Ah yes. Earlier I was going to mention the need for intentional replacement
of older parts to assure extended function during an emergency. Replacing functional fuel pumps, alternators, etc. with new one's instead of waiting for failure which usually occurs at the most inconvenient times.
My dutiful, beautiful, F150 (100k) - quit running. She was perfect, as always, when I went into the store, when I got back in the cab and turned the key she just spun. And spun.
The mechanic said "no fuel pressure", so a new pump was installed and we were all happy. For two days. As it turns out Ford PAS (passive anti-theft system) when it doesn't recognize the ignition key (an intermittent event and switching between two keys would produce more positive but still random results), turns off the fuel pump. You guessed it, it's back at the shop and the mechanic is working out the problem.
Caveat: FoMoCo wanted $50.00 just to check the key and oh yeah, the not running truck had to be there also. After a short conversation with the clerk it became apparent that the test was a "go, no go" or the same "test" I had been performing. By denying them I may have saved $500.00 for them to hunt and peck then repair the problem. My cost may be $500.00 but it will be $500.00 less than the Dealership price.
I'm not complaining about the truck, it has provided excellent and dependable service.