Just got my truck yesterday, it's an '87 Dodge Power Ram 50, 2.6L. I read in the repair manual that if the solenoid valve air filter is not replaced at regular intervals, it can cause rough idling. I'm experiencing something like that now and when I went to locate it, I couldn't seem to find it.

The book says it should be in models from 85 through 89, should mine have one? The EGR valve was taken out by a previous owner, don't know if that has anything to do with it.

Zac