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Clicking sound from under vehicle (97 5.0 AWD)

Discussion in 'Under the Hood' started by Mike T, May 27, 2003.

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    1. Mike T

      Mike T New Member

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      I have a 97 5.0 AWD with ~85,000 on the odo. If the windows are down or a door is open I can hear a nasty clicking/ticking metallic noise coming from under the body when the Ex is rolling slowly while idling. It seems to be coming from the area of the transfer case. I suspect (hope) it is a universal joint, but there seems to be no play if I tug on the driveshafts. Any ideas?
       
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    3. SaleenEXP

      SaleenEXP Well-Known Member

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      If you can hear the ticking sound while going slowly or under throttle, it's the famous 5.0 tick, the stock manifolds suck and start slowly leaking causing the sound your hearing. Nobody makes headers for the Explorer any more, and you won't be able to find any FMS headers unfortunatley.

      Time to mod that engine, drop in a new cam, custom headers, and full exhaust......no more tick and a lot more power along with much lighter wallet though;), but you'll love that 5.0 rumble in it's raw form, heh.

      However, that ticking sound never sounded really metallic to me, actually I guess it can sound pretty tinny or metallic depending on how severe your leaking is, our 97' 5.0 Mountaineer started to develop the tick around the mileage your at, the 5.0 Mountaineer my mom has now is at about 40,000 miles and it has no ticking sound.

      Try pulling up next to a wall or pass a building, if you hear that annoying tick echo off the wall, I'm pretty sure it's your manifolds, should get slightly louder with more throttle etc.
       
      Last edited: May 27, 2003
    4. Mike T

      Mike T New Member

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      Nope, it's not the manifolds. I know because they off-course are ticking too :banghead: . But this is a very different noise, from a different area. (Actually the engine could be off and I could still hear this tick if it were rolling).
       
    5. SaleenEXP

      SaleenEXP Well-Known Member

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      Thats what I was wondering, I have no idea what could be ticking after shut off as non of ours have ever did that, and the ticking sound from the manifolds never sounded metallic to me.....could be something more serious to keep ticking after you shut the engine off, weird?

      Somebody else might be able to chime in because I have no clue what could be making that metallic sound after shut off?

      Can you pinpoint where the sound is mainly comming from?
       
    6. Mike T

      Mike T New Member

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      It sounds like it is coming from either the front or rear drive shaft U-joints, or the transfer case (I hope it's not the latter). It makes the sound when the vehicle is rolling. I did a search and found a few old posts referring to this exact sound, but the cause was never identified.

      BTW, whatever it is, other than the sound there seems to be no other problems, it drives fine.
       
      Last edited: May 28, 2003
    7. Mike T

      Mike T New Member

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      The more I think about it the more I think it sounds just like a dissintigrated ball bearing (that crunchy, crackly, clicking noise). I guess it could still be a bad u-joint, but if thats not it, it probably something like a transfer case output shaft bearing (although the output shaft seal is not leaking). Has anyone ever openened their AWD case. Is it readily serviceable? Anyone out there have this same sound?
       
    8. Holty

      Holty Elite Explorer

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      sorry, i don't have any input to help but keep us updated Mike.
       
    9. V8BoatBuilder

      V8BoatBuilder Transplanted Bostonian

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      Check your tires for rocks.

      I'm serious. I have the same exact powertrain, and had a tick that was rather annoying when I was rolling. It turned out to be a rather good sized pebble lodged in the tread. You may need to roll the vehicle to check all around the tires, it's worth a shot.
       
    10. 5.0Dad

      5.0Dad Elite Explorer<br><img src="/forums/images/stars4.

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      I've been hearing a similar sound (like B.B.'s in a hubcap). Really notice it in drive a through but I was thinking it was coming from the breaks like something dragging. Any thoughts on it being out at the corners?
       
    11. V8BoatBuilder

      V8BoatBuilder Transplanted Bostonian

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      Hmm... Well my click is back, and this time there are no rocks in my tires. It's not brakes either, since I just did all four wheels, with everything new except for calipers.

      It sounds like the driver's side, comming from either under my feet (T-case, Trans, U-joint) or the wheels.

      I will keep everyone posted to what I find. In a few weeks I'm installing new t-bar adjusters(the kevlar patch), as well as getting around the my slip yoke.

      I'm also installing a bunch of Baumann parts in my 4r70w. If the t-case does go, well it looks like I have an excuse to finally give myself some 4 low :D
       
    12. Mike T

      Mike T New Member

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      Wheel bearings or CV Joints???

      If it is most noticable when the steering wheel is turned, it's the CV Joints.
       
    13. 5.0Dad

      5.0Dad Elite Explorer<br><img src="/forums/images/stars4.

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      There isn't any thing else to make me think it's wheel bearings, no vibrations and everythings tight, but at 80k it's probably time to repack before the next road trip. The last time I checked, u-joints are tight and the sound doesn't change or happen when turning.
       
