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Isuzu Trooper



  • I presume intake manifold gasket would be under P/T warranty? The problem is that it's been doing it for a long time and still no CEL. I am afraid that P/T warranty will run out and THEN the CEL will come on ... How much can it cost (if it is indeed intake manifold gasket) and what do I need to tell them to make them look into it, as opposed to spark plugs and other BS? also, as I wrote before, we left it with them for a day and overnight, allegedly they drove it and it didn't do anything of a kind....
    here is a link to the beginning of the problem:
    viktoria_r Jun 11, 2003 1:00pm
  • sbcookesbcooke Posts: 2,297
    There is a TSB at least for 1999s on the intake manifold gasket.

    My gasket issue would cause the cars idle to bounce a few times and then stall outright after a while. There was no issue while driving, only while stopped. - I believe this is it?
    SB00-01-S005 APR 00 Intake Manifold Gasket - MIL ON/DTC's Set
  • paisanpaisan Posts: 21,181
    I am currently running Scorpion ATs in 275-70-16. Unfortunately they don't come in 33"/ 285-75-16. I've had 45K+ miles on them and they have been great.

  • will you be getting a set of larger rims for the 285's or just put them on the Trooper's 16x7 rims?
  • paisanpaisan Posts: 21,181
    Not gonna be putting on new rims. If I were doing that I'd be going to 15" rims.

  • I went to turn on the TOD yesterday as it was raining hard, but it didn't come on. I got a check light for about 3 seconds then it went away. The symbol showing if the car is in 4 wd just kept blinking but never engaged. I stopped the car, turned off the engine, and pushed in the button but all it would do is blink with 2 wheel drive showing. I tried it while moving and from a stop, but it would not engage. I used the TOD about a month ago and it worked fine. The Trooper in question is a 2001 LS automatic with 45,000 miles. Any ideas what to check? The dealer is about a hour and a half away so will go there if I need to. Thanks
  • I put the new Bridgestone Dueler REVO's on my 2001 and I love them. They are quieter than the Dueler684's and seem to handle better also. They really grip well in the little bit of dirt driving I have done. Has good road manners and a nice look to them. I am very impressed with them. If you look at the reviews on Tirerack for the REVO's you will find many postive remarks.
  • paisanpaisan Posts: 21,181
    Sounds like the actuator for the front axle isn't working. I had this problem myself back in the spring after leaving it in TOD all winter it siezed the actuator. You could check the vacum lines down there, one might have popped off.

  • paisanpaisan Posts: 21,181
    Thanks for the input, keep the input coming!

    I hear that the Bridgestones also have a 3 year replacement warranty for road hazzard w/o a mileage requirement. That might put me over the edge for those tires.

  • bluedevilsbluedevils Posts: 2,554
    We had stock size (245-70-16) Michelin LTX M/S installed on our 98 Trooper @ 52k miles. We are past 91k, which for you non-math majors means the tires have almost 40k on them. Lots of treadwear left - all 4 tires had 10/32" as of 89,951 miles - and the Michelins seem to grip a bit better than the OEM Bridgestone Dueler 684. I love Sam's Club and Costco but would rather have a tire shop install and rotate my tires, so we had Discount Tire match the Sam's price to get the best of both worlds.

    I expect these tires will provide another 40k miles of good life, which will make me a very happy camper. If only I could get our Trooper to stop burning oil...
  • paisanpaisan Posts: 21,181
    You are a daring young father! I would not ride on 80K tires on my vehicles. At 40K i'm replacing my Scorpions, not cause of lack of tread, but cause I just don't trust tires with that many heat cycles etc. on them.

  • bluedevilsbluedevils Posts: 2,554
    Our 98 Trooper now appears to be using a quart in less than 1,000 miles. The rate has been increasing slowly and steadily for years now, and it is at the point where I am really concerned and may actually consider doing something about it besides topping off the oil!

    The break-in history of ours is unknown - we bought truck @ 7k miles; it was a corporate Isuzu vehicle before that. Oil weight and dino/synthetic have all been varied but nothing has slowed the increased consumption rate.

    Our truck is driven pretty gently - rarely above 4,000 RPMs, no towing, no offroading, rarely above 75 MPH, plenty of longer highway trips, etc.

