1999 Mercury Mountaineer 6 cyl Four Wheel Drive Automatic 186000 miles
the car seems to run good when cold but when it gets warmed up it starts to missfire. I changed the spark plugs and spark plug wires and it didnt help. I took off one of the spark plug wires on the coil after it was warmed up and it was sparking eratically.
have the same problem?
Tuesday, March 2nd, 2010 AT 6:05 AM