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Jeep Grand Cherokee Maintenance and Repair



  • cskicski West Springfield, VAPosts: 1,550
    So, I ordered a new ashtray and heated seat module, as it was $35 from eBay motors instead of just the heated seat switch, which costs $75 from the dealer. The drivers side switch was broken. The passenger side was fine..or so I thought.

    Excited, I installed the new module, and sure enough my seat fired rite up.... unfortunately the passenger side did not.

    So, since I have 1 good switch in the old module, I am going to swap switches. Do repairs on the WJ models EVER end? :sick:

    Chris Skalski: Network Engineer 2012 Kia Optima EX

  • Lately whenever it gets below around 50 my evic ( temp, compass tire pressure) completely stops working.... Any ideas?
  • Just got some body work done (replaced rear passenger door). On my drivers side in the lower right hand corner of the rear door there is small flat panel that is barely noticeable, however, the replacement door has no small panel in the corressponding left hand lower corner...

    Is there supposed to be? I have been looking for a 2011 jeep all day and cant find it...murphy's law...
  • I have a 1993 Jeep Grand Cherokee and I connected the battery cables backwards so now I have the same problem you do.. I removed fuse 5 but nothing will work...
  • First of all I connected the battery backwards. When the spark occurred I immediately disconnected the cables. Now when I take the key out of the ignition a clicking noise comes from the glove box. The clicking stops when I close the door. I removed #5 fuse but now the door locks don't work, nor do the inside lights...Any idea what I need to do. Any help will be greatly appreciated.
  • cskicski West Springfield, VAPosts: 1,550
    I think you blew the Body Control Unit..which is a companion computer with the ECU (Engine). It controls all the electrical system (all the little things that no one thinks about) inside the cabin. Buy one online for $150.00 to $200.00, already formatted and programmed.

    The body computer is in the glove box along with a bunch of relays. It may just be the breaker IN FRONT of the body computer...which would blow to protect the body computer, but 99% of techs will replace the BCU.
    I do not have a service manual on me but this is a pretty good guess.

    Chris Skalski: Network Engineer 2012 Kia Optima EX

  • chrysler says noise in pump is normal and put up with it seems it's a case of head in the sand.. Has anyone else reported this problem; pump is used in 2011- 2012 v-6 applications. I was told to buy the v-8 if I didn't want the noise.
  • We have a 93 Jeep Grand C. and the auto lights work as far as the sensor goes but the only lights that come on are the running lights. The headlights do not come on. They do if you manually move the switch to the manual position so my thought is that the relay is probable defective but am not sure which relay to replace. Was hoping someone also knows if there is another relay exactly the same that could be swapped in a test.
  • It sounds like your anti-theft system is disabling the car, thinking it has been stolen. i am no mechanic but this used to happen to me every time I let a battery die and it needed jumped in my 95 grand. As soon as you have juice flowing, use your remote, or the key in the door is better, to "unlock" it thus turning off the anti-theft, then continue to jump and start it. that should do it. Your car thinks it is being stolen.
  • mat11mat11 Posts: 1
    i have a 95 grand cherokee and whenever i disconect the battery and i hook it back up the alarm gets set off dont ask me why im no mechanic it just does and for my model/year i have to turn the lock in the back of the suv twice to rest the alarm.. hope it helps
  • Hi everyone!! I have a 2006 cherokee and lately everytime i starts it, it makes a clicking sound for about 2-3 seconds and you dont hear the noise anymore. But when i check my oil knowing that i just had it service that same week its half past where it should be, but its not leaking on the ground. I had someone check it they're saying that its the crank shaft seal in the rear that needs to be change, but another mechanic is saying otherwise. Can someone help me please, because to have the crank shaft seal remove and replace its gonna cost me $1300.00 which is very exspensive
  • If you do not have a visible leak under the car, its not the rear crankcase main seal. Suggest you place a large piece of butcher paper under the car when you park at night and see if there are any oil spots the next morning, no oil, no leak. If you have a V8, those take 6 quarts of oil, not 5. Some oil change places only put in 5 because most do not know about the extra quart. I have a 2004 Grand Cherokee and have had low oil after an oil change, just added a quart and good to go. Top off the oil to the fill mark on LEVEL ground and check it after 500 miles. It should be close to full and above the add mark. As far as the clicking sound, that is a valve lifter. If it quits after a few seconds, there is no problem with it, its very common in many cars besides Jeep.
  • Hi mikey, thanks for the idea, i will put a large piece of paper under there to see if its really leakin. My engine size is actualy a V6. I will call the dealer to see if they have that vavle lifter your talkin about.
  • It's your blend door. Common failure on this vintage of jeep. Search YouTube for video on how to easily diag while sitting in your driveway.

