What is responsible for a loud vibration on 2000 ford focus?

Answer 1

Note that you gave a very vague description of your problem. From an auto technician's point of view, you need to give more details in order to zero in on the true nature and cause of your concern. Here's what I'm talking about (When does the vibration occur? At idle, at 30 mph, 70 mph, when cornering, etc? Does the problem occur all the time, or is it intermittent?)

At any rate, here are some Ford TSBs and a recall that pertain to 'Vibrations' for the make, model and year that you listed.

TSB Number: 09-15-07

TSB Release Date: 08-10-2009

TSB Description: Engine Vibrates at Idle

TSB Number: 99-19-04

TSB Release Date: 09-20-1999

TSB Description: Brake Vibration

Recall Number: 00V303000

Recall Release Date: 10/03/2000

Recall Description: Rear Hub/Drum Seperation From Vehicle