ive read so many different alternator troubleshooting guides that im about to puke. i dont think many take into account new cars that dont necessarily follow the old ways. my question is this, could a car stop running in the middle of operation and it not be tied to a bad alternator? of course please assume that everything else (engine wise) is sound...spark, compression, ect... im mainly concerned with the options being either a bad battery or bad alternator. Arent these new cars designed to sense a bad battery and for the alternator to quit charging the battery? so it doesnt damage the alternator? and also, does the cars computer need some type of constant voltage/ amperage from the battery, and once this falls below the required limit, the car can die while running down the road? Its a 2005 Chevy Trailblazer. its a friends, and im trying to convince him that these symptoms dont always mean a bad alternator. but i dont know enough details. the belt prolly needs changing too, i always thought if you can turn the alternator pully by hand, then the belt is too loose, and the alternator might not be putting out the correct output. can anyone explode this and elaborate? thanks.
- posted
16 years ago