I could use some help with vibrations

subbie racer · March 29th, 2011, 08:17 PM

im doing this for my dad, he has an 99 mustang conv. ever since he got his corvette toy, he has let the mustang take a slight shit, but since he got his tax returns he asked me to work on it since i take auto repair, first i thought it was the transmission, so i did a tune up since i heard spark plugs could mess with it, well the transmission problem went away, since i rarely ever drive the car he doesnt really tell me whats going on with it until he got the tax returns, anyways around 55mph and up it starts vibrating badly, so i changed out the wheel bearings/hub assembly and since i was down there i also shaved 3 rotors and replaced one with new pads all around, on the way home from school it started vibrating again but not as bad it starts at 55mph and u dont really notice it once im going 70, so i have no clue, any idea what else i should be looking into? i have new ball joints standing by in case that could be part of problem, im bringing it back into school tomorrow and it would be nice to have an idea where to look, thanks and sorry for this long message.

subbie racer · March 29th, 2011, 08:29 PM

also the tires were just rotated and the vibration is still in the front.

SON1C · March 29th, 2011, 08:41 PM

my stang vibrates around 55-65

subbie racer · March 29th, 2011, 08:51 PM

any idea what it might be? its annoying as hell and i dont even drive it much

SALEEN961 · March 29th, 2011, 11:25 PM

Have you rebalanced the wheels recently?

subbie racer · March 29th, 2011, 11:34 PM

i plan on putting it on the balancing machine tomorrow to be safe but im not sure when the last time he had it done

BlueScreaM · March 29th, 2011, 11:39 PM

Is it vibrating around the shifter or the whole car in general?

subbie racer · March 30th, 2011, 12:13 AM

feels like just the front end (the car is auto) and the steering wheel tend to shake alot

6BangEr · March 30th, 2011, 12:49 AM

I had same issue when I got my car and new (newer) tires did the trick. Also make sure all tires are same size. if they were staggered and you rotated them that could cause issues. (not calling you stupid but just mentioning anything that could have been overlooked.. even the obvious) also what wheels are on the car?? (rims)

mcqueen · March 30th, 2011, 01:00 AM

Do you drive in OD? Does it happen on acceleration or just when cruising?

subbie racer · March 30th, 2011, 07:00 AM

15 inch American racing rims, they came with the car, all even thread, dad doesnt burn out on them, and it happens when just cruising, someone told me to check the tie rods so im gonna give that a try also and we dont even touch the OD

craigdavey · March 30th, 2011, 08:05 AM

Tie rods would be my guess, but also could be a bent rim. I had a bent rim and once i got a new one the vibration went away.

Tang Stang · March 30th, 2011, 09:23 AM

It could also be caused by a bad alignment.

ag11hockey · March 30th, 2011, 09:24 AM

check your alignment too

roth515 · March 30th, 2011, 11:07 AM

On any car when you get wobble at 55 MPH it usually means the tired are not balanced.. I know you said you were going to try this.. but have you?

subbie racer · March 30th, 2011, 04:33 PM

never got a chance to put it on the balancer since they need to be replaced, 2 tires have camber wear and one has an air bubble, the tie rods looked good, so gonna pick up a set of tires and do an alignment and go from there, threw the bad tires in the back and the good up front, still a slight shake but wayy better than before.

6BangEr · March 30th, 2011, 11:35 PM

theres your problem right there.. bubble and camber?? get some new tires and get an alignment and you should be good. Also those tires look huge on those wheels.. lol

subbie racer · March 31st, 2011, 07:08 AM

yep thats the plan, gonna order them tomorrow when dad gets paid

and also the wheel bearings/hub assembly had some to do with it also, i took them apart, they were heated up inside, barely any grease and the bearings had scratches in them

March 29th, 2011, 08:17 PM	#1
subbie racer Newbie 99 mustang v6 vert. Join Date: Mar 2011 Location: florida Posts: 8 iTrader: 0 reviews	I could use some help with vibrations im doing this for my dad, he has an 99 mustang conv. ever since he got his corvette toy, he has let the mustang take a slight shit, but since he got his tax returns he asked me to work on it since i take auto repair, first i thought it was the transmission, so i did a tune up since i heard spark plugs could mess with it, well the transmission problem went away, since i rarely ever drive the car he doesnt really tell me whats going on with it until he got the tax returns, anyways around 55mph and up it starts vibrating badly, so i changed out the wheel bearings/hub assembly and since i was down there i also shaved 3 rotors and replaced one with new pads all around, on the way home from school it started vibrating again but not as bad it starts at 55mph and u dont really notice it once im going 70, so i have no clue, any idea what else i should be looking into? i have new ball joints standing by in case that could be part of problem, im bringing it back into school tomorrow and it would be nice to have an idea where to look, thanks and sorry for this long message. Last edited by Alexander III; March 29th, 2011 at 09:06 PM.

March 29th, 2011, 08:41 PM	#3
SON1C Run ur car, not ur mouth. 2003 Sonic Blue 4.6L Join Date: Jul 2010 Location: Northern Virginia Posts: 4,059 Blog Entries: 1 iTrader: 3 reviews	my stang vibrates around 55-65 __________________ 238rwhp/263rwtq Drew's Build Thread

March 29th, 2011, 11:39 PM	#7
BlueScreaM MM Fanatic Better than ONLYaUNCfan's 2012@lightspeed Join Date: Aug 2010 Location: Columbia, SC Posts: 3,368 iTrader: 0 reviews	Is it vibrating around the shifter or the whole car in general? __________________ Formerly, AhobosCheese and Cheddars.

