Question about Isuzu Cars & Trucks

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MY ISUZU KB250 2006 STARTS WITH ROUGH IDLE IN THE MORNING AND CUTS OUT AFTER A CONSTANT RAVE OR WHEN YOU SLOW DOWN AT INTERSECTIONS.

WE CHANGED THE GLOW TIMER RELAY AND ONE OF THE TEMP SENSORS ON THE THERMO HOUSING AND ALSO BY PASSED THE LIFT PUMP STILL THERE NO CHANGE.PLZ HELP

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  • Isuzu Master
  • 20,706 Answers

Where are you , this is a USA forum and we dont have KB here.
my guess, is car is in Africa or Australia?
2.5L engine> 4 cylinders. what engine, use real name of engine.
its diesel got that.
Fuel injections systems vary by country....so no country no joy , sorry but bet the 3 person ever to tell country there... "!!!!
so I answer non specifically...... do to that....
Diesel 101:"
does it run for short time on test fuel?, if yes engine is ok if it sounds ok. if not, then the engine is bad (compression checks)
(fuel in a spray bottle means test fuel) sprayed in to the air induction."basics"

filters are next,
fuel pressure tests. (on common rail very tricky this)
glow plugs, i check current on each plug wire. (a meter with amp clamp device, mag sensed current)
it must flow huge current here, if not the plug is dead. one or all.

is the system primed?

Posted on May 13, 2015

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Posted on Jan 02, 2017

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what engine is there. some 2.5L but what, gas or diesel?
exactly real engine name... is best.
this usa forum we dont have KB here. ZERO !
and isuzu died here from 2004 to 2008, 1 by 1, ended.
but zero KB here, zero books, and your engines.
you should post to your unstated countries forum on Isuzu.

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wow NO YEAR CAR STATED are you kidding?
what country you just posted a non usa car on a usa forum.
so what engine>? cant fix engine (any) not knowing that.
seems like Diesel, (Glow plugs)
seem you are guessing?

if diesel is it direct injection? we cant guess that either.
but if it is ,ever use a scan tool;?

what car, kb250 something, is it a pickup truck
what engine,
what country.
what miles.
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the pumps are run this way to prevent CRASH on burn , like seen on TV, ever see one for real.? not pretty, (cant unsee that.... ever)

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