Changed cap,rotor,and ignition module still has clicking
Though this responce may be out of place n regards to an issue I had w/ my 97' astro van. It continued hearing a (rather annoying) clicking - ticking noise that would increase in speed (& just slightly louder) when I pressed on the accelerator, but when letting off, it would always slow back down to what it sounded like at idle speed. This went on for quite a long while, until I "shockingly" found that, in fact, that one of the wires (if I recall, it being the main coil wire) was arcing/sparking (clicking-ticking noise) on the transmission fill tube or dipstick tube. You could see the tiny spark as it was happening only at night or w/ very low light. Just fyi, don't do as I did, by attempting to move or touch the wires as the vehicle is running or even when cranking the engine over to start! Haha, okay laugh it up, but if it happens to you (or when) you'll surely find it to be a rather "shocking" experience!!
On a side note, I think this may have also been related to a problem I had (only on occasion for some reason) w/ the van not starting or turning over at all. So, after moving and securing the wire as they should be, (fastened to a plastic retaining clip/clasp that holds them in place), the annoying clicking - ticking noise had completely stopped occuring. If this could be the issue anyone is having, I hope this might help you out!
P.S. although mine held up for awhile, your wire(s) may need to be replaced w/ new ones. And, I suppose this could happen to almost any model vehicle really, so I wouldn't rule this out when troubleshooting similar issues.
on Feb 23, 2015