Hard start

I have a 2013 double cab Tacoma. If my truck sits for more than 5 to 6 hours it will crank but not start. I have had an entire wire harness changed, battery replaced an alternator change and still have the problem. It has been at he Toyota dealership three times. I almost forgot a fuel pump changed 3x’s. Can somebody help me out?

 

So it cranks fine (as in the engine spins over with the starter) but it doesn't start but they replaced the alternator?

Do you have the 4.0L V6 or 2.7L I4

Does it set any codes when it doesn't start?
Does your security light next to the clock flash with the key on when it doesn't start?
What do you do or what has been done to get it started when it doesn't start?

 

4.0L V6/ there are no codes. There are no security lights. Then after continuous cranking it starts.

 

Welcome to TW! Hope you get it figured out.

 

How do you get it to finally start?

 

I'd want to have a fuel pressure gauge on it when it acts up and see what fuel pressure is doing.

Were the fuel pumps OEM?
Does it run fine otherwise?