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Isuzu Trooper



  • sdc2sdc2 Posts: 780
    It's great to hear you sort out the problem without the dealers "help".

    I have made it a habit of switching into 4WD when I drive on the dirt roads at our lake cabin, and of course I use 4WD quite a bit during the winter, so hopefully I won't have the same problem...of course with the road salt and corrosion, who knows.
  • tkevinblanctkevinblanc Posts: 356
    I noticed a smell from mine a few weeks ago, too, but I never stopped to explore it. It was when I was backing my trailer up the driveway in 4 low on ice/snow... wasn't pretty. Anyway, I'll have to crawl under there and look...
  • cmunizcmuniz Posts: 604
    Great explanation of the problem and the fix. My trusted mechanic told me last year to make sure and switch the TOD occasionally so it wouldn't get stuck. He said he has replaced a bunch of those switches on Troopers that are left on 2WD most of the time. I am happy to hear that he was right on the money with his advise and gives me more confidence in his work going into the furture since he is not part of the Isuzu network.
  • bsmart1bsmart1 Posts: 377
    I had about that same problem with the SOFT on my 97' Trooper. Back then they didn't have the button on the dash, the SIFT was activated by the lever on the floor. One of the 2 solenoids on my unit failed in the 2WD position and would not move when voltage was applied. I did some of the same things, but without eventual success. I had to replace the SOFT unit (you can't get a single solenoid alone) and the unit cost $125 from St. Charles. I still have the GOOD solenoid from the unit for future use if necessary.

    Great write-up of your testing, by the way. I'm curious, when you 1st tested that suspect solenoid, could you hear it SNAP when you applied voltage to it? I could never get mine un-stuck enough to get any movement or a snapping sound. You are right about all those hoses coming to the SOFT. Its quite tricky to figure out what ISUZU was doing, much like a spiderweb.

    Happy Trooping !!!
  • cwmosercwmoser Posts: 227
    Its amazing how much better handling improves after about a 100 miles on a new set of tires. When my 255/70/16 Bridgestones were brand new, they felt kinda lead footed. Now these tires seem to handle much better than anytime I can remember my Trooper handling. I don't recall this dramatic a difference in any other vehicle I have owned. Anyone with similar experience with new tires?
  • chporterchporter Posts: 8
    bsmart1: yes, my solenoid definitely made that 'snap' sound when hit with the 12 volts from the battery, but the opening and closing of the switch still didn't allow any air to pull through the metered takeoff on the switch. That's what the degunking accomplished,I guess.

    For those that haven't inspected their SOTF unit. (say that with a straight face) you'll find that such vacuum solenoid switches actually have air passing through them at all times. In theory this keeps them from gunking up. When power is supplied to the solenoid, it snaps open access to what must be a very tiny internal hole that puts vacuum on the shift mechanism diaphram through the third outlet on the switch. It's that tiny hole that got clogged on my 99 unit. Just doing the gentle reaming and the carb cleaner job on it did make the resulting 'snap' a bit louder, so it was definitely getting sticky. On first install it inconsistently brought the truck into 4WD. That's when we decided to try the carb cleaner and that seems to have done the trick, opening the hole up to spec, I theorize.

  • chporterchporter Posts: 8
    I ignored the original Bridgestones on my 99 Trooper long enough that they started cupping on the inside edges (fronts) and so had a pretty bad ride before I got religion about rotating the tires. I replace the Duelers with Michelin CrossTerrains and absolutely love them. They're pricey, so I'm certainly rotating them regularly at ~5000 miles. An incredibly smooth ride on the road, and great for the two tracking I do in northern Michigan.

    I didn't notice any particular break-in period with the very supple Michelins but can certainly believe that there can be such a period with certain tire models.
  • boxtrooperboxtrooper Posts: 843
    We have seen the same thing on my Trooper and my wife's Silhouette. Tires make a huge difference in ride and handling. We bought a new Silhouette (with sport suspension as much as that can apply to a minivan) in 2002 and one of the factory tires was so bad it could not be balanced. We were about to take a trip and for some reason the Silhouette dealer had to order the replacement tire, so, since we know about the difference good tires make we went ahead and swapped out the entire factory tire set for a good set of Michelin Pilot XGT-H4 if I recall the numbers corectly. The wife was very happy. I got some trade in money for the factory tires with only 19 miles on them and delivered the dealer replacement tire for trade still in the wrapper.
    I have the Bridgestone Dueler tires on the Trooper because of their softer rubber underneath feature which attempts to maintain traction as the tread wears by exposing grippier rubber. I have had a set of Dueler H/L and now have a set of Dueler AT Revo because I like the idea of deaper tread for not getting stuck. My Firestone dealer recommends rotating the Revos every 3000 miles to be extra careful about keeping them quiet.
  • bawbcatbawbcat Posts: 118
    I also had the same rear diff leak on my 98 Troop that I think many of you have described here recently. The leak is on the front side of the rear diff where the driveshaft connects. Could see fluid flung onto the underside of the body. Could also smell the fluid occasionally after a drive. Turned out to be the pinion seal. Was repaired by a dealer under the 60k drivetrain warranty. Given the number of reports here, I would suggest that everyone check this if you still have warranty left. I also had a leak at the xfer case where the front driveshaft connects. I'm glad I got these fixed under warranty, since I only have about 1 month left!
  • paisanpaisan Posts: 21,181
    not covered on the powertrain warranty. Just an FYI....

  • sdc2sdc2 Posts: 780
    under the powertrain warranty...the TOD unit, the fuel pressure regulator...I'm not surprised the SOTF unit isn't covered either.
  • paisanpaisan Posts: 21,181
    The TOD unit is covered (the transfer case portion) IIRC.

