Hi!
I have an 07 Ford Fusion V6 with slight vibration on gas and brake pedals and steering wheel.
What happened a month ago I blew off a spark plug from the engine, I was running on 5 cylinders before I pulled over. Threads was ripped out and coil melted. Anyway, it has been re threaded, spark plug and coil replaced (without take the top of the engine off) and I haven't had any problems until now. Driving home I noticed my gas pedal has slight vibration when accelerating from a stop and a light pressure. Few days later I noticed the brakes pedal and steering wheel started to have a slight vibration as well when I'm on idle or stop on red light.
I'm not sure if blowing off the spark plug did some minor damage and is now getting worse... funny is I don't have engine light on so I don't know if it has something to do with it. Bad gas? Water in gas tank? Dirty fuel injectors? Dirty or sticky throttle? Throttle cable?

Advice please!
CW

Thoughts:

Check the torque on all of the spark plugs. Ensure helicoil is holding. Consider cleaning the throttle body and the Idle Air Control Valve (IACV). Replace the fuel filter, if it has not been changed in 30,000 miles.

Thanks! Waiting for the weekend to happen before I can do this and a friend of mine to supervise so I don't screw up. Also very overdue on replacing the fuel filter.
One thing I also noticed, it only vibrates when I'm on Drive... no vibration in Park, Neutral, Reverse or Load on idle.
I'll clean up the throttle body and IACV and replace the fuel filter and ill give you an update.

*UPDATE* sorry took this long.
Cleaned the throttle body and fuel injectors. The vibration stopped - problem solved.

Cheers!
Cristina W

Good job.