SOMETIMES THE OLE STARTER GETS HUNG UP IN THE FLYWHEEL....STARTER MAY BE BAD--TEETH MAY BE BAD---BATTERY MIGHT BE LOW OR BAD

BUT WITHOUT BEING THERE---I'M GUESSING YOUR STARTER RELAY IS THE "THUMP"

SO BEFORE YOU GO CRAZY WITH THE STARTER......THIS IS USUALLY THE WHOLE PROBLEM......YOU MUST GET IN THERE!!!...SEE MY LINK

https://www.2carpros.com/questions/1996-chevrolet-tahoe-wont-start-sounds-dead-battery-jumpbox-get-same-reults

LET ME KNOW IF THIS HELPED YOU

BEFORE YOU RUSH OUT AND BUY ANYTHING AT ALL....COMMO WITH ME, I "MAY" BE ABLE TO SHOW YOU HOW TO SAVE A GOOD CHUNK!

THE MEDIC