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Jeep Cherokee Grand Cherokee Noises and Sounds



  • agillagill Posts: 19
    this may seem silly but check your jack and spare tire to see of it isd secure. There also could be something in the cargo area rolling around. Look in the sto under the rear passenger seats, under the front seats. You never know.
  • tuggajbtuggajb Posts: 646
    check lower shock mount bolt as have had mine work lose and give me a clunk on small bumps i tightened up clunk gone
  • Thank you, I did check the spare and jack, they were tight...but great suggestion. I will also check the sto under the passenger seats.
  • I just purchased a 2008 Grand Cherokee Limited with a 4.7L engine. Why 2 fans? One is a mechanical clutch & one electric. Is there a cooling issue?
  • tuggajbtuggajb Posts: 646
    electric is for ac when ac on fan on
  • Ok cool (no pun intended) But why not just an electric one? I thought a belt driven fan robs HP & MPG. If you go to the Flex-A-Lite web site, they state mechanical fans suck.(Again no pun intended.)
  • tuggajbtuggajb Posts: 646
    i have the 4.7 and get 18.5 in town if i dont get my foot in the throttle the mecaniacle fan only works when you need it to has a clutch on it as the engine runs at bout 220 temp has a 20lbs radiator cap on it so boiling point is way high (never remove the presure cap from rad when warm) have 189000 miles on mine with very little problums
  • hello....did you ever find the solution to this problem. I have the exact same issue with my 2001 GC. After all kinds of $$$, I finally took out the front shaft and problem went away. Replaced Ujoint on shaft, reinstalled and still there. Only happens exactly when you describe. The noise is just irritating. My guess is something in the front diff. Hopefully you figured this out. Just to clarify, my GC makes a sound like a card clicking the spokes of a bike wheel just in front of the transfer case (appears that way). The noise disappears when the front driveshaft is out but comes back again when reinstalled. It happens either when coming to stop or going over a bump or dip in the road with no brake applied. Very strange noise. Another post confirmed it was not the transfer case. I am baffled.
  • trek87trek87 Posts: 49
    Any word on the outcome after seeing your mechanic?
  • tuggajbtuggajb Posts: 646
    do you have ujoints or a cvc goint on your drive shalft?
  • I have a ujoint which I replaced. The good news is today the problem was solved. The noise ended up being the transmission shifter cable which was slightly rubbing against the front shaft when in drive. A wire tie later and this issue is gone.
  • It has CV joint that I can see, but I am not sure what a CVC joint is
    Thanks Mark
  • hey, someone on the same page- no, still haven't fixed the problem. Did find a bad C/V boot on the front propshaft, as well as a few other people suggesting a bad propshaft, plan to replace next weekend- will let you know how it works out : confuse:
  • tuggajbtuggajb Posts: 646
    sorry one c to much
  • Sooo... i got my new battery changed & spark plugs had fuel injection system serviced. Today i took my car to the airport, the vibration stars again! Ahhhhh! i have been driving my car just around the blocks & seemed very normal. However, it seems like longer i drive, the vibration occurs. Although my mechanic felt the vibration & he ran some test, he couldn't find any problems. my tires fine.. everything else seems fine. not sure what is the cause???
    Happy Holidays!
  • I am hoping you are willing to help me too! I am losing my mind trying to figure this out on my 2002 Jeep Grand Cherokee Overland. I am not positive if my problem is exactly the same, but it is very similar. I have a grinding noise that sounds like it is coming from the driver side front. It has a low grind that continues anytime the accelerator is engaged. It couldn't be heard by others originally, but now even the passengers can hear the grinding. It isn't loud and annoying, but just unsettling. I have replaced bearings, had the transmission broken down looking for a problem, etc. It also "clunks" when making deep turns and shakes when braking with a sharp decline in speed on a downhill slope, but I am unsure if these are related or just more problems. Any help or insight would be VERY much appreciated!!!
  • trek87trek87 Posts: 49
    the only other thing that comes to mind is the differential bearings or the spindles that mount it to the main crankshaft...but now i'm getting into the realm where i'm b/s'ing
  • trek87trek87 Posts: 49
    if you have AWD it sounds suspiciously like the transfer case. an inspection of the transmission wouldn't have found anything if it is the transfer case. you'd need to provide more details, but the low-level grinding might be the tc bearings or a loose chain.

    as for the turns, you could have a worn axle boot or bad cv joint. if you hear a popping sound when the wheel is hard-over, it's another indication of a bad cv joint or u joint.

    it sounds like you have warped brake rotors.
  • Okay...I did a few "tests" last night on my way home from work. I agree that it probably is not the transmission. When I said the low grinding sound is anytime the accelorator is engaged, this was incorrect. It is anytime the vehicle is in motion. If I am stopped, you do not hear the sound. However, if the Jeep is moving...even while shifted into neutral...the sound continues. Over drive on or off does not make a difference either. I do have AWD, so do you still think it is in the transfer case? To describe the sound a little better, it is a combination between a low grinding and the sound large thread tires make on the road....but I don't have large thread tires and the sound did not change when I put new tires on before winter. Are there any specific questions I could answer to make it easier to diagnose? I really appreciate the help! I would love to get this fixed!! This Jeep has just been one problem after another lately.
  • trek87trek87 Posts: 49
    the sounds you describe are coming from the transfer case, which is further supported by the fact that you hear the murmuring whenever the vehicle is in motion (even with the transmission open). the murmuring noise should be directly tied to vehicle speed if this is the case, in the sense that the sound gets "faster" as you move faster.

