Truck won't start

2008 5.7 with 199,000 miles

I'm the original owner.

Started fine until yesterday.

Nothing happens.

Replaced battery.

Lights come one, blower blows.

Turn the key, lights go off for about 3-4 seconds, then back on.

Nothing happens.

Unplugged relays and plugged back in.

It came factory equipped with a Silencer, an engine kill function. But when the Silencer was not in range / dead battery in fob, the truck would at least attempt to start.

I'm on the way to O'Reilly to check battery status.

Please help.

 

Alternator maybe?

 

Battery is good. I guess it’s something else.

 

If it tries to start but can't I would think fuel pump. If it doesn't even try, maybe your kill switch or starter

 

First thing is to check if you are getting spark.

 

Starter.

 

Starter, seems to be about the range they go out on 200-215k