Bad Vibration (Challenging)
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Bad Vibration (Challenging)
I have a 99 4x4 Superduty 7.3 with 96k I just replaced the calipers,rotors, pads and anti sway bar supports. I also put 4 Dueller revo a/t s on I now have a vibration/grinding noise under the following conditions:
After I hit a bump- vibration starts hit another bump-vibration stops
Cold weather the grinding/vibration is very strong until it warms up. If I stop the truck the vibration will stop(almost like a release) When I start there will be no vibration until I hit a bump. The vibration occurs whether I am in gear or not, 4x4 or not. At higher speeds (over 40 mph) the vibration is steady.
Should I pull apart the axels and check for bad bearings? Any ideas?-There are so many threads on vibrations but none seem similar to mine.
Thanks
After I hit a bump- vibration starts hit another bump-vibration stops
Cold weather the grinding/vibration is very strong until it warms up. If I stop the truck the vibration will stop(almost like a release) When I start there will be no vibration until I hit a bump. The vibration occurs whether I am in gear or not, 4x4 or not. At higher speeds (over 40 mph) the vibration is steady.
Should I pull apart the axels and check for bad bearings? Any ideas?-There are so many threads on vibrations but none seem similar to mine.
Thanks
FTE Leadership Emeritus
Joined: Jan 2003
Posts: 161,999
Likes: 75
From: 3rd Rock
Originally Posted by jeffbk
I have a 99 4x4 Superduty 7.3 with 96k I just replaced the calipers,rotors, pads and anti sway bar supports. I also put 4 Dueller revo a/t s on I now have a vibration/grinding noise under the following conditions:
After I hit a bump- vibration starts hit another bump-vibration stops
Cold weather the grinding/vibration is very strong until it warms up. If I stop the truck the vibration will stop(almost like a release) When I start there will be no vibration until I hit a bump. The vibration occurs whether I am in gear or not, 4x4 or not. At higher speeds (over 40 mph) the vibration is steady.
Should I pull apart the axels and check for bad bearings? Any ideas?-There are so many threads on vibrations but none seem similar to mine.
Thanks
After I hit a bump- vibration starts hit another bump-vibration stops
Cold weather the grinding/vibration is very strong until it warms up. If I stop the truck the vibration will stop(almost like a release) When I start there will be no vibration until I hit a bump. The vibration occurs whether I am in gear or not, 4x4 or not. At higher speeds (over 40 mph) the vibration is steady.
Should I pull apart the axels and check for bad bearings? Any ideas?-There are so many threads on vibrations but none seem similar to mine.
Thanks
Enjoy FTE
Fleet Mechanic
Joined: Nov 2001
Posts: 1,553
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From: Corpus Christi, TX
Your vibration sequence looks familiar (vibrates after hitting bump, doesnt stop till another bump hit), I think in the past another member had the same problem. If I remember correctly, it's the wheel bearings. I'm not 100% positive on that though.
I feel your pain on the number of vibration threads, there are TONS!
I'm sure someone will be along to help you shortly!
I feel your pain on the number of vibration threads, there are TONS!
I'm sure someone will be along to help you shortly!
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