    Consumption rate seems steady regardless of whether current oil is fresh or has 3k miles on it.

    I've never let the truck get more than a quart low, but burning a quart every 800 miles means I must remember to check it every 3-4 days to prevent it getting half a quart low.
  • bluedevilsbluedevils Posts: 2,554
    never thought about the number of 'heat cycles' on a set of tires. That is interesting, but I would need to hear more before that would make me nervous about using a set of tires for 80k miles. Are you talking about the number of times the tires have heated up due to driving on the road?

    My approach to tires is, if there's plenty of tread, wear is even, and everything looks right externally (no bumps, gouges, etc.) then there's no reason to replace 'em. Our minivan tires are starting to show their age at 26k miles, and they will probably be replaced by 35-40k even though they'll probably have some usable tread as defined by the tire manufacturers. I'm definitely NOT somebody who pushes the limit and squeezes every last ounce of usefulness from a set of tires.

    I was cautiously optimistic that these Michelins would yield 80k miles, and after getting halfway there I think it will happen. Pretty decent per-mile cost, figuring $450 for the set of 4. Probably should have traded the unused OEM Dueler 684 for a 5th new Michelin, but didn't.
  • bluedevilsbluedevils Posts: 2,554
    Considering replacing the PCV valve and having EGR valve cleaned. Should these be done at the same time, or one first and then wait a bit (few days to a week) on the other? My concern would be replacing/cleaning one of them but not the other, and thereby mucking up the cleaned/replaced one. This has me thinking both should be done at same time, but I'm looking for educated opinions.
  • Hey Mike,

    I've got a set of LT 285-75 Cooper S/T tires.

    On Road: They are noisy compared to an all terrain tire, but handle great for a mud tire. Gas mileage has suffered (about 3 MPG).

    Off Road: The off road traction is unbelievable. I have a 5-speed (non-TOD) and can run several trails in 2WD that required 4-high with my old Dueller A/T's.

    I have experienced very little tread wear at 10K miles. The coopers have an extremely deep tread depth and a very aggressive tread pattern. I have always used Bridgestones in the past, but went with the Coopers this time based on price. So far I have been pleased.

    Check out the specs below: - uck&id=190

  • sdc2sdc2 Posts: 780
    I have the Scorpions, but will look at something else next time for two reasons:

    1) I have had serious trouble keeping them balanced (which may or may not have anything to do with the tires).

    2) They seem to be priced almost $50 more per tire than when I bought them two and a half years ago.
  • paisanpaisan Posts: 21,181
    Yeah the MTs are cool, but I do way too much highway driving for MTs. I'd probably go for MTRs if I was getting MTs, have seen them in action and they are tough! :)


    PS: Are you coming to uwharrie in Oct?
  • Has anyone designed a way for Trooper owners to test their tires to help decide when to replace them? I have stopped buying tires based on tread life and instead buy the best performing tire.
    I have twice replaced tires that had good looking tread still on them. Once was because the side walls lost their shape and the tires were impossible to balance, they even made the steering wheel vibrate. The other time was when on a very cold morning on dry pavement I hit a jeep in front of me that had done a sudden stop, I had the distinct feeling that the tires did not grip very well at all. I did more sudden stops to prove it to myself then bought the Dueler H/Ls which stopped far better. When the Dueler H/Ls wore down to about 6/32 I changed them to the new at the time Revos which have been great since. The thing I like about the H/Ls and Revos is that the rubber gets softer as it wears and that is supposed to keep the traction better over the life of the tire at the expense of a shorter tread life. Give up some tread life for better performance is a good trade for me. The Revos have some technology that they say makes them rounder, I believe this because my Revos are balanced using the run out measureing balancer and the weights are just the smallest kind and one tire requires no balance weights at all.
  • Just completed two round trip excersions between Alabama and Ohio - probably 3500 miles total. New tires are Dunlop A20's 265-70-16. Average fuel economy was 17.5 mph - lot of interstate 73-80 mph. The new tires are really an improvement - even though they are P rated they ride very firm -cornering is much improved - its easy to see how the factory 245's were struggling with the size of the Trooper. Tires are quiet - some TOD time during heavy downpoors and had to lock it in 4WD low to get to a family cemetery plot in West Virginia - everybody at the grave site needed 4WD to get there. Oil consumption for entire trip was maybe 1/2 quart. Total mileage now at 42k - I think the battery is going out - have some surging in the morning when first starting the vehicle - last for 30 seconds or so - need to go to dealer for reprogramming - second time to shop in 2 plus years - Trooper is king - The Trooper is now my wifes car since I bought a Nissan 4X4 pickup - Nissan is O.K. - but when you climb in the Trooper everything goes up a notch or two.
  • paisanpaisan Posts: 21,181
    Glad to see all the good reports on the Trooper! I guess we'll have a pretty good group on here for about the next 5-10 years! :)

