idling problem

[rangerdude91]

ok this just happened 4 days ago. when i start the truck it idles ok for a minute or two but if i let it sit the RPMs drop and if i have it in gear and am waiting at the light long enough it sometimes shuts off. it runs fine while driving but not idling. i changed the plugs and checked all the wiring around the motor. i live in va and the weather isnt that cold until today so i dont think it is the weather. could it be the fuel filter or injectors or something else? please let me know what you think

 

[Explorin94]

More likely the filter than the injectors. Change the fuel filter and go from there.

 

[rangerdude91]

alright thanks