Question about 1993 Isuzu Trooper

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While stopped, rpm goes up and down then shuts off, 99 Isuzu Trooper

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Posted on Apr 07, 2009

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Brake problem isuzu trooper brake pedal goes solid half way down and braking very poor


your master cylinder is gone. when stopped apply pedal and hold let up slightly then reapply if pedal sinks to floor master is bad

Apr 12, 2013 | 1989 Isuzu Trooper

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I have recently purchased a second hand isuzu trooper model 1999 with manual transmission..everything goes on smoothly until one day it suddenly stopped as if it has gone out of fuel and wont start no...


No its not full with diesel fuel this is a common shut off on the isuzu. Plus the valve are always noisy . The crank sensor on those go out easy.This may not be the problem.Go to the back have someone crank it ,or if your hearing is great as you crank it do you hear a hummin noise that will be the fuel pump if you dont then the fuel pump will most likely be your problem.If you hear a humming noise as you turn the key on the fuel pump will not be the problem.Now let check spark. do you have a tach on it (the RPM) if you do crank it if it bounces just a tinytiny bit you have spark and the fuel pump will be the problem. Most common Isuzu trooper failure the ignition module

Apr 21, 2011 | 1999 Isuzu Trooper

1 Answer

Can a 99 isuzu trooper tranny work in a 2001


search around for auto recyclers via a google search. find one with a searchable inventory, they are out there. marshall's in circleville, ohio is one. search for a transmission for a 99 isuzu trooper and for a 01 trooper transmission. if they have the same interchange part number, you are good to go. if not, you will find certainly one that is.

Feb 08, 2011 | 2001 Isuzu Trooper

1 Answer

Idle speed high


Sounds like the tps (throttle position sensor) is either defective, or out of adjustment. Need an oscilloscope to check, so see a mechanic. Could also be vacuum leak. check lines for cracks and leaks

Oct 19, 2009 | 1990 Isuzu Trooper

1 Answer

What years auto transmission fit a 1999 4X4 Isuzu Trooper Limited w/TOD power/winter drive?


Isuzu changed trooper models in 1998-99 if yours is the older type then 1992-98 if the newer type then 99-05

Oct 11, 2009 | 1999 Isuzu Trooper

1 Answer

Oxygen Sensor on '99 Isuzu Trooper


The O2 sensor is on the engine side (up stream) before the catalytic converter in the exhaust pipe, it is barrel shaped about the size of a jumbo magic marker.

Sep 30, 2008 | 1999 Isuzu Trooper

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1992 isuzu trooper 3.2 DOHC 4X4 LOW IDLE GOES UP AND DOWN 750 RPM TO 1500 RPM


I had the same trouble with my 93 Trooper.

I went on a sensor-changing spree.

The one sensor that fixed this idle problem was the throttle position sensor.

You can get one here.

Throttle Position Sensor

It's very easy to change, and fixes the problem instantly.

Good luck.

Jul 22, 2008 | 1993 Isuzu Trooper

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