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#1 Old 06-09-2012, 10:17 PM
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iancampbell06
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Front End Noises

Hi All,

I have a 2006 Terracan with 122,000km on the clock and it has developed a disconcerting clonking noise from the front end. Seems to come and go and is not related to steering wheel position but is definitely a metal to metal sound. Have had the diffs checked (in case of dreaded Terracan LSD problems) but no they are fine, as is transfer case. Could be a CV joint and will have them checked next....any ideas???

Thanks,

Ian C
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#2 Old 06-09-2012, 10:35 PM
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Check the sway bar links. We've had a few complaints here about those going bad and clunking.

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#3 Old 06-09-2012, 10:53 PM
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iancampbell06
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Thank you - I'll get them and the whole front suspension checked.

Ian C
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#4 Old 06-10-2012, 12:33 PM
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The Terracan's front suspension is quite durable and reliable, but known for having some "loose nuts" during time. Nobody has came up with a good explanation why some nuts will loosen by themselves with time.

Some shops have recommended to completely remove the nuts and apply some thread locker and install again.

In the Terra's front suspension, there are four (two on each side) especially prone to become loose nuts, that hold the upper A arms in place to the suspension fulcrum. In the attached drawing, I have circled both nuts.

When loose, they produce a very characteristic metallic noise, every time to "first brake" in forward or backwards motion. To confirm this, just do a series of forward and reverse moves and press the brakes slightly. If this nuts are loose, you will hear a clunk metallic noise every time to press the brakes "for the first time" in each direction. No need to go fast, just a slow forward and reverse move will do.

Check those nuts. While in there, have your mechanic check every single nut or bolt related to the suspension. It wouldn't be a surprise if he finds some others loose.

Check also the stabilizer bar rubber bushings and the stabilizer bar ball joint links. At such mileage, they may be worn out.
Attached Images
File Type: jpg TERRACAN UPPER A ARM.jpg (96.4 KB, 86 views)

Robert B.

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#5 Old 06-10-2012, 07:16 PM
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Pocholo
This will also manifest while doing full lock left and right while reversing and going forward. Bushings should be replaced if tightening the nuts won't work.
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#6 Old 06-10-2012, 09:47 PM
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iancampbell06
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Thanks Guys - I'll check all of the above and have the mechanics go over them as well.
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#7 Old 06-11-2012, 06:34 AM
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I would check all front end suspension component. Could be control arm bushings
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#8 Old 06-14-2012, 05:08 AM
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iancampbell06
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Hi,
Well the Hyundai "Experts" in Albany, WA tell me it's the front wheel bearings and they are now replacing them. However, I'm not convinced as the vehicle has only done 120,000km easy kilometers on (mainly bitumen) city and country roads. Also, why would both wheels go at the same time??? The car is out-of-warranty timewise but less than the 130,000km distance limit.
I hope the clunking noise disappears but if not, I hope the "Experts" are prepared to wear the cost of throwing out perfectly good bearings!!! Cheers, Ian C
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#9 Old 06-14-2012, 09:39 AM
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Quote:
Originally Posted by iancampbell06 View Post
Hi,
Well the Hyundai "Experts" in Albany, WA tell me it's the front wheel bearings and they are now replacing them. However, I'm not convinced as the vehicle has only done 120,000km easy kilometers on (mainly bitumen) city and country roads. Also, why would both wheels go at the same time??? The car is out-of-warranty timewise but less than the 130,000km distance limit.
I hope the clunking noise disappears but if not, I hope the "Experts" are prepared to wear the cost of throwing out perfectly good bearings!!! Cheers, Ian C

I have to differ from their opinion. When bearings are worn and need changing, they will produce a humming noise. This "hum" will change pitch when doing zig-zag manouvers, but no clunking metallic noices.

Clunking noises always mean there is something loose or broken. Knowing the Terracan's suspension real good, my money is on some suspension parts loose (nothing broken) or worn out bushings, but no bearing problems.

Pls let us know your findings and outcome.

Robert B.

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#10 Old 06-15-2012, 05:21 AM
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iancampbell06
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Will do. Still waiting for parts though. I would have thought that wheel bearing were as common as cars and that any aftermarket ones would do - SKF, Repco, etc. Seems not though!!
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