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Jesse Lessard (Jlessard)
Member
Username: Jlessard

Post Number: 96
Registered: 10-2002
Posted on Tuesday, February 17, 2004 - 08:22 pm:   Edit Post Delete Post Print Post

OK, to find out the cause of my terrible grinding noise when braking(front left side wheel). I have just gotten to my cv joint.

The bearings felt ok, couldnt feal any play in them befor i took the wheel off.
Now have the CV joint out, and I'm not too sure how to check it.
for the amount of horrible grinding noise I was hearing nouthing looks that scared up. help on how to check the CV? somthing with a pry bar?
I can feal a little bit of play by pulling it appart. not realy messuerable, but fealable.

Thanks.
 

Curtis N (Curtis)
Dweb Lounge Member
Username: Curtis

Post Number: 1132
Registered: 05-2002
Posted on Tuesday, February 17, 2004 - 09:14 pm:   Edit Post Delete Post Print Post

The noise is probably not your CV. Especially if the noise only occurs while braking. How do your pads and rotor look?
 

Jesse Lessard (Jlessard)
Member
Username: Jlessard

Post Number: 97
Registered: 10-2002
Posted on Tuesday, February 17, 2004 - 10:00 pm:   Edit Post Delete Post Print Post

roters are on the thin side.
pads look pretty decent.

more detial on the grinding.
At speed its a horrible grinding, but when comming to a stop(low speed) it compleatly grips the wheel skidding, or lurching to a stop.
It happens only when useing brakes, front left wheel.

96D1 btw..
 

Jesse Lessard (Jlessard)
Member
Username: Jlessard

Post Number: 98
Registered: 10-2002
Posted on Tuesday, February 17, 2004 - 10:12 pm:   Edit Post Delete Post Print Post

I'm puzzled now cuase evry thing i took out dosnt look scared or worn, like I would expect it to be from the noises I was hearing.

Too add to my post, when it comes lurching to a stop.
The tire actually sticks and dosnt want to move forward again, like its caught. I have to give it some gass and it make a lound 'bang' to get moveing again.
 

Will Tillery (Will)
Senior Member
Username: Will

Post Number: 327
Registered: 11-2002
Posted on Tuesday, February 17, 2004 - 10:52 pm:   Edit Post Delete Post Print Post

Are your calipers sticking?
 

Curtis N (Curtis)
Dweb Lounge Member
Username: Curtis

Post Number: 1134
Registered: 05-2002
Posted on Tuesday, February 17, 2004 - 11:57 pm:   Edit Post Delete Post Print Post

"roters are on the thin side."

By what measure? Is that thin by appearance or thin by micrometer as compared to spec?

I suggest that you check your rotors and pads according to spec. If either or both is too thin then replace. My best guess is that the rotors are toast. Likely much more so than you realize.

I have this vision of a pic I saw a while back: this poor guy's disc had seperated completely from the hub section of the rotor. This would cause symptoms like you are experiencing.
 

Jesse Lessard (Jlessard)
Member
Username: Jlessard

Post Number: 99
Registered: 10-2002
Posted on Wednesday, February 18, 2004 - 12:05 am:   Edit Post Delete Post Print Post

they are thin just by look, and I dont know that it has ever been replaced.
I'll try and find somthing to mesure it with in the morning.
 

Wicks (Wicks)
Member
Username: Wicks

Post Number: 139
Registered: 03-2003
Posted on Wednesday, February 18, 2004 - 02:48 am:   Edit Post Delete Post Print Post

You could have blown inner bearing. Inner and outer sets, check em all out.
 

Michael Noe (Noee)
Senior Member
Username: Noee

Post Number: 870
Registered: 03-2002
Posted on Wednesday, February 18, 2004 - 06:35 am:   Edit Post Delete Post Print Post

What about the diff? Check the fluid, could it be hosed?
 

Jesse Lessard (Jlessard)
Member
Username: Jlessard

Post Number: 100
Registered: 10-2002
Posted on Wednesday, February 18, 2004 - 11:46 am:   Edit Post Delete Post Print Post

Best I can tell the rotors are at about 1.25cm, I don’t have the best measuring tool though.

To see if it is brakes or driveline, could I leave out the CV/halfshaft and put the wheel back on. Then drive around the block and see if the problem is still there?
And would I need to take the front drive shaft out too? Or is that a not a good idea...

For all I know it could be the calipers, but I dont know a way to check if thats the problem.

Any suggestions are appreciated.

 

Curtis N (Curtis)
Dweb Lounge Member
Username: Curtis

Post Number: 1139
Registered: 05-2002
Posted on Wednesday, February 18, 2004 - 01:47 pm:   Edit Post Delete Post Print Post

OK - I am stumped. Lets back up a little bit. Have you made sure your CDL is not engaged? If the pads and rotors look OK then you could have a sticking caliper. However, I have never heard a sticking caliper release with a *bang*. Sounds like that are usually drivetrain related, but you say this only occurs when braking.

