2001 ford focus vibration

Is it the dash vibrating or is because of wheel vibration? Generally the dash is pretty sturdy and unless its been in a major prang and the panel beaters have missed putting some of the screws back, it shouldn't vibrate. If the vibration starts at a certain speed and the steering wheel vibrates too, I would say its a wheel balance problem. Any Tyre place should be able to rebalance the wheels and sort this out for you. There is a possibility of a drive shaft vibration but im not sure how you check that out. If it is the dash, then good luck... There are many screws, bolts etc that hold the dash together, You will have to by trial and error , see which one is loose or missing. Before you do anything though, check that nothing is loose and rattling or vibrating in your glove box, ashtray or tissue holder. . There used to be this ad on TV showing a Guy who stripped his entire dashboard down to fix an annoying rattle. When he was looking at the hundred parts or so lying on the driveway, he found a couple of spare coins nuts and bolts rattling around in the ashtray which was the cause of the rattle!

rough running..get a mechanic to listen to the car.. the engine may be bad..any smoke comming from it at all?

I have an 04 zts and mine used to make a lot of noises like you have and I had a bad motor mount on passenger side.Replaced it and no more rattles like that

I would image you need to get the tires rotated and balanced. Vibrations can be odd can come and go at various speeds. Try at least a rotate and balance, maybe an alignment if you can afford it, and hopefully that will get rid of the vibrations.

Possibly could be front passenger motor mount is worn out, causing engine to vibrate excessively.

Describe the vibration better. Is it a manual or automatic. It is when starting off, or at higher speed. Does it happen when slowing down or turns. Normally you can tell when motor mounts are bad because of the deteriorated rubber bulging out, oil soaked, cracked or ripped, etc. Or pry on the engine with a long 2x4.

are you sure it is a miss or a vibration? Focuses are famous for a vibration at idle because of the upper motor mounts. some get so bad that the whole dash vibrates at stop lights.

it sounds like valves tapping or valve tap, im wondering if Lucas oil stabilizer might help in this situation any other opinions? the fact that it is recommended by so many people including myself, i use it alot

google Lucas Oil / 32 oz. heavy duty oil stabilizer

Check the exhaust manifold gasket. I have a 2003 SVT Focus I had a problem with it loping at low RPMs. I had a free flow exhaust system. When I bought a new exhaust manifold I replaced the gasket and the problem went away.

IS YOUR LOUD VIBRATION A LOUD RATTLE IF SO IT COULD BE YOUR CAT BREAKING UP THIS WILL CAUSE BAD RUNNING ..GIVE YOUR ENGINE A GOOD REV 3 or 4 TIMES OUT OF GEAR AND LISTEN FOR A RATTLE,,,,, HOPE THIS HELPS IF NOT CHECK THAT THE EXHAUST IS NOT BLOCKED ?? BEST OF LUCK-ELL BOY.