What to check on when buying a 2000-2006 ford f150? Things to worry about? What to maintaine?

What to check on when buying a 2000-2006 ford f150? Things to worry about? What to maintaine?

When first cranked listen to make sure vaules aren't tapping. Make sure it shifts properly. As far as maintenance keep oil changed, change transmission fluid every 30k miles, also clean injectors at time of transmission servicing. Even though tune up required at 100k i tune mine every 30k but i do all these myself. Watch for vibration in from brakes when braking. If feel vibration then rotors need turning. My 2000 f150 got 356k miles. Only needed to replace alternator.

I have a 2006 f150 I got the trans flushed an refilled because I've seen few on the ford owners site that had problems with theirs my coil pack had mine running real bad put in a new one and it runs fine the strangest issue I've encountered is my temp gauge goes all the way to the hot side and its not running hot.i'll shut it down 5 minutes restart it and its normal for about 6miles then the same thing i'm dealing with that issue now its called a false overheat signal on fords site I see a few have the same issue could be a ground i'm told. Other then that my 4.2 l has no problems.