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Joon Park (Jjoonpark)
New Member
Username: Jjoonpark

Post Number: 3
Registered: 05-2003
Posted on Monday, May 12, 2003 - 04:22 am:   Edit Post Delete Post Print Post

2000 Disco I have swings sideways quite hard, especailly when I change the lane..thought it was because of bumpy road but it seemed like it was just me doing it on the road last night. What should I do?
 

Rick Clarke (Tugcap)
New Member
Username: Tugcap

Post Number: 20
Registered: 02-2002
Posted on Monday, May 12, 2003 - 07:20 am:   Edit Post Delete Post Print Post

Really need more information as to exactly swings sideway means. How many miles on car? How much tread is left on your tires? Shocks? Are you gently changing lanes, or pulling the wheel like a Porsche? Mine swings like a drunken sailor if I pull the wheel hard. My factory shocks/tires were toast after 2yr, 35k miles. This is a good group of helpers here, but they arent psychic, so give details and you might get some good feedback.
Rick
 

dareDVL (Daredvl)
New Member
Username: Daredvl

Post Number: 29
Registered: 03-2003
Posted on Monday, May 12, 2003 - 09:46 am:   Edit Post Delete Post Print Post

I have probably a similar issue.
The vehicle has a tendancy to wander, like if you hit a rut in the road it wants to pull one way, then you hit another and it pulls the other way.
My shocks are also toast, so start there.
I've also been told (by a Chrysler dealer) that I need a new draglink. Of course the draglink looks fine, my guess is that the tie rod ends on the draglink should be replaced.
I'm also thinking steering play should be adjusted.
Haven't got to it yet.
Its a little frigtening at 60mph.
 

Bill Howell (Billh13)
New Member
Username: Billh13

Post Number: 40
Registered: 03-2003
Posted on Monday, May 12, 2003 - 10:06 am:   Edit Post Delete Post Print Post

Sway bar mounts?
 

Roland Kutasi (Disco1)
Member
Username: Disco1

Post Number: 139
Registered: 10-2002
Posted on Monday, May 12, 2003 - 07:12 pm:   Edit Post Delete Post Print Post

Could be the factory shocks are cactus.
 

Eric Pena (Evalp)
Senior Member
Username: Evalp

Post Number: 508
Registered: 06-2002
Posted on Monday, May 12, 2003 - 07:23 pm:   Edit Post Delete Post Print Post

I would start with replacing the shocks and springs with OME, then go from there. My 2000 Disco's shocks and springs were door stops when I replaced them in Aug of last year.

Also look at your sway bars and see if they are mounted OK and look right.
 

Rover Puppy (Rover_puppy)
New Member
Username: Rover_puppy

Post Number: 4
Registered: 05-2003
Posted on Tuesday, May 13, 2003 - 09:57 am:   Edit Post Delete Post Print Post

I have the same problem with my 2002. It is the only complaint I have about my D2. I second the frightening at 60mph+.
 

Brian Dickens (Bri)
Senior Member
Username: Bri

Post Number: 361
Registered: 08-2002
Posted on Tuesday, May 13, 2003 - 07:17 pm:   Edit Post Delete Post Print Post

Count me too. The way that I describe it is that when you make a small adjustment, it stays going that way, then you adjust the other way and the first time you experience this you can get into an oscillation that can get scarey. I have seen other threads on loss of self centering, maybe that is it.

Anyone have any ideas on this one?
 

Alex Cabrera (Alexcabrera)
Member
Username: Alexcabrera

Post Number: 113
Registered: 12-2002
Posted on Tuesday, May 13, 2003 - 07:17 pm:   Edit Post Delete Post Print Post

Tie rods and bushings... check them out. If you can move the steering links by hand, then that might be a start. Mine did the same thing until I got new rods. They were wore out. As I would switch lanes the tires would move as u described.

You can also have someone turn the steering wheel and see how the steering links move.
 

Brian Dickens (Bri)
Senior Member
Username: Bri

Post Number: 364
Registered: 08-2002
Posted on Wednesday, May 14, 2003 - 12:14 am:   Edit Post Delete Post Print Post

Brand new tie rod, drag link and ball joints. What bushings are you talking about?
 

Brian Friend (Brianfriend)
Senior Member
Username: Brianfriend

Post Number: 842
Registered: 09-2002
Posted on Wednesday, May 14, 2003 - 12:26 am:   Edit Post Delete Post Print Post

Anyone look at tire width? Especially on the D2. If it is a grooved road (heavily traveled) wide tires will make the truck wander one way then the other. Could be that simple. Could be steering box. Could be loose trailing arms. Loose trailing arms will really scare you.
 

Brian Dickens (Bri)
Senior Member
Username: Bri

Post Number: 366
Registered: 08-2002
Posted on Wednesday, May 14, 2003 - 11:14 am:   Edit Post Delete Post Print Post

It really is not a road thing and my tires are not wide (happens on trxus 235/85 and BFGAT 245/75). Really seems like loss of self centering to me. Will double chekc the trailing arms, but I am pretty sure that they are tight. One of the bushings is cracked on the bottom of the trailing arm, so it might be subject.

