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CujoJpN

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Discussion starter · #1 · (Edited)
Hey guys, I have a video of this because I mean it would be the best to determing the issue. It happends when I turn the wheel (loudest when car is still moving 0-10mph) and have the brake depressed a little.

I mean Its hard to explain, but I really need to know what this is before winter strikes! :scream:

http://Home.comcast.net/~mnrsw/Cracking1.wmv

Thanks!
 
hard to tell from the vid, but that does definately sound like it could be one of the following - ball joint, driveshaft, cv joint, control arm bushing, or strut/strut mount. where exactly is the sound coming from? does it sound like it's coming from the wheel itself, more torwards the center of the vehicle, or above or below the wheel assembly? have you checked your front end parts for damage yet? have you inspected your driveshaft and cv joint assembly's boots for obvious signs of deterioration like dry rot or cracking or damage such as tearing? if you need help checking these things out, let us know and I'm sure one of us would explain it in detail how to do all this.
 
forgot to ask - does the sound happen only while the vehicle is moving or does it also happen when turning the wheel while the vehicle is stationary. also, does it only happen when turning in one direction or does it happen when you turn in either direction?
 
Discussion starter · #8 ·
The sound seems to be coming from the brake (really it does) so around the axle region not by the strut tower. So its from the wheel itself! Sorry I was so vauge. I checked the CV joint and it was fine, I will take pictures of the whole assembly tommorow if you guys wish to see. Everything to me seems fine, I had a broken CV boot before on a Mercury and this does not sound like a broken CV boot. As for the sound, it occurs mainly when I turn left, when the wheel is turned from 45 degrees to 0 it will make the creep sound. It is really wierd, and scarey.
 
It *sounds* like a creaking sound from an upper strut mount. When you turn the wheel, the strut & spring and etc. move with it. Above that is a piece that bolts to the car. In between, the pieces slide on each other. Sounds like something in there is worn out. I mentioned it because my last car had a similar noise and that's all it was.

As an idea, lift the front of the car off the ground with a jack or something, and see if the noise is still there. If it is, that's actually great. You can take off the wheel and have someone turn the steering wheel while you take a look. Should be easy to find then. On the other hand, if it happens only with the weight of the car on it (and this is probably the case), then you could still have someone turn the wheel while you take a look. May not need the engine running either.

If you can get more specific about where it's coming from, that would help (LOL... Obviously ;)). Noise is vibration. It will be 2 parts rubbing on each other. It *sounds* to me like something coming through a sheet of metal (like a strut) as opposed to somethign solid (like a brake rotor). That's just an opinion of course

**************

Jeez, just noticed the name / location. If it can wait 2 weeks, I'm sure some people at the MNSC meet (Sat the 24th) can give it a shot ;)
 
ok, since we have determined that it's coming from the axle region, that narrows it down to a few possiblities - still cv joint/driveshaft, ball joint, or control arm bushing. I'm not gonna rule out a tie rod (either inner or outer) at this point, but I highly doubt that's the problem as of this point. I would reccomend a front end check at this point. It's quite easy to do yourself or take it to a shop if you are uncomfortable with it. Here's what to do -

1st off, of course place the vehicle on level ground and jack the front end up. Be sure to secure the vehicle using the e-brake or chalk the rear wheels. It's important to leave the car in neutral for this as well...


Place your hands on the tire at the 9 o'clock and 3 o'clock positions. Pull one hand torwards you and one hand away from you, alternating back and forth between hands. You are checking for looseness here from side to side. If you feel any, then the possibilities are inner or outer tie rod, ball joint, or control arm bushing. If no looseness is felt, place your hands at the 12 o'clock and 6 o'clock position and repeat this test again feeling for looseness. If you get any, possibilities are hub and bearing, ball joint, or control arm bushing. If you feel none either way, then your tie rods (both inner and outer), ball joints, hub and bearing, and control arm bushings are fine. That would narrow it down to either driveshaft/ cv-joint, strut/strut mount. If this is the case, you can eliminate struts if you do the following two things - check for leaks in the strut cylinder at both ends of it's travels (at the seals) and physically try lifting the tire from the bottom (if it's easy to do, the struts are bad... the other way to do this is the good ol bounce test...). A broken strut mount can be difficult to check, but all you do is grab a hold of the strut assembly by the bottom and pull it torwards you. If it moves torwards the top, the mount is probably either not seated correctly or is broken. About the only other way to check a mount is to physically take the strut assembly out of the car....

What to do if you feel looseness during the front end check. It may be helpful to aquire a friend's assistance here....

get up under the car and repeat both tests again (this is where the friend comes in handy... have him shake the tire for you cuz sometimes it's a little difficult to do from under there). Keep an eye open on the side to side test for play in the ball joint, and outer tie rod. For the up and down test, look for play in the hub and bearing and the ball joint (also control arm bushing, but usually you can physically see something's a miss here well before you do the tests again...). If either test doesn't merit anything for you, then the more likely culprit for the play is the inner tie rod. To check it, grab hold of it and pull it back torwards the rack and pinion setup (torwards the center of the car). If the play goes away then, that's your problem child. You can sometimes actually get the inner tie rod to move up and down or is painfull obvious that it's loose when you grab a hold of it as well.

still, in my opinion, I think it's either the cv joint or the driveshaft itself. The boots don't have to be ripped for them to be bad. Turn the wheel to the left where it'll make the noise and spin the tire while keeping your ears open on both of em. I'm pretty sure it's probably one of the two (which you might as well say driveshaft for either cuz most places are gonna replace the whole assembly. not too many places fix and repack cv joints anymore...).
 
Discussion starter · #16 ·
Ok, took a while to get the picture uploaded (video is uo now too). Well after doing the front end check just as JW said. Thank's man you are the best. Well i jacked up the car (only jacked the left side up first) and placed my hands on the tyre to feel for any loosness. Get this, none no lossness around the wheel assembly what so ever.

Then I jacked up the car on both sides now so I could go under it, and checked the strut assembly for any leaking, seeping anything. None, the strut's seemed to be perfectly fine. So I finally checked the CV joints, i noticed something pretty bad. The boot is completly ripped off, so most likley sand got into the CV joint and im sure is pretty ruined.
Here is a shot of what I saw, (used teh cell phone so picture quality is bad)
Image


So that is a bummer I atleast know what the problem is, I think I know... I mean if a cvjoint is ruined doesnt it make a clacking noise when your turning to the certain direction? Now the creeping sound it makes now. :dunno: Anyways, it appears to be a CV joint.
 
That is definitely a picture of a dead joint. Well, a split boot to be more precise.

The fix is to replace the whole thing. Partly because there may be more damage or some dirt in there, but mostly because the cost of a boot from the dealership + the work involved tends to eb the same price as getting a whole new assembly.

A dealer could do it and so can most small shops around town. In the grand scheme of things it's not a difficult item to replace.

At least you found it! (Noticed you missed the meet, LOL)
 
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