    14. Bottomlesspit

      Bottomlesspit Active Member

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      Since this seems to be a popular topic...for ALL kinds of clicking sounds......I thought I'd throw my 2 cents in.
      I had a clicking sound that drove me crazy. It sounded like it was coming from under the hood/front area, but I could not find anything no matter how hard I tried.
      One day it was real windy and my truck was facing into the wind...and I heard the sound!!!
      After searching for awhile I finally found the culprit. Came to find that the black plastic flap that covers over the headlight area on each side likes to vibrate with the wind (the flap you lift up to see behind the headlight). It vibrated just perfectly to sound like a clicking noise...almost metallic! I screwed in a couple of black trim screws into each one and no more noise!!!
      Just thought I'd share. Except for that perfect parking job into the wind...I would still be searching!!!
      Ken
       
    15. tersian

      tersian New Member

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      I've got the same under rig ticking noise. I was wondering what you found out if anything.
       
    16. Derek

      Derek Member

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      can the famous 5.0 ticking noise happen to a 4.0 also? when i put the truck in park and the radio off i hear a fast ticking noise maybe its normal engine noise just really only noticed it yesterday
       
    17. Mike T

      Mike T New Member

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      The noise is still there, and just keeps sounding nastier and nastier. I am 95% sure it is inside the transfer case. The only way to know for 100% sure, is to jack up the truck on four jack-stands, put it in drive with the engine running, and listen to the transfer case housing with a stethescope (keep your body away from the rotating tires :eek: ). I plan on trying that before I order the new Remanufactured case (~$1,000 w/ new Viscous Coupler from what I have found).
       
    18. JMoore

      JMoore New Member

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      Oh Yeah

      I know what you are talking about. To fix my problem I replaced my halfshafts in front, ( because they broke:). And what I found was it was the front driveshaft no joke if you take it out you will see the part that bolts up to your t-case slides in and out. And when your car is moving or at speed it sounds like a tick because the metal clasp taps the reciever to the t-case just enough to tick. I had to buy a new one from ford $265.00 because they are supposed to be nonrebuildable units!!!
      And I have rebuilt the t-case, while I was at it. you may want to check the fluid in the t-case as well.
      Hope this helps.

      Jared::rolleyes:
       
    19. Hokie

      Hokie Hokius Maximus Elite Explorer

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      Dad's 5.0 Mounty just started doing this too.... transfer case seems to be the suspect
       
    20. 5.0 Mountaineer

      5.0 Mountaineer New Member

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      Mike T I have the same exact noise you are talking about. I haven't had a chance to check it out but I think its the u-joints. I dont think its the clamps on the halfshaft because it is a constant noise. Also its definatly not a pebble in the tire because if you roll slowly and pop it into neutral you know longer hear the noise. I also no its not the manifolds. The only two things it could be is the transfer case or the ujoints. Keep me posted if you find out what it is
       
    21. explr1

      explr1 Active Member

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      Could it be the heat shield on the transmisson next to the catalytic converter? Mine was making a ticking noise, especially in gear, low speed and while turning the wheel. I tightened the clamps on the shield and it went away.
       
    22. 97BlackX5.0

      97BlackX5.0 Active Member

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      same noise here on a 97 awd....at first i thought it was the back side of the rotors and then thought it was the wheel bearings... but now i think its the cv joint nearest the transfer case on the front driveshaft..... i think it gets a little loose in their and then when you are going slowly.... enough that it doesnt spin fast enough to keep it centered in the joint that it clicks.... i had a rear driveshaft go on my bronco II that had 2 cv joints... it ran perfectly fine cept at low speeds or when you really gassed it then it would either grind or just spin..... cv joints can be rebuilt if you can find parts for them but mine isnt loose enough or annoying enough to warrant tearing it apart yet.... maybe someday when the tranny goes.... lots of v-8's in this crowd..... how long has your 4r70w lasted..... and how hard is the t-case to rebuild.... i just oredered a atsg manual for my tranny
       
    23. 5.0 Mountaineer

      5.0 Mountaineer New Member

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      I have the same clicking noise from under my truck. A couple of nights ago I pulled the front driveshaft and the noise was gone. The cv joint that bolts up to t-case is binding up a little. Does anyone know if you can get the joint or do you have to buy the whole driveshaft.
       
    24. O2Thief

      O2Thief New Member

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      I just replaced my front driveshaft w/ a new one from ford. Got in the X and drove it and I'm still getting the clicking/clunking (metal on metal) noise. A little history. This has been a progressive noise over the last month and a half. It started off as a slight single clunk only under forward straight roll. I suspected it was the inner part of my drivers CV shaft. It got progressively worse where it will now click/clunk all the way to 60mph w/o even accelerating hard. I could feel slack in the CV part of the driveshaft so today I replaced and still have the noise (as stated above). When I pulled the old driveshaft, it appeared pretty tore up. The CV protion had a descent amoung of play. This is getting really irritating.:mad: I hate throwing money at a vehicle and I thought I had the problem narrowed down. I now believe the Transfer case is the culprit. I am going to remove the new driveshaft tomorrow so I won't tear it up anymore (and until I can afford a new one). Anyone know what's involved in replacing one?
       
    25. kyle94ex

      kyle94ex New Member

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      It never ceases to amaze me. The amount of expertise you guys put forward is really great. my ex does the same thing and reading these threads has given me new hope and ideas. I am so glad I found this site.
      -thank you everyone.
       
    26. tersian

      tersian New Member

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      Okay, I replaced both of my short shafts(they were crunching and popping). Test drive afterward still had the ticking, clicking, crunching noise. Put it up on the lift again and it is coming from the front of the front shaft at the u-joint. I am going to replace the u-joint on Monday and report back. I definately sounds like a dry bearing when you get close to it.
       

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