Corroded battery cables the ends and sometimes under the insulation battery acid leaks down the cables.Have you made sure the battery cables are clean and tight?

Answered by saturntech9 (expert)
23,388 answers provided

These are new cables

Response from hwb120240
1 question asked

DAT'S MY #1 ANSWER TOO

SEE MY LINK

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

I'D RULE THAT STUFF IN MY LINK OUT COMPLETELY BEFORE TRYING OTHER STUFF

OTHER THINGS I CAN THINK OF IS

..........CABLE GAUGE IS TOO SMALL

..........INCORRECT STARTER

..........NEW BAD STARTER

.........STARTER TEETH TOO CLOSE TO FLYWHEEL....SHIMMING MAY HELP http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/PartSearchCmd?storeId=10151&catalogId=10051&pageId=partTypeList&suggestion=&actionSrc=Form&langId=-1&searchTerm=starter+shim&vehicleIdSearch=20777&searchedFrom=header

..........MECHANICAL ISSUES---WATER IN CYLINDER--ETC

KEEP US POSTED

THE MEDIC

Answered by CJ MEDEVAC (expert)
6,884 answers provided

Also see if the engine turns over freely by hand.

Answered by saturntech9 (expert)
23,388 answers provided