Hello everyone, I suspect I may have some idle issues on my 2007 Ford Ranger. It is a 4L V6 with a manual 5 speed transmission. This is my problem; I had recently fueled the truck up, everything ran fine until I went to slow down to turn off the highway to work, as I took the turn the truck stalled on me. I was able to get it restarted after the turn and after that the truck started to idle very low (500 rpms) and at times wanted to stall, subsiquently idling a bit rough too (I suspect however that was the imminent stall). Ran some seafoam through it, drove it, ran another tank of gas through it, and now I have noticed that the RPMs are rather high; out of gear it stays at 2000, and then, rather suddenly, drops to 1500 or so, and then slowly works its way back up to 2000 until I come to a complete stop, at which point it will work its way down to 750. Thus far I have cleaned the MAFS, the TB, the air filter, replaced the IACV, cleaned the connector for the TPS, and replaced the fuel filter. I also disconnected the battery and let it sit for 10 min. First I have seen it stick to 2 grand when its out of gear. Always seen it drop down to at least 1000, if not 750. Note; I have yet to replace the PCV valve, it is due but I am doubtful to think that would cause this? Suppose thats why I am on here... Truck has 321,000 KM and ran fine up until now. Other than the RPMs, truck purrs like a horny kitten. No codes have been thrown