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Jeep Wrangler Maintenance and Repair Questions (1997 - 2006)



  • erickplerickpl Posts: 2,735
    Valvoline Durablend Semi Synthetic - that is what I was thinking of.

    Mac is there any problem with the 85/140 for the diffs if you're NOT towing?

  • mac24mac24 Posts: 3,910
    No, but it will hurt your wallet to the tune of about $4 for both axles, a price worth paying IMHO. ;)
  • erickplerickpl Posts: 2,735
    Ouch! That's steep. That means I would have to miss getting a Taco Bell lunch! :) hehehe

  • Missing lunch at Taco-Bell is not a bad thing...
    You drive a Jeep, right. 'Venture off the Boulevard, yes.
    ...maybe find a place where the menu is in Spanish and the waitress has dark eyes.
    Good real food, on a plate not in a sack.
  • mac24mac24 Posts: 3,910
    Good real food, on a plate not in a sack.....

    There are places that serve food on plates!!!!!

    I must get out more! :)
  • I recently purchased a 1997 Wrangler, the fan switch only operates on high.

    Can the switch be replaced indivdually or doI need the whole heat/air unit?
  • mac24mac24 Posts: 3,910
    Yes, the switch can be replaced on its own, but while it may be the cause of your problem it's just as likely to be the resistor pack which is inline with the fan motor. You'll find it located at the bottom of the HVAC housing in the passenger footwell.
  • Be aware the switches on these jeeps usually burn out due to another problem. ...faulty ground...loose connectors...
    Thax Chrysler-Plymoth-Dodge
  • I just bought a 1999 Wrangler Sport 5speed. I’m having trouble getting it into 1st and 2nd no matter the conditions or where I push the clutch to. Sometimes it will go into second but still grind (grinds rarely going into 5th as well). No problems with 3rd or 4th. I was told that new gears were put into it, but am unsure how that would affect anything. It also has a 4in suspension lift. Any ideas on what I should do?
  • mac24mac24 Posts: 3,910
    There are several possible causes of your problem. First, your clutch may not be disengaging fully. This could be caused either by the clutch itself, the pressure plate or the thrust bearing, or by a hydraulic problem with the release mechanism.

    Second, it could have the wrong oil in it. If it's cold outside and the transmission has inadvertently been filled with a heavy weight oil it will be difficult to engage any of the gears.

    Third, and most likely, you may have worn synchromesh collars, which usually appear after high mileage or incorrect lubrication (using GL-5 instead of GL-3).

    Fourth, a poor quality job may have been done when the 'new gears' were fitted.

    Fifth, depending on your particular lift, the gear lever may be restricted in its movement and be striking the console or tub aperture before gears can be properly engaged.
  • I have an '02 Wrangler Sahara. My engine light will come on periodically and stay on for a day or so and then go back off. I have checked everything that I know to check as well as what the owner's manual say's (which is basically check the fuel cap), but nothing. I have noticed that while it is on it will slightly jerk occasionally while I'm driving, but other than that it appears to run fine. Any ideas what might be causing this?
  • div2div2 Posts: 2,580
    Any ideas what might be causing this?

    It could be any number of things; Autozone will read the codes for free. Find out what they are and check back with us.
  • I just want to say that this is my first time using a forum and how much I appreciate the response. What you’ve said makes a lot of sense to me, and a few things you’ve mentioned are exactly what I and a couple of friends thought of. Again thank you for the professional advice.
  • mac24mac24 Posts: 3,910
    Glad to be of help, though I've given you plenty to investigate. Please post back when you have a final solution.
  • cbeascbeas Posts: 14
    I have an '04 Sahara with dual tops. My wiper does the same thing with the hardtop. I didn't have that problem until I changed my spare tire to a 31" tire. I think it puts a little backward pressure against the brake light housing which causes it to come into contact with the wiper. I've thought about putting a washer or 2 beneath the brake light housing to raise it up a little and see if that helps. I just never think about it until I'm out driving in the rain. Let me know if you figure out a solution to yours. Once I put the washers on mine I'll post again to let you know if it worked.
  • If the 31s are pushing the brake light back you might try a wheel spacer.
    Sometimes cheep on ebay... rs-B_W0QQitemZ180063022643QQihZ008QQcategoryZ33749QQrdZ1QQcmdZViewItem
    Woha this might be the longest link in the world.
    They come in pairs so you can use one on the JEEP and play tuff guy frizbee with the other.
  • We are the proud owners of a 2000 Jeep Wrangler TJ Sahara. It is the first time we have owned a jeep wrangler and really love it. Neither my wife and I have much knowledge of cars and we are a little worried that our jeep begins to make a reasonably loud noise, possibly caused by vibration at exactly 50mph, which tails off at 55mph but comes back again between 60mph and 70mph. Before we bought the jeep we had a complete car inspection and nothing wrong was found. The mechanic suggested getting the wheels balanced. We did this at Walmart, but the problem persists. Could Walmart have not done it correctly, or do we have another problem, or is this just how jeeps behave? Help, we love our jeep and want to know its not going to blow up any time soon!
  • mac24mac24 Posts: 3,910
    No, this isn't how a Wrangler normally behaves. If WalMart had done a poor job of balancing the tires (and the tires are the cause of the problem), then the symptoms might have changed but they wouldn't remain the same.

    I would suggest that it might be a worn universal joint on the propeller shaft, but it's really hard to make an accurate guess at this distance. Why not have a mechanic ride with you so that you can point out the noise first hand?
  • div2div2 Posts: 2,580
    Could Walmart have not done it correctly, or do we have another problem, or is this just how jeeps behave?

    Sounds like tire noise to me. The tires may be cupped or have some other odd wear pattern. FWIW, I also think that a competent inspection would have revealed the problem prior to purchase.
  • High speed shakes due to tire problems are pretty rare.
    Not as rare as a real mechanic at Wally World.
    Not impossible, just not the first place I would look.
    I would look into other drive line problems.
    There are eight universal joints on these little Jeeps. any one can cause this.
    Any other loose or worn drive line components ie. motor, transmission, transfer case momounts... Clutch pressure plate, throw-out bearing...wheel bearings...ect.
    Get a creeper, a light and a rag...crawl around under the Jeep...wiggle things an look for stuff that looks wrong.
    Get to know and love the dirty bits of you Jeep as much as the shiny parts.
    Good luck and Happy Jeepin'
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