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Isuzu Owners Maintenance and Repair

3293 messages,  Last post on Mar 30, 2009 at 4:24 AM

You are in the Isuzu Trooper Forum. Your Hosts are steve_ & tidester

What is this discussion about? Isuzu Ascender, Isuzu Trooper, SUV

Your Community Leader is paisan.


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#3289 of 3293
Re: 4 Wheel Drive - Problem Engaging [belaircarguy] by 03Bob
Feb 15, 2009 (6:09 pm)
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Replying to: belaircarguy (Feb 14, 2009 6:44 am)

Well, the repair did resolve the problem. I now have 4WD when I want it. WOW.
I saw the part on Ebay, $179. I did not check with a dealer. The 4WD engages as it should, hot or cold. While I was at it, I figured this would also be a good time to drain & refill the differentials and the TOD(torque on demand) (thats where the fork slides a gear over the 2 shafts and makes it drive the front wheels) Switched to synthetic oil as we get some cold days here in the Northeast. Responds better when shifted into 4WD.
Not to bore you w/ details but.... the 4WD lever mechanically engages the transfer case and apparently it also sends a signal to the VSV(vacuum switch valve) that moves a diaphragm/shaft/fork assembly, routing the vacuum to the proper side to move that fork in/out of 4WD. I did purchase the shop manual for this rig, hence the long explaination. There you have it.
Glad your trooper works too.
#3290 of 3293
Fuel pump electric problem, only works when starter engaged by fixedit
Feb 17, 2009 (10:24 am)
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Yup, same old problem. After the pain in the Donkey replacement of fuel pump which was not needed!!! But in this case it was a good thing because the filter had fallen off.... but I have hot wired it, which now I know is the FIRST thing to do, and it works fine. So I was sure it was the oil level and yes it was 2 quarts low, but now it is at full and still pump will not work except when starter is engaged, so it starts and then cuts off. Now, I can't find my manual and don't remember where the oil sensor that sends the signal to allow the pump to work. it is a 1998 2.8 and I love it!! I even swaped engines with out a manual, Yea, So this is such a minor problem and very frustrating. I am about to hot wire direct to the ignition but want to know if it will hurt anything. Does the pump work all the time ? Does it have a pressure shut off? From what i can tell it simplu has a pressure relief valve on top of the pump but I don't want to burn out the motor since it is such a pain in the Donkey to drop the gas tank!! I think the nextrt time I'm going to cut an make an access pannel. I truely think it will take less time. I'm also pissed because the two bolts on the same side that hold the protective cover sheared off.. guess I have to weld something together. Well, If anyone has a manual for this year or knows about the pump electrical system please give details or email me with them at miracorercn.com Thanks and Blessing to all.
#3291 of 3293
Re: 1991 ISUZU TROOPER POWER ISSUES.. [atfdmike] by fixedit
Feb 17, 2009 (10:52 am)
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Replying to: atfdmike (Dec 17, 2006 8:52 am)

Not sure if this will help but be sure it is not in 4WD!! It is not supposed to go over 45mph I think. Just a thought. Also, I have slowly realized that it is ok to run the rpms up.I have a 4 banger and it loves to be run at 3k and higher. When I have been towing very heavy stuff up hills and mountains I always down shift right at 25k rpm and it will rev to about 35k.. just let it wind happily along.... However check with others about the v6 motor... I din't know they made a v6 that was so small?? my 4 banger is a 2.6 and kicks butt, with great gas miledge!!! The best work vehicle I've ever had!! Just a pain in the Donkey to work on!!!!
#3292 of 3293
Re: Fuel pump electric problem, only works when starter engaged [fixedit] by tkem12
Feb 17, 2009 (7:31 pm)
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Replying to: fixedit (Feb 17, 2009 10:24 am)

It could be the theft deterrent circuit. Your key has a chip in it,if the resistance is high / low or the reader is bad the engine will shut down after a few seconds.
#3293 of 3293
2001 transmission and tod issues by margaret3000
Mar 30, 2009 (4:24 am)
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Recently had the transmission slip issues and took it to a transmission place who told me the transmission was full or fluid and when the opened up the pan there was a ton of metal. He rebuilt my transmission replacing a pump and other necessary parts. Took it home where the temperature light went on. I stopped the car it was dead. They shop took another look and said it was a shift on demand issue, he repaired that. Brought it home where it ran like a new car for 24 hours then began to feel sluggish again. Now when I shut the car off the parking lights stay on if I lock it. I am not mechanical in any sense of the word!! Does this sound familiar??

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