Why won’t my truck start?

What is your question?

It’s not the battery. It would act like it was trying to start but wouldn’t. All things have full power inside when ignition is on. Tried jumping but still didn’t start. Took the battery to get tested…said it was fine. Cleaned everything, re-connected and it started back up. Let it run for 20 minutes. Turned off, tried starting and same thing as before. 80k miles.

What makes this problem better or worse?

Disconnecting battery and reconnecting it

How long has your 2016 Chevrolet Silverado 1500 had this problem?

1x