Just in case that is not the problem I would like to go deeper!
Is it possible that you can get me the code?
First well start with loss of spark, first examine the wire to the cylinder that is missfiring examine it completely to verify it is not cracked or cut. Then check the distributor cap, one stud may be covered with carbon causing insufficient spark to go to that spark plug. If that checks out take out the plug, and check the gap if it checks out good then we have just ruled out spark!
Next, thing that coudl be amiss would be a plugged fuel injector, check for voltage at it, and if possible use a probe to listen to it with the car running and see if it is buzzing. If that is all good, then you should clean it, this would be a good time to clean all of the injectors, but this will be a undertaking, not to hard. Involves taking off the intake manifold and pulling out the fuel rail and injectors.
Another thing could be loss of compression, due to a bad exhaust valve on the cylinder, perform a compression test to check this, if it is low and one adjacent to it is, it may be a badheadgasket especially if it is loosing coolant.
That code would be nice, because it may be a random missfire.
Sunday, November 25th, 2007 AT 8:55 PM