    Good luck. There are repair kits that you can get for about $120 that allow you to do repair for less than dealer charges.
  • My jeep has been running very rough and dying randomly unless I give it gas constantly. I recently replaced the battery terminal connectors and spark plugs and I tested the battery and alternator with a multimeter several times (all OK). Here is a video I took with my cell phone:

    Thank you guys for any information that helps me to get it running good again. :sick:
  • I just purchased a 1998 Jeep Grand Cherokee limited 5.9 { what a power house} I have a front differential rorar that only showes up during de acceleration. When the vehicle is below 20 mph the roar seems to pulsate as if it keeps up with wheel rotation. With the vehicle on Jack stands the roar seems louder on right side I placed my stethscope on back side of right side front wheel bearing and seemed ok. checked pinion bearing area ok. listened to right side carriage bearing area noise sound louder. Here is the puzzle If it is a carriage bearing why do I hear a pulsating roar when below 20mph? I tried manually moving wheels to see if there was free play, none. Please Help!!!!
  • Did you check the brake rotors and calipers? Could be a warped rotor or hung caliper pulsating against a warper rotor. Does it pulsate when you brake?
  • I am the owner of a 1994 Jeep Grand Cherokee Lerado, and I have been having all sorts of problems with it. Electrical systems in my car have started to fail, one after another. It started with the radio and the interior lights, and has spread to the power locks and the car will no longer start. Also, the door makes a loud repeated clicking noise when it is opened, and when the door is opened all other electrical systems in the car shut off. My car is in desperate need of help. I have checked the fuses and they are not causing any of the problems.

    If anyone has any suggestions I would really appreciate it.
  • loosenutloosenut Posts: 165
    battery cables? i replaced th ends on mine,but soldered the ends..corrosion was in the ends,but the torch burnt most of the green powder out,(oxidised copper),solder sealed it... so i guess i'm saying to check your battery cables and connections--especially both ground wires...then check all your ground straps-sounds like a body ground-or bad cable..if you see green powder in th battery cables,time to replace them :sick:
  • i think your problem is in the harness between the door and the pillar, pull open the corrigated rubber boot and you are going to find one or more broken wires.. the easiest way to repair is to splice in an additional length of wire between the broken pieces..
  • I have recently purchased an '05 Jeep Grand Cherokee Limited 5.7L Hemi and the tire pressure light has started to blink on my dash, it is the winter time now so I have set my pressure to 35 in all tires, but the light is still showing. Sometimes it will blink in a sequence of 20 flashes while I am driving 20-25MPH, and then it will again blink in a sequence of 20 flashes when I am driving at about 60-65MPH. I have had multiple people check out this problem and no one has an answer other than a faulty sensor, I replaced the sensor and the problem is still occurring, could this be a recall? or just an electrical problem with my vehicle? Or I found a small dent in the backside of my rim, could this be causing the problem?
  • tuggajbtuggajb Posts: 646
    did you check the spare?
  • Yes I have checked the spare it is a fully functional spare with rim included, unfortunately when I swapped it out for the wheel with the bent rim the tire pressure light still flashes in the same sequences. I even got my dash lights reset and days later it came back.
  • cskicski West Springfield, VAPosts: 1,550
    I had a van do the same thing. I ended up pulling the fuse and drove it in blissful ignorance for 4 more years. It never lost even a pound of air in any tire. You can thank the US Government for forcing the car industry to put them in all US spec cars and light trucks.


    Chris Skalski: Network Engineer 2012 Kia Optima EX

  • steverstever Posts: 52,683
    edited December 2011
    You must of had solid rubber wheels if you never put air in the tires for four years. :shades: Tires normally lose 1 psi per month. (link)

    A couple of years ago the TPMS light went on in a rental van I was driving. Sure enough, one of the tires was low, but it had enough air that I was able to limp to a gas station a mile away and top it up enough to get it to a tire shop. Lots easier than changing a flat.

    Then last summer, I was driving 40 miles of gravel in a construction area trying to make a ferry when I destroyed my tire. My older van doesn't have a TPMS. Just figured it was a rough road and kept driving on a low tire. That cost me $160 bucks to replace the tire in the boonies, not to mention having to do this. And I missed the ferry.
  • I just purchased this for $500, it has very high mileage. The problem is that We cannot get the back tailgate to open. The bigger problem is the person we bought the jeep from let his 17 year old son try to fix the lock on the front driver side door lock. He bent the metal all up and complete destroyed the interior panel. I'm assuming I need to get a new door?? My first thought was to go to area junkyards to look for one. Does anyone else have any ideas??
  • cskicski West Springfield, VAPosts: 1,550
    Your best bet is to find a local junkyard with complete interior panel. If the door is other wise ok then just do that.

    The size and weight of those items makes it difficult to ship them to you for a reasonable price.

    Here in the DC area there is a large chain of junkyards called Brandywine Auto Parts/salvage.

    Please be aware that junkyards are increasingly becoming a thing of the past. They take a lot of land, and recycling the metal makes big profits for salvage companies.-Chris

    Chris Skalski: Network Engineer 2012 Kia Optima EX

  • cskicski West Springfield, VAPosts: 1,550
    Do you have a check engine light that is intermittent? Does it want to stall as you come to a stop?

    It has been my experience that rough idle AND having to gas it to keep it running is a bad Oxygen sensor.

    My 99 has 4 of them. It cost $1000 to change them all out after having similar problems.
    Your G/C has different V8 engines than mine though. FYI.

    Chris Skalski: Network Engineer 2012 Kia Optima EX


  • cskicski West Springfield, VAPosts: 1,550
    I bet the passenger side taillight is out too. The problem with the 99-04 models is water leaking in from the roof and drippi g down behind the pass taillight then into the rear interior. If u lopk at other similar jeeps on the road u will notice the pass tail lite out a lot. Dont change the bulb...its not have to unscrew it and clean the contacts with a wire brush. For the leak, make sure all the gaskets in tue hatch area are secured. They slide off of the car due to dereriorating glue that holds the rubber to the metal. -Chris

    Chris Skalski: Network Engineer 2012 Kia Optima EX

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