First make sure your CDL is not engaged. Then check the calipers by lifting the wheel, start the truck, apply the brake, let off, and see if the wheel will budge. If you get any movement at all then it is probably not the caliper, but you may want to repeat the process to be sure. If you can move the wheel try lifting both front wheels, put CDL and transmission in neutral, and spin the wheel in question while watching the other. Let us know what happens.

It is really hard to tell without being there. There are also a lot of details that are missing. For instance, does this occur when the brakes are hot, cold, or all of the time? Do you have any drivetrain mods? What do you know about the history if the rig?
 

Jesse Lessard (Jlessard)
Member
Username: Jlessard

Post Number: 101
Registered: 10-2002
Posted on Wednesday, February 18, 2004 - 02:46 pm:   Edit Post Delete Post Print Post

Thanks Curtis, I'll try your suggestions as soon as I get home from work. Had to bum a ride today :-(

For mods, I have OME HD springs and extended brake lines. Replaced the rear drivshaft a while back to fix the rotoflex, other then that its stock.
It occurs all the time, hot or cold, although I’ve not gotten it too hot since the problem got real bad.

For history, I got the truck over a year ago; same time as my registered date for Dweb. Before that it had an extended warranty on it, as far as I know it was well maintained. 2 previous owners, engine got its valves fixed with new ones.

2 Months ago, I replaced the swivel ball seals and wheel bearings, when I took out the CV last night I had forgotten that It was all full of gear Oil and made a mess. :-)
But it was nicely lubricated, as apposed to before I did the seal.

I'll let you know what happens when I get home.

*EDIT*
One more thing that probly dosnt matter,
I put on a new stearing stablizer, had the tiers re-mounted(put equal in em), and a new K&N air filter on the day it started to happen..
 

Blue (Blue)
Dweb Lounge Member
Username: Blue

Post Number: 1263
Registered: 04-2003
Posted on Wednesday, February 18, 2004 - 03:03 pm:   Edit Post Delete Post Print Post

2 Months ago, I replaced the swivel ball seals and wheel bearings

check those inner bearings like Wicks suggested

Once I went offroading with a guy who had an old Willy's. His Jeep was being towed to the trailhead behind another truck, and all of a sudden smoke starts pouring out from his rear wheels. He had just replaced his bearings and just got a few parts backwards, too tight, etc...
 

Rob Davison (Nosivad_bor)
Dweb Lounge Member
Username: Nosivad_bor

Post Number: 1638
Registered: 02-2003
Posted on Wednesday, February 18, 2004 - 03:12 pm:   Edit Post Delete Post Print Post

Man, it sounds like you are out of brake pad!!

there is no squeeler warning, check it out !!

Rob
 

Kyle Van Tassel (Kyle)
Moderator
Username: Kyle

Post Number: 764
Registered: 11-2002
Posted on Wednesday, February 18, 2004 - 03:12 pm:   Edit Post Delete Post Print Post

Its either the bearings or the Spider gears. Pull the fill plug out of the front diff and look in there with a flash light. You might have to turn the driveshaft a little to see through the open part of the diff...
"Blow me"
 

Blue (Blue)
Dweb Lounge Member
Username: Blue

Post Number: 1267
Registered: 04-2003
Posted on Wednesday, February 18, 2004 - 03:14 pm:   Edit Post Delete Post Print Post

does the rotor surface look like a fucked up vinyl record or a nice shiny dinner plate?
 

Bill Bettridge (Billb)
Dweb Lounge Member
Username: Billb

Post Number: 1494
Registered: 02-2002
Posted on Wednesday, February 18, 2004 - 03:15 pm:   Edit Post Delete Post Print Post

Gotta be wheel bearings and/or sticking caliper piston. If the wheel locks up and doesn't want to turn again I'd think that would be the only thing that could cause it - assuming CV and diff are OK. Especially if you hear it coming from the left front.

What do the races and bearings look like?
Also - do the pistons go back into their bores easily when you slacken the bleed valve on the caliper and press them back in?


Bill
 

Blue (Blue)
Dweb Lounge Member
Username: Blue

Post Number: 1268
Registered: 04-2003
Posted on Wednesday, February 18, 2004 - 03:18 pm:   Edit Post Delete Post Print Post

you thinking pitted pistons, Bill?
 

