Question about 1989 Isuzu Trooper

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Isuzu trooper 1999 just started to leak oil and lost oil pressure, is this a major repair or could there be a very simple cheap fix

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Leak oil from where?/ Please be more spacific. If it is from the front harmonic ballancer then it si a pain in the Donkey but not expensive, rear seal.... not good, valve cover, no biggie etc.

Posted on Feb 16, 2009

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2001 izuzu tropper 3000 wont start... Injectors replaced, 12V ok on the injectors, Can it be anything related with the oil pressure on the rail (injectors)?


oil viscosity is very important, and yes if the rail oil pressure sensor is not reading correctly at least 3 to 5 Mpa while cranking the injectors will not be turned on by the engine ecu. if you can get a scan tool look at rail oil pressure sensor reading just after cranking it should drop to 0 to 0.5 Mpa if any different its no good, also check for oil leaking out of main injector harness connector near engine oil dip stick if oil leaking out of connector this pressure switch which is in oil rail under rocker cover is no good and injector harness needs replacing this is very common.

Oct 02, 2013 | 1999 Isuzu Trooper

1 Answer

I`m sorry i don't speak inglis but the car lose oil sometimes


check valve covers, oil pan gasket, and oil filter itself for leaking. have a good day !! you may also want to replace pcv valve if bad it will draw oil into throttle body and burn it up. and deposit oil in air cleaner. a pcv valve is used for crankcase pressure. if bad it can even cause a leak from a gasket.

Jan 13, 2011 | 1999 Isuzu Trooper

1 Answer

Massive oil leak from somewhere in back motor, lost 5 qts in 3 days. not sure where to repair


Loosing that much could only be the oil pressure sending unit. They blow out. I don't know where yours is exactly, but they are usually on the top, center of the engine in the very back. About three inches long and have a base about 1 1/4 inches in diameter.

Nov 26, 2010 | 2001 Isuzu Trooper

1 Answer

Major oil leak near timing cover oil escapes under pressure


front seal near timing sprocket may be compromised. real simple to fix and the seal itself is dirt cheap but it will require some getting dirty.

May 25, 2010 | Hyundai Motor 1999 Elantra

1 Answer

1996 Trooper with pretty decent rear main leak. Can this be repaired without pulling the engine? Also not holding oil pressure, I assume the leak is the issue as I see no other problems but open to...


Bad leak at the rear main wont give you low oil engine pressure ,its sign that the main bearings are worn or the thrusts .
Check the crank pulley end float and lift first but the main can be done in place drop the gearbox and flywheel.

Dec 30, 2009 | 1996 Isuzu Trooper

1 Answer

Oil leak


Sounds like the High Pressure Oil Pump mounting O seals. See if the soundproofing under the pump is soaked in oil to be sure.

Apr 05, 2009 | 1999 Isuzu Trooper

1 Answer

2001 Trooper turbodiesel oil pressure gauge


Drop the tin sump and check the pick up pipe as the pipe can crack and the seal goes hard so lets some air air in for a bit .

Mar 08, 2009 | 1999 Isuzu Trooper

1 Answer

Isuzu trooper engine stops while driving


If its the 3.0 diesel it could be the rail oil pressure sensor starting to pack up .

Jan 21, 2009 | 1999 Isuzu Trooper

1 Answer

1999 trooper 4JX1 fuel black


engine oil leaking past injector O rings and going into fuel return hose back to tank contaminates tank. if recall done are O rings ok? can put clear plastic tube on return fitting in rear of head to see if black (contaminated with oil) or air leaks, from cold start, it isnt high pressure
it could be from before or now?

Oct 30, 2008 | 1999 Isuzu Trooper

2 Answers

2001 Trooper turbodiesel oil pressure gauge


check oil pressure with test gauge from near large engine oil filter and cooler assembly, to rule out sender unit issue, if same readings check oil pick up sucking air O ring leaking?
releif valves in oil filter cooler assembly, stuck/jamming open?
if vehicle has been sitting for a couple of days and this happens light should only stay on 1-2 seconds go out and then gauge starts reading
have seen this on older higher km vehicles bad ones have balance shaft centre journal in sump worn out (new sump)

Sep 18, 2008 | 2001 Isuzu Trooper

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