LOOK carefully.
forward means closest to the cam drive end of engine.
not flywheel end.
rotor rotation direction (crank and watch it)
now the order, 3.2l v6? IS It? the single cam?
1990 trooper v6
answering for only USA car...
our 3.2 has no distrib V6 its DIS.

3.1L V6 USA spec. only. rotor is CCW

1990 Isuzu... | Answered on Jul 09, 2015


1990 Isuzu... | Answered on Mar 09, 2015

Check that ALL vacuum lines are connected, and properly.

1990 Isuzu... | Answered on Aug 31, 2014

you need to pre pressure a new /rebuilt engine so you get oil into all the galleries , connect an electric drill to the oil pump drive and spin for a good 3-4 minutes , connect a pressure gauge as well so you can see the pressure build up

1990 Isuzu... | Answered on Jun 13, 2014

pull side plug (do not guess, as some tranny have reverse idle bolt that if pulled, kills the trans. dead. do not guess, try reading the FSM
so you dont make it worse.

is the gear lube at lower edge, of hole? good , if lower, bad.
the operators guide covered this ,get one.

1990 Isuzu... | Answered on Jun 11, 2014

check the distributor

1990 Isuzu... | Answered on Apr 07, 2014

I had the same problems. I narrowed it down to a cracked intake manifold gasket. It is a pain to replace.

1990 Isuzu... | Answered on Apr 04, 2014

please post back with more info and maybe I can help. Thanx!

1990 Isuzu... | Answered on Mar 14, 2014

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another make vehicle same driveshaft as

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