intermittent starting problem

I have a 2011 Tacoma with 127k on it Saturday I decided to try and figure out why the ac outlet in the bed is no longer worked,anyway I had my wife press the inverter button on the dash 8-10 times while I listened to figure out which relay it was under the hood. About an hour later my truck would crank but not start finally after about 30 minutes it cranked up.I drove it on and off all day Sunday and it drove fine went to run to the store last night and it wouldn't start 15 minutes later cranked right up.any ideas

 

Would check battery and Alt
Run down to parts store and test both

 

See if the security light next to the clock is flashing with the key on when it won't start.

 

This happens to me whenever it is hot out and I park in the sun (90F+). Leaving the windows open a bit and letting the ignition assembly cool down solves it.

 

On mine, a failing clutch pedal switch was causing an intermittent no start. Stuck in a bypass wire, no more stomp to start.

Next I had to replace the starter solenoid contacts, problem solved, fires up every time now.

 

Oops, you mentioned crank but no start. So my previous post is no help.

 

How's the condition of the battery terminals?