Kyle Van Tassel (Kyle)
Moderator
Username: Kyle

Post Number: 766
Registered: 11-2002
Posted on Wednesday, February 18, 2004 - 03:23 pm:   Edit Post Delete Post Print Post

Damn people , its a diff........ Might even be the rear.... Pull both fill plugs and have a look with a flashlight..Check both drive shafts for bad joints as well
"Blow me"
 

Curtis N (Curtis)
Dweb Lounge Member
Username: Curtis

Post Number: 1145
Registered: 05-2002
Posted on Wednesday, February 18, 2004 - 03:28 pm:   Edit Post Delete Post Print Post

The diff is where I was leaning. Also why I figured it best to make sure that the CDL is not engaged.
 

Jesse Lessard (Jlessard)
Member
Username: Jlessard

Post Number: 102
Registered: 10-2002
Posted on Wednesday, February 18, 2004 - 05:47 pm:   Edit Post Delete Post Print Post

Holy crap, i found the problem, it was on the outher side.
While checking inside the diff like Kyle suggested I was looking at the passenger side and noticed it didnt look right...

Its wierd cause I had friends listening to the noise too, and it sounding and fealt like it was comming from the drivers side.

Any ways i'll post some pics ina few so you all can see the mess.
 

Jesse Lessard (Jlessard)
Member
Username: Jlessard

Post Number: 103
Registered: 10-2002
Posted on Wednesday, February 18, 2004 - 06:29 pm:   Edit Post Delete Post Print Post

I appoligize for bothering you all with trying to figure out the problem when it wasn't being described right. I jusnt didnt look in the right place...

Here was the problem.


"hmmm there's not supposed to be a caliper there?"
 

Curtis N (Curtis)
Dweb Lounge Member
Username: Curtis

Post Number: 1148
Registered: 05-2002
Posted on Wednesday, February 18, 2004 - 06:35 pm:   Edit Post Delete Post Print Post

Wow. Glad you found the problem. Could you take the wheel off and post another pic? I gotta see this :-)
 

Jesse Lessard (Jlessard)
Member
Username: Jlessard

Post Number: 104
Registered: 10-2002
Posted on Wednesday, February 18, 2004 - 06:39 pm:   Edit Post Delete Post Print Post

The grinding noise was the caliper scraping the wheel. When braking it must have been pushing itself out.



I must have not tightened one of the bolts for the caliper on enough. Cause one was missing and the the outher still in its place with part of the caliper....

 

Jesse Lessard (Jlessard)
Member
Username: Jlessard

Post Number: 105
Registered: 10-2002
Posted on Wednesday, February 18, 2004 - 06:43 pm:   Edit Post Delete Post Print Post

one more for fun...
 

Jesse Lessard (Jlessard)
Member
Username: Jlessard

Post Number: 106
Registered: 10-2002
Posted on Wednesday, February 18, 2004 - 06:48 pm:   Edit Post Delete Post Print Post

I was kinda hopeing it was the diff so I could get a locker.....

But this isn't too expencive, just a new caliper and a new metal guard thing. I'll make sure nouthign else is bent of corse.





Thanks again for the help. :-)
 

Rob Davison (Nosivad_bor)
Dweb Lounge Member
Username: Nosivad_bor

Post Number: 1639
Registered: 02-2003
Posted on Wednesday, February 18, 2004 - 07:59 pm:   Edit Post Delete Post Print Post

hehehe, i was closest!
 

Kyle Van Tassel (Kyle)
Moderator
Username: Kyle

Post Number: 770
Registered: 11-2002
Posted on Wednesday, February 18, 2004 - 07:59 pm:   Edit Post Delete Post Print Post

Dude , how in the hell did you not see THAT right off the bat ? lol
"Blow me"
 

marc olivares (Pugs)
Senior Member
Username: Pugs

Post Number: 357
Registered: 12-2002
Posted on Wednesday, February 18, 2004 - 08:17 pm:   Edit Post Delete Post Print Post

i have to agree with klye. maybe i'm just a lazy mechanic, but a quick glance over the entire vehicle would have saved you a pile of time.
good luck
m
 

Jesse Lessard (Jlessard)
Member
Username: Jlessard

Post Number: 107
Registered: 10-2002
Posted on Wednesday, February 18, 2004 - 09:41 pm:   Edit Post Delete Post Print Post

Well I was working at night with bad light....
heh, it is pretty bad though.
 

Kyle Van Tassel (Kyle)
Moderator
Username: Kyle

Post Number: 778
Registered: 11-2002
Posted on Wednesday, February 18, 2004 - 09:43 pm:   Edit Post Delete Post Print Post

Man there aint that much dark to be had anywhere...lol
"Blow me"
 

Jaime Crusellas (Jaime)
Senior Member
Username: Jaime

Post Number: 253
Registered: 05-2003
Posted on Thursday, February 19, 2004 - 11:58 am:   Edit Post Delete Post Print Post

Jesse,

Make sure you use the blue loctite or permatex on the new caliper bolts. It will keep them from loosening up.

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