Last post on Aug 10, 2012 at 10:03 AM
You are in the Isuzu Trooper
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Isuzu Trooper, SUV
#2 of 25 Re: 2000 trooper repair manual [rocks911]
Jul 20, 2006 (6:55 pm)
I don't know where you can get a comprehensive manual, but I think they are expensive. Personally, I would do an ebay search and go to the local dealers that have sold Isuzu in the past but that are no longer Isuzu dealers and see if they would sell their old shop manual at much lower than the new price.
The rough idle at cold might be either a bad EGR (Exhaust Gas Recirculation) Valve which does not fully close, and that lets too much air in while cold. On my 2001 Trooper the EGR valve is known to go bad around 70K miles because the valve was poorly designed (a GM part) and the replacement is supposedly better and should last the life of the engine. Or there could be an intake manifold gasket leak, the intake manifold is built as a heat shield and is a complicated gasket, sometimes they crack.
The not quite cold A/C might be the extra fan in front of the radiator, it was added when Isuzu Trooper began using the new formula freon coolant, some Troopers with the new freon were built without the extra fan. I had a 1995 with the old freon, it was instantly ice cold, even on the hottest days I could not run it on high too long or the family would complain of being cold. Or you could be low on freon.
#3 of 25 Front Outer Axle Boots Leaking
Sep 07, 2006 (11:47 pm)
I took my '99 Trooper in for a oil change and the mechanic (dealer) told me that the front outer axle boots are leaking. The dealer tells me it will costs me $1247.02 to fix it and I am sick to my stomach. He told me it would be wiser to replace the axle as oppose to fixing the boots because of the labor costs. My trooper has a new engine, brakes, tires, the TOD system has been replaced, etc... Anyone have any ideas? I know replacing all these things are sunk costs but I have only a year left on the loan and I wish I could ride it out. How long before this problem becomes worse?
#4 of 25 Re: Front Outer Axle Boots Leaking [xyclonis]
Sep 08, 2006 (3:12 am)
Hi, It is not unusual for the outer axle boots (bellows) to eventually crack and leak lubricant (CV grease). What is important is whether or not the CV joints are clean and not making any noise or clunking particularly when turning. If the only problem is the tear or leakage of the bellows, then there are aftermarket boot kits which don't require the removal of the axle or disassembly of the joint to replace the boot.
Opinions will no doubt vary on the quality of the product, but as a stop gap solution, this would be the way to go if you do not want to tear down the vehicle.
A full line auto parts store should have or know where to get these boots. Basically, you remove the old rubber boot and clamps, install the replacement boot kit which has (typically) an overlapping seam that allows installation around the joint and new clamps that keep it closed and in position once it is closed around the joint.
My experience is that the worst part of the installation is the removal of the old clamps that hold the original boot on the axles. You also need to regrease the CV joint while you are in the process of putting the replacement boot on. If you have some mechanical ability and tools, this is not an impossible job. Otherwise, a mechanic,not necessarily a dealer, would be able to do this for you as well.
Here is what alldata says about the original parts and labor time, which might help you decide if you are getting ripped if you go to the dealer:
1999 Isuzu Truck Trooper V6-3.5L
Vehicle Level Transmission and Drivetrain Drive Axles, Bearings and Joints Axle Shaft Assembly Constant Velocity Joint Boot Parts Information
Part OEM Part Price
Constant Velocity Joint Boot
Outer Boot Kit 8971172210 $109.45
Inner Boot Kit 8971172200 $109.45
Labor Skill B
Constant Velocity Joint Boot
One 3.4 hr
Both 3.9 hr
For a dealer under warranty, they were allowed about 4 hours per side and the parts cost to perform the work...so about $440 for parts and 8 hours for the replacement of 4 boots and both axles. Dealer per hour charges vary. The replacement aftermarket boot is definitely cost effective. Look around. One owners opinion!!
#7 of 25 200 Trooper Code PO1310, What does it mean? by Tmac
Mar 05, 2007 (8:47 pm)
My mecanic and I were working on my 2000 trooper, changed timing belt, serpentine belt, starter, spark plugs and fluids. Now none of the left cylinders (3.5 V6 engine) are working and we get a code PO1310. There is spark going there but for some reason it is still missing. Any help will be greatly appreciated. Thanks. Tmac
#8 of 25 Re: 200 Trooper Code PO1310, What does it mean? by Tmac [tmacias]
Mar 07, 2007 (10:20 am)
The Power Control Module (PCM) checks the validity of the signals used in the ION Sensing module at the following engine operating conditions.
