Last post on Dec 20, 2011 at 7:53 AM
You are in the Isuzu Trooper
What is this discussion about?
Isuzu Ascender, Isuzu Trooper, SUV
Your Community Leader is paisan.
#3086 of 3299 Re: Idle problem at startup - 2000 Trooper 3.5 Auto TOD [bahmed]
Sep 15, 2006 (10:23 am)
Dealer called this morning. Said problem is with MAP (Manifold Absolute Pressure. The service rep said the voltage was off causing it react much as if there was an intake manifold gasket leak. The MAP was replaced yesterday and codes checked. The Trooper was restarted this morning (outside temp around 58 degrees) with no abnormal idle or flashing CEL. Hope this takes care of the problem; I'll drive it myself for several days to see what happens. The dealer (Duncan Jeep/Isuzu in Blacksburg VA) had already changed the intake manifold gaskets based on the symptoms. I did not have to pay for the gasket change since that did not fix the problem; kudos to them! Appreciate the help and I am sure your input help put them on the trail to the problem. After your initial assessment I asked the service manager if they had checked to ensure the ECU and any related sensors were within specs. He was pretty insistent that it was the manifold gaskets since they have had problems with them in the past. Unfortunately, sometimes we zero in on the "usual" problem and same old solution when that is not always the case. I think you gave me some insight to make them think about it a bit more. Again, thanks and will keep you posted if the problem reoccurs. Cool site!
#3087 of 3299 Re: 1999 trooper please help [atfdmike]
Sep 17, 2006 (5:08 pm)
I have a similar problem with my 2001 trooper (2WD). I have determined that the sound is coming from my right rear wheel. From in the car, it sounds like a "waw, waw..." noise starting at about 10 mph, and the only thing that makes it quit is by stopping the car. From spinning the wheel, it sort of sounds like a grinding noise. I am not sure if it would be the wheel bearing, or an axle bearing.
Anyway, what would be the best way to determine which it is, and how difficult is it to replace? I am fairly mechanically inclined, and have access to tons of tools (auto-hobby shop on base).
Also, where can I find a maintenance manual for my 2001? I have looked and looked, and cannot find one anywhere.
#3088 of 3299 Re: 1999 trooper please help [asoupley]
Sep 18, 2006 (7:12 am)
Hi, Are you sure it is not some component of the brake system that is causing the noise? That would have the highest probability of causing a noise. You have an internal parking brake shoe system that can cause an intermittent noise. Removing the caliper and rotor may help you isolate, but if it is a bearing, the outer usually is the one that goes first. They are not too hard to do, and the seal will need replacement too. You could try an online manual at alldata.com if you cannot find one locally. I am sure that a Chilton or other publisher can also be found, if you have the time. I bought mine on ebay, used. Hope this helps.
#3089 of 3299 Re: 1999 trooper please help [asoupley]
Sep 18, 2006 (7:20 am)
Well i had the chance to look at the hoses in the light of day and I lucked out, it was a hose on the back of the motor, totally blown out, well, a lot easier than any freeze plugs, thanks for the insight.
#3090 of 3299 Re: 1999 trooper please help [atfdmike]
Sep 18, 2006 (5:11 pm)
Atfdmike, thanks for the quick reply AND the drawing. I checked the brake and parking brake, and it still makes the noise even without these components on the axle. I am pretty sure it is the outer bearing as well.
You said that I need to replace the seal? NAPA lists an inner and an outer seal. I am assuming that this is the outer seal I will need? Are these the only two parts I need to buy?
Thanks again for the help.
#3092 of 3299 Putting non Isuzu parts in a trooper...
Sep 18, 2006 (7:24 pm)
My kid is at it again, your advise last time was of great Value... He reversed his leaf springs and you guys predicted damage and guess what you were right... Leaf springs are back now in the proper way.
He cut his fenders at school today and but 34" tires on his 1996 trooper. he is parking it at the schools shop and is buying a Engine and drive train out of a 4cyl 2.4 lt 1986 Toyota pickup. He is under the idea that its going to cost about 100 bucks more for parts to get all this in. Im thinking is going to be way more but I need info from you guys.
Right now he is running all stock execpt for these tires.
I dont want him doing this if its going to cost allot because he does not have the money to do it.
here is a photo of his rig...
#3093 of 3299 Re: Putting non Isuzu parts in a trooper... [ammodog]
Sep 19, 2006 (1:04 am)
He will need many new parts to mount the Toyota engine with proper wibration absorption and get the exhaust system to work, maybe need to change an expensive catalytic converter if he is subject to emissions testing. There is an engine computer in the 1986 Trooper, probably also an engine computer in the doner Toyota, he will need to research carefully all the inputs to the computer he chooses to use and se that all are the proper type. Some sensors might be on the Isuzu stuff he wants to keep that is not mounted on the engine directly.
On the flip side, Isuzu makes a tough engine, it could be rebuilt if the need of a rebuild is his motivation for less expense than the Toyota swap in my opinion. Or he could look for another Isuzu engine in a junk yard that is known to fit.
With a lot of carefull labor and design skill to make custom adapters from raw materials available free in the shop, he could make it work on the cheap, but how well will it work?
#3094 of 3299 Re: Putting non Isuzu parts in a trooper... [ammodog]
Sep 19, 2006 (6:06 am)
I'm with Boxtrooper on this one too! Just the electronics is going to be a nightmare, and even if it is an older, non computer engine, he is going to need to make provision in wiring for the starter, alternator, grounds, ignition and not even to mention the need to fabricate engine and trans mounts ( including possibly moving a cross member, accelerator linkage, trans shifter linkage, drive shaft length changes,etc: This project would test an experienced mechanic, but to do it at school, part time, with little technical support would be daunting. Maybe it is time to "remind" him of the spring rework and suggest a slightly less radical rebuild of his existing powerplant. He can do that in a high school shop, get lots of technical support, and if he wants more of a challenge, then rebuild the trans too! Just one guys opinion!
#3095 of 3299 2000 trooper's "check trans" light on, please help
Sep 21, 2006 (6:26 pm)
I found my 2000 trooper's Check Trans light on. It is 4x2 and has no problem before. At low speed, when I speed up slowly, I can feel the shake of the car. We love this car. Please help