The engine will run rough with a faulty fuel injector. More than one or two bad fuel injectors at one time would be unusual.
out of balance
My car did this. I took it to get the heads de-carbonized and the fuel injectors cleaned out and it stopped doing this. Most likely it was the fuel injectors causing the problem.
Cars vibrate.
if you have engine oil in your fuel injectors then you have bigger problems then your car not starting..
There are ( 8 fuel injectors ) on a 2001 Lincoln Town Car
A car's steering wheel will vibrate when driving if the car's alignment needs to be adjusted.
check your fuel filter, injectors, catalydic converter, if it has a Carb. check it
i nono cave man, we have no car
As you increase your speed the whole car will begin to vibrate, not shake but vibrate. The images in the mirrors will be just a blur.
use a noid light set to determine if pulse is going to the fuel injectors.
There are many solenoids in a car, fuel injectors, egr are some.
One for each cylinder, 8 cylinders would have 8 injectors.