ENGINE HESITATE

When I Push The Button It Kind Of Feels Like It's About To Shut Off Like A Hesitation. I Was Told By Several People Could Be A Battery...

I Replaced A New Timing Chain With Gears, A Fuel Pump, The Distributor, Oil Change, Spark Plugs And Wires, Idle Position Sensor...

When You Push The Gas Pedal The Car Stumbles. It's Like It Shuts Off And Starts Back Up. Changed Crank Sensor, Icm, Maf, New Plugs...

Our Suv Has Been Having These Hesitations When Starting For The First Time In The Morning Or After It Has Sat For A Few Hours.