All of a sudden, my '98 Ranger 3.0 with almost 400K trouble free miles is acting weird. No codes, but it won't start on the 1st try no matter how long it cranks- on the 2nd try, it immediately starts right up and runs great. Doesn't matter if it's cold or if it was parked for 5 minutes and warm. I heard the cam positioner squeaking when cold starting, so I replaced it. But it still is acting strange. With no codes, I don't want to throw a bunch of parts at it. Any ideas?