  • This is my 14,000 mile report on the Bridgestone Revos. A big thumbs up! Far superior to the Pirelli Scorpions that preceded them.

    I, too, was never able to get the Scorpions to run smooth. They just didn't seem round. They were also fairly loud after they got some miles on them. Traction was okay, but, in my opinion, poor in the snow. Wear was not that great. They were pretty much gone at 35K.

    The Revos are soooo smooth and quiet. I mean they are silent, even after the miles. No problem whatsoever getting them balanced. I'm waiting for ski season to see how they handle the snow. In all other traction conditions they seem to work great.

    I highly recommend them over the Scorpions.

    I am running 265/75-16's. This is the same size I ran in the Scorpions. The Scorpions were a "C" load rating. On the Revos I am using a "standard" load rating. The standard load rating tire is a wee bit narrower than their "C" rated tire and a little less stiff. I figured I didn't really need the C rated tire on the Trooper. I think that it turned out to be a good choice.

    Anyway, that's my two cents worth.
  • gprodick, what tread depth did you get on your 265/75 "standard" load Revos? Does that mean they are the P265/75?
    How often do you do tire rotation on them? My FireStone dealer recommended every 3500 miles for maintaining the quietest tire. I now have the free tire rotation deal at Discount tire because they are the ones I trusted to swap the Revos from my airbag-totaled 1995 to my 2001 Trooper.
    My 255/70 Revos were wonderful in the snow up North last winter. They now have around 15K miles on them. I hope to get through this winter and maybe next winter before changing to a 265/75 in 2005. The family minivan will be due for tires in 2004, so I want a little more time out of the Revos.
  • Okay, sounds good... is there a chain where I can buy them and have them mounted?
  • I only have a few thousand miles on my 255/70 Revo tires but I am very impressed with their grip, balance & quiet ride.

    I bought mine from a local Firestone dealer (shop several for the best deal) who quoted me less than the popular mail order stores. Also, no alignment was needed - was spec-on at almost 40k.
  • Just a quick note...

    My family was travelling on I-80 through Indiana and passed the Tirerack offices in South Bend. I was impressed that they had about 4 cars out on their test track doing hard braking in wet conditions (supplied by their sprinklers). All along I thought they were just another discounter...

    So I'll definitely use their ratings as they are pushing the rubber themselves rather than just regurgitating others' research.

    Our 99 S will need new tires before winter. As it doesn't go off-road except for a very occassional gravel road, we're looking at Michelins...

    Love that Trooper!

  • I'm starting to think this is the way to go - buy them from Tire Rack. I guess it's common enough now that lots of places would mount and balance them for me...
  • That's what I did with the Dueler H/Ls. When it was time for the Revos, the local FireStone dealer was able to beat the TireRack price and there were no shipping charges plus discounts on installation and free lifetime balance.
    On the other hand, the one guy I worked with at that FireStone is no longer there, he's manager now at a farther away FireStone and I don't like the rest of them, so my best local tire store is Discount Tire, they add the lifetime balance free when installing tires even if you do not buy them there.
  • sbcookesbcooke Posts: 2,297
    When I did mine, I was able to negotiate the price down to what it would have cost me if I had bought from Tirerack and then had them mounted balanced at the local shop. I was also able to negotiate a trade on my spare towards a replacement, I got $71 on my unused spare towards the negotiated price of approx $105 per tire.
  • paisanpaisan Posts: 21,181
    Since I'm a tirerack reseller I can actually go down to DE and pick them up :) Then I usually bring them to costco where they mount em/balance em for $10/tire :)

  • paisanpaisan Posts: 21,181
    I'm starting to lean toward the Revos. So far I've heard nothing but good things about them.

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