    your description sounds virtually identical to what i hear from my 249 TC in my '98 GC. another confirmation would be to move the quadra-trac drive control lever (which is connected directly to the TC) slightly and you may hear the sound become louder or softer while moving. it is also possible the overdrive is contributing at speeds above 40 mph - to test this, disengage the overdrive while coasting and see if it gets a little quieter. the overdrive has a viscous clutch (like the TC) that get's noisy at high mileage.

    a noisy TC is common with jeeps, so it's not necessarily something you need to worry about. mine's been getting steadily louder since about 120K, and i now have about 140K. just keep servicing your differentials/TC every 20K and you should be OK. if your TC starts to fail you'll know it :). i'll hold off replacing mine until i can no longer hold a conversation inside my truck. but if you have $1500 to throw at it, all the power to you.
  • jeeepjeeep Posts: 5
    :confuse: Hi, I have a engine Vibration too. Seems like it started over the summer. Its a 03 4.7v8 LT with 32 thousand miles on it. I have taken it to the dealer 3 times, 1 at a different dealer . Had the 30,000 tune up done also. Had my tiers rotated and it still dose it. It will even has the engine Vibration sitting still with in park and rebbing it to 1500rpm that's were it really like to vibrate at in that area. I can feel it in the steering wheel and pedal. So I have a love & hate thing with my Jeep, I love it when its parked and hate it when I have to drive it. So I don't know what it could be. The dealer just says it normal, the maint guy said it feels like a Jeep. I think it may be the transition ?? Some times that acts up too, when I shift from R to D it will want to die some times??? Any ideas? It dose more weird thing but i will save that for some other time.
    Thanks for any ideas. :confuse: :confuse:
  • I have a 1996 Jeep Grand Cherokee with a new engine in it. Actually the new engine has about 3500 miles on it now. Ever since I replaced it, when I first start it up in the morning and accelerate, I hear a strange gurgling sound coming from beneath the passenger side dash. It sounds like water rushing through a tube or pipe or something?? Did you ever figure this problem out?
  • top off your coolant system, there isn't enough to stay in the heater core, the "gurgling" you hear is coolant filling the core back up as you accelerate, increasing flow pressure in the coolant system- fairly common for a major engine repair that requires the system to be drained. :shades:
  • i have a 2002 overland with 55k. once the vehicle has been driving for about 20 min there is a strange sound coming from behind the dash. it is almost like an air switch is having problems. the noise ceases after a while and starts up again. the noise only occurs while the vehicle is on. Any suggestions?
  • tidestertidester Posts: 10,059
    Try turning off the ventilation fan and see whether that makes a difference.

    tidester, host
    SUVs and Smart Shopper
  • I tried that, thought it might be the blend actuator, took that off still makes the noise. it isnt constant, sounds like an air pump that is trying to activate something and just clicks
  • Hello. I have a tapping noise coming from under the valve cover. It gets faster as the RPMs get up to a certain level, probably about 2500, then it goes away. It started happening right after I had to replace the rear PCV grommet on the valve cover.
  • There is a noise when i drive and its driving me crazy! say this out load and this is what its doing. vrroo vrrooo vrrooo. it is more promident on the highway around 45 mph and up. its in the front end. it stops when i accelerate, and then then i just maintain highway speed it does it. it sounds like noisy high tread tires but thats not the case. i also just had the tires balanced. This is happening in 2wd. again it sounds like its in the front. Im thinking maybe wheel bearings?>?? have no idea where to start. transfer case. differentials, wheel bearings. tranny? on the highway i shift into neutral and it still makes noise. any help is very appreciated, this one has me stuck and very annoyed while driving.
  • I had a somewhat similar problem with my jeep. It started out by making noise like a rattling, and over time it got worse. I took it to the shop and they said they needed to flush and refill all my fluids (transfer case and differentials). But that did NOT fix anything and the sound kept getting worse. The only reason it sounded better during acceleration is because the noise of the engine accelerating dampened the noise of the rattle now turned to metal grinding in the front end. I read these blogs and then I bought a Haynes manual just so I would know what I was looking at. I found that one of the boots on my front drive shaft (transfer case side) was torn all the way around and the grease had all leaked out over time. I simply over-greased the thing and the noise completely went away (100%). Not sure if you have the same problem because it could be a lot of things, but thought I would share. If you notice that the noise increases with speed, you might want to examine your drive shafts...
  • trek87trek87 Posts: 49
    The overdrive inside the transmission is also a possibility. When accelerating, torque is applied to the transmission and it tends to pull things 'tight' (the overdrive has a viscous clutch that can wear out over time). This might explain why it occurs at highway speeds as well. Good luck.
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