will bad batteries cause a hot no start?

[PCL]

I ran my truck for 20 minutes to home depot the truck started fine before I left. Went in the store for half hour went to start and all it did was crank and not start. Had it towed home and still just cranked and I thought it turned over fine. I tried later when it cooled off but still didn't start and the batteries died so I charged them. Next morning I tried to start it and it started like usual. I just installed a cts and not running I only have 11.6V so I think bad batteries what do you guys think? Will it still crank good and not start?

[lenzhotrod]

You need to charge and test your batteries first. Search "hard hot restart" for the 6.0 and you will find plenty. It too is a common problem.

[2006PSDSD]

HPO leak is my first guess. Check your FICM too, you may have smoked it while cranking the truck for that long and running the batteries down

[PCL]

truck seems normal now after I charged the batteries and the cts numbers look good.

[Lilpooh]

Lots of things could cause a no start condition. Weak batteries is one of them. Here is some reading material for you.

Troubleshooting a No-Start condition