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Jeep Cherokee



  • At approx. 76,000 miles the check engine light came on and idle speed seems to be alittle high even though the heater/ac is off. Happened once before at 12,000 miles, then under warranty, the dealership replaced the fuel pump gasket which fixed the problem. Now, I think the problem maybe one of the O2 sensors. (1) Does anyone know if its possible to test these sensors with an ohmmeter? and if so, what kind of readings should I get? (2) Also, if I replace the sensors or any other part, will I need the computer to reset the light?
  • Before you start throwing parts at it, have the codes read. You can either take it to AutoZone, or some other parts store, and have them read the codes for free, or you can buy your own scan tool. A scan tool will allow you to pull the codes, find out what they mean, and erase the code to turn off the check engine light when you're done. They can be purchased for under $100 for the basic model. I have the $150 model. It has saved me and my family/friends well over $1,000 in diagnostic/repair bills. Best of all, you can use it on all your other OBD-II cars as well. All 1996 and newer cars are OBD-II compliant.

    As far as I know, you cannot test an O2 sensor. If I'm wrong, hopefully someone will chime in and correct me. I'd love to have that little piece of knowledge stored away. :D

    Your high idle could be nothing more than a vacuum leak.
  • fastefaste Posts: 7
    have 02 jgc that has visited dealer 11 times for same engine problem while under warranty. each time i got a different answer. vehicle now out of warranty but have extended warranty. vehicle has not had problem for 8000mi but now has valve tap for 5 min when started cold. i use syn oil and change every 3500mi. have filed lemon law back in feb 05 and won arbitration case in oct 05. chrysler appealed and now have court case set for april 07. can't get case heard in court any sooner. any replies or help would be appreciated.
  • Thanks for the good advise. I'll run a scan.
  • Anybody know where I can get internal engine parts for a 1996 Cherokee 4.0L? Besides the dealership? Seems as though everyone has parts for 1995 and older. I've tried a couple of local parts stores and spent hours looking online. I doing a minor rebuild for an engine swap into my Wrangler and I really need new rings and bearings.
  • Has Anyone put aftermarket spark plugs in the cherokee with the straight 6 i want to do the platnium plugs. Need a lil more power? What type of plugs did you guys use and what did you notice...
  • I use stock plugs and think platinums are a waste of money since it's a rather low tech engine and doesn't require them. You won't notice any difference except your wallet will be lighter. :)
  • yes I have used the platinum plugs worked great noticed faster starting etc.however my old plugs were shot so any improvement was better alot smoother idle though better on fuel noticed. :)
  • at idle it makes a scraping sound not in the cap but lower say on the distributor shaft it is pretty loud any of you ever get that???my jeep is an 89 4.0L just wondering if I should yank the distributor out for an inspection,also my idle seems to go up and down about 50-79 rpm at idle like it stumbles a bit any thoughts?? :confuse:
  • Hi:
    I have the classic problem of oil leaking from the rear main seal. My husband took it to his mechanic (a bozo) to have it fixed but the repair was not made properly so it still leaks. Other than that my "92" runs great, it could use something for extra power though. I want to keep it because I love it, he wants to get rid of it because of the rear main seal problem. In your opinion could it be fixed or should we consider his option of selling it?
    Oh and thanks for the heater help, it was the fan motor.
  • hi I have had to replace my rear seal too, to do a good job you have to take off the oil pan as well as removing the transmission.have you complained to the mechanic?If it wasn't fixed right its his responsibility to fix it.What did he get paid for??I thought mine was leaking again after it was fixed, but it was the valve cover gasket,oh and the oil filter adapter,try a seal additive in your engine oil,unless its a big leak it really helps to expand the seals.Jeeps are great but...( they leak )years ago I worked at a few oil change places and jeeps and oil leaks go hand in hand,so my opinion is get the leaks fixed and drive it like a jeep,keep it as a second vehicle.If you love it prove it ha ha. :D
  • hi again another quirk with my cherokee is that if I shut off the ignition with my headlight switch pulled ot still you cannot get them to go out without turning the key back on,yes the buzzer works still but is this a normal thing and if not how do I get it fixed?? :confuse:
  • hi I want to run 31" tires so up it must go,aside from looking cooler and way more ground clearance,I am wondering if the inline 6 has enough get up and go with the bigger tires,also should I drop in a tranny shift kit in to help???also what kind of lift kit do you have and would you recomend it?? :confuse:
  • Where can I find spes or a manual on a 1984 jeep cherokee sport. I am having trouble with the timing chain have changed it twice in two years. This time i have changed it thats niot the hard part. To Time it and get the distribter just right is not. For some reasom it starts but then when i put it into ggear it dies. I listen to this one and that and have gone threw three timing gasket kits and there not that cheap. Can youhelp me i'm rebuilding this thing to run but hope it lasts to give it to my son in the next year or so it is a 2,8 liter if that helps!
    Chris :confuse: :sick: :lemon:
  • They turn off automatically after a min or so after you push in the switch.
  • Depends on your factory, or present gearing. If you have the 3.55's, like mine, I'd bet it will be sluggish. If you have the towing package and 4.11's, you probably won't have to do anything. That is unless you tow with it. Then you might want to consider 4.56's or even 4.88's.