The Deceleration Fuel Cut Off (DFCO) test is performed to evaluate the Combustion Quality (CQ) signal pulse width if it is below a predetermined value, the value it is expected to be during DFCO conditions. If the CQ signal pulse width is above the predetermined threshold, the fail counter will be incremented. If the failure counter exceeds the calibration, then the test is complete and a failure will be reported.
The Power Enrichment (PE) test is performed to evaluate the Combustion Quality (CQ) signal pulse width if it is below a predetermined value, the value it is expected to be during PE conditions. If the CQ signal pulse width is above the predetermined threshold, the fail counter will be incremented. If the failure counter exceeds the calibration, then the test is complete and a failure will be reported.
The Combustion Quality (CQ) test is performed to check if inappropriate (CQ) signal status were detected. If missing CQ pulses or multiple CQ pulses or CQ pulse width calculation errors were detected, the fail counter will be incremented. If the failure counter exceeds the calibration, then the test is complete and a failure will be reported.
Conditions for setting the DTC
Ignition voltage is between 10 volt and 16 volts .
MAP sensor signal is between 26kPa and 100 kPa .
Fuel level is more than 10% .
Engine speed is between 650 rpm and 6500 rpm .
No Crank DTCs set.
No System voltage DTCs set.
Action Taken When the DTC Sets
The PCM will illuminate the malfunction indicator lamp (MIL) the first time the fault is detected.
The PCM calculates an air flow value based on Idle air Control valve position, throttle position, RPM and barometric pressure.
The PCM will store condition which were present when the DTC was set as Freeze Frame and in the Failure Records data.
Conditions for Clearing the MIL/DTC
The PCM will turn the MIL "OFF " on the third consecutive trip cycle during which the diagnostic has been run and the fault condition is no longer present.
A history DTC P1310 will clear after 40 consecutive trip cycle during which the warm up cycles have occurred without a fault.
DTC P1310 can be cleared using the Tech 2 "Clear Info" function or by disconnecting the PCM battery feed.
An intermittent may be caused by the following:
Mis routed harness.
Rubbed through wire insulation.
Broken wire inside the insulation. Check for the following conditions:
Poor connection at PCM - Inspect harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, and poor terminal to wire connection.
Damaged harness - Inspect the wiring harness for damage. If the harness appears to be OK, observe the moving connectors and wiring harnesses related to the sensor.
A change in the display will indicate the location of the fault. If DTC P1310 cannot be duplicated, the information included in the Failure Records data can be useful in determined vehicle mileage since the DTC was last set.
If it is determined that the DTC occurs intermittently, performing the DTC P1310 Diagnostic Chart may isolate the cause of the fault.
#9 of 25 starter/torsion bars
Nov 09, 2007 (12:48 am)
I was trying to remove the starter on my 99 trooper, and I started to loosen the adjustment bolt on the torsion bar. How do I get it back to normal so I don't mess anything up? "> :
Nov 09, 2007 (7:20 am)
I have only changed starter on 3.2 engine, but I have never heard of anyone having to remove or loosen torsion bar. Regardless, Generally you have to count the number of turns on the bolt, and even then you reinstall and then measure the height from the ground to the frame on both sides. I have read that 4 complete revolutions equals one inch of travel upward.
PS. Do a forum search and I am sure you can find someone else who has changed a starter on your model.
Nov 18, 2007 (8:16 pm)
i recently purchased a 94 isuzu trooper s, it has 133000 miles on it.i paid $1800 for it. i took it to the mechanic and he found some problems with it, he said the intake gasket has a small leak and the oil pan gasket has a small leak he flushed the transmission fluid, power steering fluid, did a front end alignment, replaced fuel filter,and cleaned fuel injector. and replaced the air filter. it ran about $460. not sure if it was worth it or if i got taken for a ride. any thoughts? also it runs a little rough at idle and when i go to take off it hesitates a little then goes. not sure if i should replace the spark plugs or if its the gasket leak causing this problem.