My truck stopped accelerating while driving and now won’t turn on.

I was driving and my truck stopped accelerating. Now, it won’t turn on. Battery is good. Anyone else having the same issue with the 2014?

 

Fuel pump died?

 

Gonna need about 400% more information. Check engine light? If so what codes? Does the engine crank and just not fire? Does the engine not crank?

 

Out of gas?

 

Until more info, lots more, comes in we'll start with: easy.

 

Super clogged air filter but fuel delivery is a better guess IMO

 

Check the alternator

 

Charged the battery for a while and it turned on. Alternator is fine. No codes, but said battery life was 50%. So I bought a brand new battery. Ran good for 2 days, and then did the same thing. I’m at a loss

 

Alternator is not fine or cables are bad and it’s not recharging the battery.

 

Alternator isn’t fine.

 

How do you know the alternator is fine? Have you had it tested?

 

I had a mechanic look at it. He’s starting to think it’s a bad relay. Has anyone had that problem?

 

This would not cause your truck to turn off while driving. A bad relay can cause a parasitic drain leaving you with a constant dead battery. However, that would prevent your truck from starting. I’m 99% sure there isn’t a relay that tells your alternator to start sending juice to the battery.

You have a bad alternator. Or possibly bad connection/cables.