vibration +mild grumble drumming sound

[brit]

95 full size Bronco Vibration On and Off road. At various RPMs. Ford's EVA (Electronic Vibration Analysis) finds vibration, initially said "fourth engine order" but it does not follow their diagnosis chart. Trusted mechanic's best GUESS is the need for new exhaust system (Suggestions? Recommendations?)

Rumble/Droning/Vibration at all speeds , it is worse when moving-- BUT vibrates while stationary on lift too.

 

[Broncoholics]

Sounds like a motor mount is bad. This will send a vibration through the truck when the bolt is touching the frame instead of rubber.

 

[brit]

Hey, thanks for the reply.

The motor mounts are new though.

The vibration did improve when they were installed!

Its just still there---

Brit