In my case it has nothing to do with a bump, groove or anything in the road. You can get this wobble or oscillation when making any minor adjustment. I have adapted to it well, so I no longer notice it that much. However someone with little or no experience driving the rig will o-ver compensate. You correct to the left, it stays left, then you correc to the right more since it "stayed left" the result is pilot oscillations.... a bad thing.

This seems to be very commoon. Before I start replacing every bushing, shock and engine mount it sure would be nice to determine exactly what it is.
 

Brian Dickens (Bri)
Senior Member
Username: Bri

Post Number: 367
Registered: 08-2002
Posted on Wednesday, May 14, 2003 - 11:15 am:   Edit Post Delete Post Print Post

Also, this did not happen when I first removed the sway bars, so I do not think that it is lack of sway bars.
 

Brian Friend (Brianfriend)
Senior Member
Username: Brianfriend

Post Number: 844
Registered: 09-2002
Posted on Wednesday, May 14, 2003 - 11:39 am:   Edit Post Delete Post Print Post

Brian....maybe check your toe. If you are too toed out it might do that, especcially around corners and in the snow.
 

Brian Dickens (Bri)
Senior Member
Username: Bri

Post Number: 370
Registered: 08-2002
Posted on Wednesday, May 14, 2003 - 11:49 am:   Edit Post Delete Post Print Post

Man, I have played with my toes a lot. Toe out at 1mm and toe even (which I believe that I am running now). Niether had much effect, but tow out made it worse.

Will triple check though.

Anyone know a safe way for an intermediate mechanic to adjust the steering box? Could that be it? What about bleeding the steering? How often should that be done?
 

Kirk Thibault (Kirkt)
Member
Username: Kirkt

Post Number: 72
Registered: 11-2002
Posted on Wednesday, May 14, 2003 - 03:52 pm:   Edit Post Delete Post Print Post

If you've lifted the rig and lost caster, won't that decrease the self-centering tendency of the steering system?
 

dareDVL (Daredvl)
New Member
Username: Daredvl

Post Number: 31
Registered: 03-2003
Posted on Wednesday, May 14, 2003 - 05:00 pm:   Edit Post Delete Post Print Post

I have to concur, having driven another Disco, it did not do this. Its not the nature of the beast so to speak.
 

Brian Dickens (Bri)
Senior Member
Username: Bri

Post Number: 374
Registered: 08-2002
Posted on Wednesday, May 14, 2003 - 10:30 pm:   Edit Post Delete Post Print Post

Ah... it did not do it with the OME lift. Then after a bunch of changes it started happening. I have replaced the drag link, steering stabalizer, track rod, ball joints and roto flex and it is still there (granted I have about another inch of lift than OME).

Is there any possibility that the drive shaft was not put on properly?

Still not convinced that it is related to caster angle, but could be wrong and that is an expensive one to fix not knowing for sure that is it.
 

slider (Slider)
New Member
Username: Slider

Post Number: 8
Registered: 04-2003
Posted on Wednesday, May 14, 2003 - 11:04 pm:   Edit Post Delete Post Print Post

castor and toe!!!
 

Brian Dickens (Bri)
Senior Member
Username: Bri

Post Number: 376
Registered: 08-2002
Posted on Thursday, May 15, 2003 - 06:50 pm:   Edit Post Delete Post Print Post

If were caster how would you explain that the onset of the problem did not coincide with change in castor.

how about the other people on this topic. What size lift do you have?
 

Brian Dickens (Bri)
Senior Member
Username: Bri

Post Number: 379
Registered: 08-2002
Posted on Monday, May 19, 2003 - 02:30 pm:   Edit Post Delete Post Print Post

I am relatively sure that toe is now even. I.e. no toe-in and no toe-out.
 

Brian Dickens (Bri)
Senior Member
Username: Bri

Post Number: 388
Registered: 08-2002
Posted on Wednesday, May 21, 2003 - 03:53 pm:   Edit Post Delete Post Print Post

Bumpage...

Now, I put on my 235/85s and it is worse than with 245/75. Any clues?
 

Eric Ratermann (Ericrat)
Member
Username: Ericrat

Post Number: 49
Registered: 08-2002
Posted on Thursday, May 22, 2003 - 09:46 am:   Edit Post Delete Post Print Post

If you have enough lift to rotate the axle so the you now have negative castor increasing the tire size would make the condition worse. I think?

That is, as you increase wheel diameter the difference between where the steering center and the contact patch will increase.

Make sense?
 

Brian Friend (Brianfriend)
Senior Member
Username: Brianfriend

Post Number: 897
Registered: 09-2002
Posted on Thursday, May 22, 2003 - 12:02 pm:   Edit Post Delete Post Print Post

Eric,

I don't think tire size will affect castor at all because it does not change the angle.

If you look at a lifted vehicle you can actually see how castor is affected that is where the radius arms come in.

wich leads me to a ?. I wonder if it is possible to correct castor by adding spacers to the radius arms?

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