    My extended warranty has already paid for 1/2 it's value and I only have 513 miles into that warranty! :)

  • jimmyp1jimmyp1 Posts: 640
    From Autoweek regarding the NY Auto Show...


    Isuzu will make three announcements. The first is expected to be the unveiling of the Rodeo replacement, which will debut as a 2004 model. The company also will introduce engine technology that will be available for the 2004 model year and discuss an SUV that will bow for the 2006 model year.

    That last sentence is interesting. I hope it's the big one we heard about and not a small SUV.

  • paisanpaisan Posts: 21,181
    NY show...

    What we'll see is:

    1) Rodeo 2004 = Trailblazer SWB
    2) Diesel Engines Available
    3) Trooper 2006 = ster.html

  • tkevinblanctkevinblanc Posts: 356
    Well, I guess 2) and 3) out of three ain't bad...

    Sigh. Another GM clone. The Rodeo chassis has got to be easyand cheap to build. Why another clone? Why why why?
  • I hope it looks better in person.
  • sdc2sdc2 Posts: 780
    I think it looks pretty good. At least the approach/departure angles look to be a huge improvement over Ascender, for those of us who actually go off road.
  • sdc2sdc2 Posts: 780
    I can't find transfer case listed anywhere on the "What is Covered" list. The "transmission case and internal parts" are listed, but NOT the transfer case. (this is for 1999 models)
  • paisanpaisan Posts: 21,181
    After dealing with Isuzu customer service several times on another item I wanted to get warranties (the wiper arm lower portion) and finding out there is 1 person who answers the phone at Isuzu customer service for the NE and 1 guy answering the general #. I've pretty much given up on Isuzu vehicles. They were extremely rude, after I asked them to open a case and I'd like to meet with the rep for the area, they blatantly said "nope, we don't do that, you are SOL". They are great vehicles, but they have the worst customer service. Makes me sick to even own one. But deep down I know they are great trucks so luckily I don't need warranty work done often.

    My wrap around service plan from is covering the SOTF and seal problem.


  • raydahsraydahs Posts: 449
    If you get the outdoor channel
    and want to see a TV article on the 2002 ARB project Trooper, it's in the first 10 min. of the show.
  • sbcookesbcooke Posts: 2,297
    I agree, it is difficult to get too much warranty service done. I have found a shop that will do it, but I have to drive 30 minutes and it always takes more than 1 trip...once to diagnose and then 2 weeks for the part and then another for the repair. Though they still sell and service them...for now.

    I have called the 800 number to review issues and have gotten the same thing...I think the guys name is Derek? He told me "Don't call here everytime you have a problem with a repair, go back to the dealer first."

    I love my truck, but will almost be happier when the warranty is gone and I have to just "live with" some of the minor things.
  • paisanpaisan Posts: 21,181
    Is great, they are dead on balls with their diagnostics, but the problem is with Isuzu and their warranty policy. I know the dealership's hands are tied as far as whats covered and what's not.

    How far are you from flemington Isuzu? They have an awsome rep, you might try them. I use Open Road in Edison.

  • sbcookesbcooke Posts: 2,297
    over 1 hour and highway miles. Not quite a trip with wife/kids in tow that I can make.

    I only have one annoyance right now...There is slack in the steering that I can feel when I turn left or right. I had the steering column replaced last year because there was wear in the column coupling, but they didn't replace the worm gear. I am going to get it up on jacks this weekend and check tie rods etc and then try the steering gear adjustment listed on planetisuzoo.

    They tell me play/slop is "normal"...normal or not I want it fixed, so I am going to try to adjust it myself and then if that doesn't work ask to have the steering gearbox replaced...they said they would if I kept having trouble...the main issue is going back and forth, so an attempt to do it myself seems warranted.
  • paisanpaisan Posts: 21,181
    hard/easy it is to make that adjustment. I would like to tighten mine up a bit too.

  • sbcookesbcooke Posts: 2,297
    What do you notice? I can feel a very small click sometimes when I turn left to right or right to left...or all the time if I wiggle it back and forth on center.

    After reading the article and doing some research it seems like I have slack in the ball bearings in the steering gear, not a problem with gear contact. I am not sure, but I think the adjustment just pushes the gears together or apart depending on the adjustment, not any slack in the bearings? But it seems like an easy thing to try first.
  • paisanpaisan Posts: 21,181
    have a not as tight as new feeling in the wheel.

    I may get a stabilizer shock when I go with the 285-75/ 33" tires.

  • cracoviancracovian Posts: 337
    Someone made a comment about Paisan's expensive bulbs, so I'd like to present you with an excellent alternative. I replaced mine almost a year ago with a pair of Japanese-made 9004 MTEC found on ebay for $20-$25. They're very durable, very bright (not blinding though) and for the price, are the best ones out there...
  • I have the same slight "click" feel when turning right or left. It's been there since my truck was new in '99. I was worried that with age the problem would grow, but at 90K it has remained the same.
  • With our Troopers getting older by the day, I have a question for some of the regular posters on this board.

    What is on your short list(top three)as a replacement for your Trooper when the time comes?
  • tkevinblanctkevinblanc Posts: 356
    There is nothing that can replace the Trooper.

    When the time comes, I'll replace it with something smaller that gets better gas mileage that's still 4WD. Subaru Outback or Forester is high on my list.

    And I don't like the feeling on this board over the last week or so... like someone gut-punched everyone. Is it just the realization that Isuzu is not treating an orphan vehicle as well as they might? And that the Isuzu dealerships are disappearing and selling mostly Chevys?
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