View Full Version : rough idle

08-01-2012, 08:20 PM
It seems like my car has a rough idle,seems a little more noticeable during cold start,but as it warks up,it seems to smooth out a little.Keep in mind,this car remains factory,everything except tires,right down to the original spark plugs.Has only a little over 12,000 actual miles on it..I did replace the fuel filter with motor craft filter,and pcv valve....What would be a few areas to check,mass sensor,idle air control,or some other component???Or some sort of troubleshooting procedure...

08-01-2012, 10:48 PM
What year is it?

08-02-2012, 04:40 PM
It is a 2001.....IRS 32 valve (4v) 4.6 v8

08-03-2012, 11:46 PM
If it isn't throwing a code, you can check the spark plug gap...

08-04-2012, 08:10 PM
ok,thanks ..I will refer to the manual for the correct gap size...