autozone has become good for something finally, I've been using their website for general how to part changes. They have vehicle specific information, sometimes with pictures and diagrams. you do have to create a free account, but so far for me they've been fairly accurate. I can't find a "solenoid air valve" but this is the emission control section for the 88 power ram. http://www.autozone.com/autozone/rep...00c15280088d47