Today I was out driving,stopped at the store, when I went to leave started up blazer and pushed on the gas pedal and the blazer would not move. The panel lit up but couldn't see quick enough to see exactly what it said. Far as I could see was no pwer = something else.Was straned for 1 hour and then the ride stared working but was sluggush all the way home.Battery shows good. Does anyone have any idea what is possibly wrong. Thanks

Have a computer scan done to determine if there are any codes in the computer. You could have a bad throttle position sensor.