2003 Bonneville SLE vibration when braking - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Pontiac When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 07-07-2011, 01:24 AM   #1
-- SITE DONATOR --
True Car Nut
Thread Starter
 
ymmot04's Avatar
 
Join Date: May 2009
Posts: 4,638
Thanked 5 Times in 4 Posts
ymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of light
Default 2003 Bonneville SLE vibration when braking

I've been ignoring this for a couple months now, but I realize I really need to get it fixed. I already replaced the left wheel hub, the right probably needs to be replaced but I don't think that is the cause of this issue. Had someone mention the tie rods, not sure how to check them or what the symptoms are.

My symptoms are when I slow down at speeds above 35ish, I get a bad vibration that makes the whole car shake. The brakes do not pulse and the rotors appears to be fine. When I turn the steering wheel while parked it makes a kind of crunching noise. It'* not the power steering pump, sounds like its coming from the steering rack.

Hoping someone can tell me what I need to check or will know exactly what the issue is.
ymmot04 is offline   Reply With Quote
Old 07-07-2011, 08:44 AM   #2
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Make sure the rack is tight to the sub frame.
Danthurs is offline   Reply With Quote
Old 07-07-2011, 09:10 AM   #3
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

to test tie rod ends, if you can see the tie rod ends through the wheel just have someone move the wheel back and forth with the weight of the car on it you should see no play. a crunch when turning is alot of times the ball joints.

the alignment is half the cost of the job these days so if i suspect either part, i will do all the ball joints, upper mounts, and tie rod ends just so i dont have to do the alignment twice, plus if one is wore out the others arent far behind
jwfirebird is offline   Reply With Quote
Old 07-07-2011, 10:04 AM   #4
Senior Member

True Car Nut
 
2kg4u's Avatar
 
Join Date: Sep 2006
Location: Windsor, Ontario / Detroit, Michigan
Posts: 4,804
Thanked 220 Times in 181 Posts
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

Jack the car up on the right side so the front right tire is in the air. Try to wriggle the tire side to side, and then up and down. If it moves side to side, but not up and down, replace the tie rod. If it moves side to side and up and down, replace the hub/bearing. It takes very little movement to detect a problem. If you want a frame of reference, jack the front end up so both tires are off the ground and compare the tire movement on the left tire to right tire.

Pull the tire off and look for any obvious problems, such as worn bushings or loose bolts. Check the steering rack like Dan suggested.

Vibration when slowing down is usually the sign of a warped rotor. It may look flat, but you need to check it with a run-out gage.

Do you hear any rubbing/grinding/howling/etc. noise from the front right wheel when making a hard left turn. If so, that is one sign of a bad bearing.

Warped rotor, bad bearing and worn tie rod end are high on my list of suspects.
2kg4u is offline   Reply With Quote
Old 07-07-2011, 10:14 AM   #5
-- SITE DONATOR --
True Car Nut
Thread Starter
 
ymmot04's Avatar
 
Join Date: May 2009
Posts: 4,638
Thanked 5 Times in 4 Posts
ymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of light
Default

There is no rubbing, grinding, or howling when slowing down, just the vibration. The left wheel had side to side and up and down wiggle, replaced the hub and now it is solid. The right wheel I believe just has side to side wiggle, I'll have to check it again. Seems that would point to needing to replace the tie rods. I'll probably do the hub anyways, but I've never replaced a tie rod so I will need some coaching. How hard of a job is it?

I've always heard that a warped rotor will cause the brake petal to pulse, I have no pulsing at all. I have heard of bad wheel hubs warping rotors though.
ymmot04 is offline   Reply With Quote
Old 07-07-2011, 10:15 AM   #6
Senior Member
True Car Nut
 
sawgunner's Avatar
 
Join Date: Jan 2009
Location: Dover, NH
Posts: 7,122
Thanks: 0
Thanked 0 Times in 0 Posts
sawgunner is on a distinguished road
Default

Hey Tommy i'll come up this weekend to Dixon and get ya taken care of
sawgunner is offline   Reply With Quote
Old 07-07-2011, 10:25 AM   #7
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

I've fixed a few warped rotors that I couldn't feel in the peddle. A sure sign of a bad rotor is the vibration gets worse the more you brake.
Danthurs is offline   Reply With Quote
Old 07-07-2011, 10:28 AM   #8
Senior Member
True Car Nut
 
sawgunner's Avatar
 
Join Date: Jan 2009
Location: Dover, NH
Posts: 7,122
Thanks: 0
Thanked 0 Times in 0 Posts
sawgunner is on a distinguished road
Default

last time i was up there he wiggled the steering wheel and there was a clicking type sound around the rack. i thought of the rotors as well but on a 2000+ it'* usually the backs that get the warping. will have to take a closer looksy
sawgunner is offline   Reply With Quote
Old 07-07-2011, 10:31 AM   #9
-- SITE DONATOR --
True Car Nut
Thread Starter
 
ymmot04's Avatar
 
Join Date: May 2009
Posts: 4,638
Thanked 5 Times in 4 Posts
ymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of lightymmot04 is a glorious beacon of light
Default

I won't be there this weekend, but next weekend for sure.
ymmot04 is offline   Reply With Quote
Old 07-07-2011, 10:33 AM   #10
Senior Member
True Car Nut
 
sawgunner's Avatar
 
Join Date: Jan 2009
Location: Dover, NH
Posts: 7,122
Thanks: 0
Thanked 0 Times in 0 Posts
sawgunner is on a distinguished road
Default

tie rods are easy if ya need them. biggest thing is making sure the length stays the same so you don't need to spend another $80 on an alignment.

let me know and i'll shoot up
sawgunner is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Vibration at speeds above 70 MPH, seat shaking, 2003 Bonneville vendo 2000-2005 15 06-13-2013 09:07 AM
2003 lesabre vibration timtrader03 Buick 10 02-19-2012 06:38 PM
2003 Bonneville SLE leaking coolant ymmot04 2000-2005 8 05-16-2011 11:09 AM
Vibration and pulsing Above 55 while braking Purplehazeir 2000-2005 3 10-28-2008 04:17 PM
2003 SLE Exhaust - On A 1999 SLE? toxictelevision Performance, Brainstorming & Tuning 3 02-23-2003 07:41 AM


Tags
2003, bonneville, braking, sle, steering rack, vibration

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:10 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.