1999 Convertible driveline vibration - MustangForums.com

General Tech Ask model specific questions in the appropriate category below. All other general questions within.

Thread Tools Search this Thread
Old 12-14-2010, 09:32 AM   #1
Thread Starter
Join Date: Dec 2010
Location: WV
Posts: 1
Question 1999 Convertible driveline vibration

I just bought this 1999 Mustang Convertible, V6 automatic. When I get to 50 MPH a vibration occurs that can be felt through the seats. It's a low frequency rumble that is from 50 to 60 MPH only. You can feel it though your whole body. Also, it only does it under power. As soon as you back off the throttle it disappears. I don't detect any clunking, thinking it was a bad u-joint but I've only driven it 300 miles mostly on the highway. I originally thought it may be tires but when I noticed the pattern of vibration under load, no vibration under no load it got me concerned. I never owned a Mustang before so any feedback/help is greatly appreciated.
Menocar is offline   Reply With Quote
Old 12-14-2010, 11:43 AM   #2
4th Gear Member
AzPete's Avatar
Join Date: Aug 2008
Location: Panama City, FL
Posts: 1,214

First of all, I would have the tires balanced and checked for bent rims or separated tires. This would eliminate a common source. If that does not change the vibration, you might try rotating the drive shaft 180* on the mount to the rear end. Easy to do and could change how thing vibrate. Bad u-joints do not always "clunk" either. Do one thing at a time to see what makes a difference.
AzPete is offline   Reply With Quote
Old 12-14-2010, 06:56 PM   #3
4th Gear Member
rygi23's Avatar
Join Date: Dec 2007
Location: Maryland
Posts: 1,503

it's definitly the drivetrain but don't think it's u-joints. Probably doing it after the tranny shifts into OD, that's when there's more torque on the drivetrain. Flawed, or loose, engine or transmission mounts are my guess.
rygi23 is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
2014 convertible water drains jerrytubes 2005-2014 Mustangs 2 10-23-2015 01:11 PM
convertible tips and tricks lincolnshibuya V6 (1994-2004) Mustangs 3 10-07-2015 10:01 PM
2002 convertible driver window issue cr620 V6 (1994-2004) Mustangs 1 10-03-2015 07:39 AM
4r70w torque converter q's guitarman376 4.6L (1996-2004 Modular) Mustang 0 09-30-2015 06:54 PM
Rough idle and vibrating 4cylinderplus2 V6 (1994-2004) Mustangs 9 09-30-2015 06:26 PM

00, 1999, 60, automatic, drive, driveline, gt, line, load, mount, mustang, transmission, v6, viberation, 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

Forum Jump

Featured Sponsors
Vendor Directory

All times are GMT -5. The time now is 06:31 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.