Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

Vibration in 3rd gear under WOT

Thread Tools
 
Search this Thread
 
Old 09-03-2007, 02:39 PM
  #1  
67 evil eleanor
5th Gear Member
Thread Starter
 
67 evil eleanor's Avatar
 
Join Date: Nov 2006
Location:
Posts: 2,106
Default Vibration in 3rd gear under WOT

I was cruising the other day in the "E" when I noticed a unuasual vibration. I was going up an entrance ramp (small grade) onto the 4 lane in 3rd gear (full throttle) and noticed a vibration that seemed to be in the front (side to side feel in the wheel). It seemed as if something like a tie rod endwas worn out. The car has a Mustang II fornt (all new). On this day it was somewhat hot (95 or so) for our area and the surface tempature of the road I'm sure was well in the hundreds. I did notice the tires were spinning a little and the front of the car was up a little. I would guess my speed was between 60 and 75 MPH.After this issue, I returned home and checked the normal stuff and found nothing. Tranny mount, engine mount, suspension, all OK. Since then I have tried to repete the conditions when this happened butat different locations. So far the car has ran smooth everytime and this vibratin has'nt occured again. So what gives? Could it be that the geometry of the suspension changed when the front of the car was up, or is this some kind of wheel hop from the spinning tires, my drive shaft was balanced and the U joints are new and show no play. Also the rear bearings, input and wheel checked out fine. Any Ideas?
67 evil eleanor is offline  
Old 09-04-2007, 07:20 PM
  #2  
Scott H.
5th Gear Member
 
Scott H.'s Avatar
 
Join Date: May 2005
Location:
Posts: 2,445
Default RE: Vibration in 3rd gear under WOT

.....

Last edited by Scott H.; 01-13-2010 at 09:34 PM.
Scott H. is offline  
Old 09-04-2007, 08:24 PM
  #3  
Aussie66Fastback
5th Gear Member
 
Aussie66Fastback's Avatar
 
Join Date: Sep 2006
Location: Australia
Posts: 2,266
Default RE: Vibration in 3rd gear under WOT

do you mean you felt a shudder in the steering wheel?
If yes, i would be looking for a wheel weight missing or moved (depending on what sort of weights used)
Or a wheel not as well balanced as it should be - rim out of round, not enough attention to inner v outer weights.

the other one ot consider that it may simply be in the road surface on that particular ramp. sounds dumb, but there is a road near my place that had some piece of tracked farm machinery drive down it one time for about 500yds. You cant seeany marksand by time you figure somethings not right, you've passed it. It just causes a little shudder thru the steering wheel.
Aussie66Fastback is offline  
Old 09-04-2007, 09:14 PM
  #4  
67 evil eleanor
5th Gear Member
Thread Starter
 
67 evil eleanor's Avatar
 
Join Date: Nov 2006
Location:
Posts: 2,106
Default RE: Vibration in 3rd gear under WOT

I checked all the weights and they seem to be in place. Undercarriage inspection shows nothing loose or cracked. Maybe tommorrow I will try that same ramp and see if it happens again. Thanks.
67 evil eleanor is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
4cylinderplus2
V6 (1994-2004) Mustangs
10
10-09-2020 07:45 PM
baddog671
Archive - Parts For Sale
20
07-26-2016 01:20 PM
Bokeo
Street/Strip
6
10-10-2015 08:28 PM
KingRando
2005-2014 Mustangs
5
10-02-2015 08:06 AM
guitarman376
4.6L (1996-2004 Modular) Mustang
0
09-30-2015 05:54 PM



Quick Reply: Vibration in 3rd gear under WOT



All times are GMT -5. The time now is 02:05 PM.