I need help again before I get rid of this stupid thing. I have a 2008 dodge ram 1500 hemi 5.7 the past week it has been really weak to start the truck. Today it cranked very little then wouldn't. And tried everything nothing replaced the starter and still nothing with the key. Take a screw driver it will start but it is very weak. Drives fine battery is great full charge checked at advanced everything is functioning like it should got the truck home and won't start again. What could this be. Thank you in advance

 

Even though your battery tested fine, it could still be the culprit.

 

Did they load test the battery? Or just static voltmeter?

 

Try reading battery voltage during start. Battery should be at least 12.6V static. During start the voltage should drop sharply, but no lower than 10v. This check will show if starter is calling for power.
Then try starting a second time, only with multimeter ground read off of the engine during start. This check will show if your starter is getting a good ground.