2006 Pontiac Torrent Base 6 Cyl 3.40L
Could a bad battery cause alternator failure?
'06 Pontiac Torrent AWD
A battery with a short in it will cause the alternator to run at full output for extended periods of time, if not continuously - and they are not built to do this. Alternators the world over are built to supply an initial high current, tapering back as the current used to start the vehicle is replenished. Constant running at full output simply overheats them and the rectifiers fail.