2007 Chevy Avalanche 5.3L Flex Fuel
When truck sits for a day, 1st attempt to start the engine barely turns over
then makes that dead battery clicking noise and stops. Turn key to off
position and then try again, engine turns over as normaly would and starts
right up. Battery has been replaced twice in past month. Everything from
firewall to front bumper has been replaced with OEM parts including engine.
What causes this and what needs replaced?