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 Post subject: SHIMMY and SHAKE
PostPosted: Wed Jun 06, 2007 4:22 pm 
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3 Deuce Weber

Joined: Wed Apr 04, 2007 3:46 pm
Posts: 84
Location: Minnesota
Car Model:
I have a side to side shake in my steering wheel. It is present at all speeds. Is this an out of balance wheel/tire,or wheel bearing? What should I check first? Thanks to all!!


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 Post subject:
PostPosted: Wed Jun 06, 2007 4:44 pm 
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Supercharged
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Joined: Wed Oct 12, 2005 9:00 pm
Posts: 2861
Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
chk tires 1st for busted belt and/or outta round.


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 Post subject:
PostPosted: Wed Jun 06, 2007 4:48 pm 
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Supercharged
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Joined: Mon Sep 26, 2005 5:09 pm
Posts: 2946
Location: Gilbert, Arizona
Car Model: 1962 Plymouth Valiant Signet
Bad tire or bent wheel is the most likely cause of this problem.

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'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.


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 Post subject:
PostPosted: Wed Jun 06, 2007 7:53 pm 
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3 Deuce Weber

Joined: Wed Apr 04, 2007 3:46 pm
Posts: 84
Location: Minnesota
Car Model:
I'll go new tire hunting tomorrow or Friday.I'll let you know what I found out. Thanks for the help.


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 Post subject:
PostPosted: Thu Jun 07, 2007 12:48 pm 
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EFI Slant 6

Joined: Mon Oct 09, 2006 12:49 am
Posts: 267
Location: Burlington / West Seattle
Car Model:
Thomas, are you running the factory type steel wheels? or some aftermarket jobs?


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 Post subject:
PostPosted: Thu Jun 07, 2007 7:55 pm 
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3 Deuce Weber

Joined: Wed Apr 04, 2007 3:46 pm
Posts: 84
Location: Minnesota
Car Model:
I am running factory aluminum wheels on this 1992 Grand Caravan.(My other vehicle is a 1979 d-100 pickup with a slant six).


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 Post subject:
PostPosted: Fri Jun 08, 2007 5:14 am 
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SL6 Racer & Moderator
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Joined: Sat Oct 19, 2002 12:06 pm
Posts: 8657
Location: Silver Springs, Fl.
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Quote:
I am running factory aluminum wheels on this 1992 Grand Caravan.(My other vehicle is a 1979 d-100 pickup with a slant six).
You really need to specify the vehicle. Everyone that posted assumed you were talking about a rear wheel drive Mopar. On a front wheel drive vehicle, a bad CV joint can cause that problem., as can a bad front bearing/hub assy (though not as likely).

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225


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 Post subject:
PostPosted: Fri Jun 08, 2007 9:30 pm 
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3 Deuce Weber

Joined: Wed Apr 04, 2007 3:46 pm
Posts: 84
Location: Minnesota
Car Model:
I purchased a good used tire today, for the right front and had it balanced. However, the problem still exists. It is especially noticeable when braking and slowing down to 15-20mph.Could it be the other front tire or perhaps a warped brake rotor? More opinions wanted. THANKS.


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 Post subject:
PostPosted: Sat Jun 09, 2007 6:54 am 
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Supercharged
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Joined: Wed Oct 12, 2005 9:00 pm
Posts: 2861
Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
Yeah it could be either, or else check (were talking FWD minivan, right?) an inner CV joint, differential bearings in the transaxle (they can be replaced w/o pulling the whole trans) does yours have "equal length" CV shafts with a stub axle/carrier bearing/U joint setup on the pass side?? If so check the U joint/carrier bearing. Also check your motor/trans mounts; FWDs are more "picky" so to speak and complain by shimmying/shaking if CV drive angles are off. :idea: Junk it and buy a RWD B van instead (yeah, yeah I know) :P :lol: On a CV prob, dont even bother trying to replace just the inner joint; reman halfshafts can be had for like $60.


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 Post subject:
PostPosted: Sat Jun 09, 2007 6:59 am 
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Supercharged
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Joined: Mon Sep 26, 2005 5:09 pm
Posts: 2946
Location: Gilbert, Arizona
Car Model: 1962 Plymouth Valiant Signet
to eliminate the possibility of it being a tire/wheel just swap the front to back and test drive. If the shimmy goes away or changes significantly then you;ve found your culprit. If not then you need to look at brake rotors, cv joints, steering linkage, wheel bearings, and alignment. To try to fix it by guess and try can get very expensive. You'll likely be money ahead by taking it to a front end shop for proper diagnosis.

_________________
David Kight
'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.


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 Post subject:
PostPosted: Sun Jun 10, 2007 12:21 am 
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4 BBL ''Hyper-Pak''

Joined: Mon Aug 08, 2005 1:32 am
Posts: 37
Car Model:
it could also be hte diff. I replaced the diff in one of those front wheel drive mitsu/chrysler jobbies once, hte spiders had chunks missing. is it an auto?

is it clacking? if so its either the diff or a cv joint. if not, it could be a ball joint because of the load that FWD puts on the suspension.

_________________
63 valient 4 speed over drive, holly 390, dutra duals, power steering, ac, hydraulic roof, KH 4 piston disks, kyb gas adjust all round, sway bars front and rear, 8 3/4 rear axcel and the ugliest green you ever saw


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 Post subject:
PostPosted: Sun Jun 10, 2007 6:54 am 
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Supercharged
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Joined: Wed Oct 12, 2005 9:00 pm
Posts: 2861
Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
An inner CV won't usually clunk/clack as an outer will when bad and alignment WON'T cause vibration/shimmy/shake. Pull? Yeah. Tire wear?? That too. Squirrelly driving if WAYYYY out? Yeah that too.


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 Post subject:
PostPosted: Sun Jun 10, 2007 9:27 am 
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Supercharged
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Joined: Mon Sep 26, 2005 5:09 pm
Posts: 2946
Location: Gilbert, Arizona
Car Model: 1962 Plymouth Valiant Signet
Uneven or incorrect caster will most certainly cause front end shimmy. I've seen it many times.

_________________
David Kight
'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.


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 Post subject:
PostPosted: Mon Jun 11, 2007 2:06 pm 
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Supercharged
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Joined: Wed Oct 12, 2005 9:00 pm
Posts: 2861
Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
Caster isnt adjustable on these, so if that was found to be, I'd start looking for bent parts. Sounds like the typical "caravan shake" that Ive seen and been driven nuts by many times... :roll:


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 Post subject:
PostPosted: Mon Jun 11, 2007 7:58 pm 
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Supercharged
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Joined: Mon Sep 26, 2005 5:09 pm
Posts: 2946
Location: Gilbert, Arizona
Car Model: 1962 Plymouth Valiant Signet
That may well be. I had a 92 Voyager and never had a problem with the front end and I never had occasion to become acquainted with the front suspension other than that it was a fairly typical McPherson strut design.

_________________
David Kight
'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.


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