March 30th, 2011, 08:05 AM	#12
craigdavey Enthusiast Join Date: Jul 2010 Location: Columbus, OH Posts: 652 iTrader: 0 reviews	Tie rods would be my guess, but also could be a bent rim. I had a bent rim and once i got a new one the vibration went away. __________________ 2004 3.9L Vert (sold)

March 30th, 2011, 09:23 AM	#13
Tang Stang Hardcore Enthusiast 2004 Mustang GT Join Date: Sep 2010 Location: Imperial, MO Posts: 1,961 iTrader: 2 reviews	It could also be caused by a bad alignment. __________________ Rod @ AzzKicker Cars 2004 Ford Mustang GT-The Driver-BBK CAI, PP TB & Inlet, Steeda UD's, SLP LM1, & 3.73's. 1990 Mercury Cougar XR7-The Meth Addict-5.0L DOHC Stroker w/2.1L KB SC. 1995 Ford F150-Mud Toy-5.0L, 4x4, 33's, & Warn 8274 Winch

March 29th, 2011, 08:29 PM	#2
subbie racer Newbie 99 mustang v6 vert. Join Date: Mar 2011 Location: florida Posts: 8 iTrader: 0 reviews	also the tires were just rotated and the vibration is still in the front.

March 29th, 2011, 08:51 PM	#4
subbie racer Newbie 99 mustang v6 vert. Join Date: Mar 2011 Location: florida Posts: 8 iTrader: 0 reviews	any idea what it might be? its annoying as hell and i dont even drive it much

March 29th, 2011, 11:25 PM	#5
SALEEN961 Regular 1999 V6 Mustang Join Date: Feb 2011 Location: Wayne, PA 19087 Posts: 272 iTrader: 0 reviews	Have you rebalanced the wheels recently?

March 29th, 2011, 11:34 PM	#6
subbie racer Newbie 99 mustang v6 vert. Join Date: Mar 2011 Location: florida Posts: 8 iTrader: 0 reviews	i plan on putting it on the balancing machine tomorrow to be safe but im not sure when the last time he had it done

March 30th, 2011, 12:13 AM	#8
subbie racer Newbie 99 mustang v6 vert. Join Date: Mar 2011 Location: florida Posts: 8 iTrader: 0 reviews	feels like just the front end (the car is auto) and the steering wheel tend to shake alot

March 30th, 2011, 12:49 AM	#9
6BangEr Hardcore Enthusiast 2000 Mustang V6 3.8 Join Date: Sep 2010 Location: Jacksonville, FL Posts: 1,834 iTrader: 2 reviews	I had same issue when I got my car and new (newer) tires did the trick. Also make sure all tires are same size. if they were staggered and you rotated them that could cause issues. (not calling you stupid but just mentioning anything that could have been overlooked.. even the obvious) also what wheels are on the car?? (rims)

March 30th, 2011, 07:00 AM	#11
subbie racer Newbie 99 mustang v6 vert. Join Date: Mar 2011 Location: florida Posts: 8 iTrader: 0 reviews	15 inch American racing rims, they came with the car, all even thread, dad doesnt burn out on them, and it happens when just cruising, someone told me to check the tie rods so im gonna give that a try also and we dont even touch the OD

March 30th, 2011, 09:24 AM	#14
ag11hockey Enthusiast 1999 Mustang V6 Join Date: May 2010 Location: Rochester NY Posts: 654 iTrader: 0 reviews	check your alignment too __________________

March 30th, 2011, 11:07 AM	#15
roth515 Regular 2004 v6 mustang Join Date: Oct 2009 Posts: 127 iTrader: 0 reviews	On any car when you get wobble at 55 MPH it usually means the tired are not balanced.. I know you said you were going to try this.. but have you?

March 30th, 2011, 04:33 PM	#16
subbie racer Newbie 99 mustang v6 vert. Join Date: Mar 2011 Location: florida Posts: 8 iTrader: 0 reviews	never got a chance to put it on the balancer since they need to be replaced, 2 tires have camber wear and one has an air bubble, the tie rods looked good, so gonna pick up a set of tires and do an alignment and go from there, threw the bad tires in the back and the good up front, still a slight shake but wayy better than before.

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March 30th, 2011, 11:35 PM	#17
6BangEr Hardcore Enthusiast 2000 Mustang V6 3.8 Join Date: Sep 2010 Location: Jacksonville, FL Posts: 1,834 iTrader: 2 reviews	theres your problem right there.. bubble and camber?? get some new tires and get an alignment and you should be good. Also those tires look huge on those wheels.. lol

March 31st, 2011, 07:08 AM	#18
subbie racer Newbie 99 mustang v6 vert. Join Date: Mar 2011 Location: florida Posts: 8 iTrader: 0 reviews	yep thats the plan, gonna order them tomorrow when dad gets paid and also the wheel bearings/hub assembly had some to do with it also, i took them apart, they were heated up inside, barely any grease and the bearings had scratches in them

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