2008 Ford F150 Purge Valve
Ok yall hears a little bit of into in the 2008 and later F150 with a 4.6 or 5.2 engines, unlike the older Fords these don't necessarily stall upon filling the tank it the purge valve is bad, there's a whole coffee can full of different problems caused bu this monster
(1) you get P0442 reset it and it comes back again and again
(2)eventually if you don't do anything the battery light comes on and off, you test the battery and alt and both are fine, but you remember a code about a short in the purge valve circuit, changing the purge valve in this situation will fix both the battery light and the P0442 code.
This has been a two year test and research project, and in that 2 years I have discovered that if I had known how much was computer controlled in that thing I'd have bought the 85 F100 sitting next to it instead, I have a obd code reader that dos abs and a computer interface cable and a $450 computer program just for this thing,
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