A slight shudder @ idle. Fuel Filter?

[302Xplorer]

My X has developed a shudder or hiccup @ idle.
What are the possible causes?

 

[spdy0001]

Mine was also had a shudder at idle and I swapped the plugs and now im good.

I would swap plugs and wires and it if doesn't go away then do the fuel filter. Might also want to pour in a bottle of dry gas

 

[ThePhoenix]

that worked for me...plugs and wires then fuel filter. You know better than anyone when they were last replaced....

 

[aldive]

Have you checked the fuel pressure?

 

[ThePhoenix]

If he had bad fuel pressure...wouldnt the pressure be less at throttle than idle...making the stutter more evident at higher revs?