PO500 story continues with new twist

[Billme]

Does this post from AWAR show anything that you're looking for?

Why won't it start.

Removed and charged my battery, now my 2001 Eddie Bauer Expedition will not start. Turning the key does nothing, not even a grunt. Now what do I do?

www.expeditionforum.com

No, but I looked at my positive cable and noticed it looks crusty in the wire inside and will change that out soon just because it’s old..
Just changing the battery out unless he had a bad battery (Known to have happened) is more likely cable or connection.. Or how he might have hooked it up.. There is a A&B inline fuse I’ve seen on the drawings, but I’ve never have looked for them.. I would certainly check the ignition solenoid, and its ground..

 

[Billme]

I’ve come to the conclusion I have a bad PCM.. I just had some new codes come up all of sudden plus the P500 code.. All the codes in the pass are ghost, because after I do a hard reset, and upgrading components, the longer it takes to show up.. If it was real, it would show up immediately.. I’m going to continue replacing the easy stuff, just because it’s old such as cables, and as soon as I learn to take apart this Battery junction box without destroying it, I will do that..
Grok recommended other companies to fix my original PCM, not the Flagship one, although I may send it to see if it’s also corrupted.., but what about the GEM at this point… I never liked how upfix said about that situation… So I may take it out and send it too..
So what made me think the PCM is bad? My evap control gets funky when all this happens creating excessive vacuum, but acts correctly after a hard reset.. This has nothing to do with the GEM.. It’s directly controlled by the PCM..
Manoman, if this is so, then just about every part I’ve bought except for the timing job has been junk on buying local parts at the big two..
Anyway I’m just driving it, I can tell when I need to reset, which is getting longer duration as I said.. When I get a second wind I’ll continue the fight hehe