    Do a lot of research on the lift height you will need to clear 31" tires. I've been told 31's are the maximum you can run without trimming the fenders. Also, I'm assuming you will not mount those 31's on the factory rims. They have too much backspacing and will cause the tires to rub in a turn.

    A shift kit couldn't hurt. Mine could use one even with the factory 225's on it and 3.55 gears. I don't have any recommendations on lifts as mine isn't lifted. Yet! :D
  • mark,

    I had a 93 cherokee sport 4wd that had 212,000 on it when I bought it and it ran sweet until I sold it at 245,000. I only had to put on new tires and a new power steering box. It had only routine maintenance done to it. This thing was the poster child for daimler chrysler. I bought a 99 last year and have had nothing but good luck with it. I gave my 93 to my little brother and he never checked the oil for a year. One day I went to change the oil and it was running on 1 qt. This thing was unreal. Good luck with your Jeep man
  • I have a 99 cherokee sport with 4wd. It has 75,000 on it now and the gas mileage just took a turn for the worse, I was getting about 17-18 and now I'm getting like 12-13. I replaced the plugs, rotor, cap and all that but no difference. I dont know what the problem is with it. Also sometimes when I shift into drive it takes a few seconds for the transmission to kick into drive. Also the 4wd light on the dash wont go off. It has been rough to engage in 4wd and sometimes I have to put it in neutral to get it to disengage. I hate all these problems I'm having and so is my wallet. I dont know if I should get the transmission serviced because I've heard lots of horror stories about it. Any help would be appreciated.
  • ladybug5ladybug5 Posts: 1
    I need to know how much antifreeze to put in our daughters 2000 Jeep Cherokee Sport. The information would be much appreciated. We had to change out the top radiator hose and will replace the lower one tonight then we need to flush the thing out and replace the antifreeze. Thanks so much in advance. :)
  • I've had an intermittant problem with my 2000 Jeep Cherokee for the last year or so. Our mechanic has been unable to identify the noise, so I thought that I'd see if someone here had any ideas.
    When I get to about 25 mph. my Jeep begins to make this High pitched buzzing, squealing noise. When I slow down, the noise slows down as well. It sounds as if the noise is coming from something that rotates, or from something that is vibrating slower at slower speeds and faster at faster speeds. The noise is coming from underneath the vehicle and seems to be louder on the passenger side, but it's hard to tell, because it's hard to pinpoint the noise when it only begins at about 25 mph.
    Everything is working well, no problems. I was wondering if the recall for the heat shield that we had a couple of years ago could be the culprit. Perhaps it's come loose and is vibrating. The Jeep is maintained on schedule. Our mechanic checked the odometer cable and says that's fine.
    Any ideas out there? It's really embarassing to drive around making such a noise. Thanks.
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