Alternator Problem
#1
Thread Starter
Alternator Problem
Battery would not crank the car, took it out , charged it, took to AZ and they said it was OK.
put battery in and fired up the car,11.5 volts at the battery not good.
checked fuse in under hood panel, it was good.
pulled alternator, took to AZ, no good.
called Napleton,351$, only two in the country,one on each coast.
took alternator apart, checked diode pack, it was fine.
started to remove brush holder and it looked like one brush was not touching the commutator, tapped it with a screw drive and heard a Ting, it's touching now.
took holder apart and cleaned it.
assembled , took to Advanced Auto for test, putting out 95 amps at 15 volts.
took to Az for test, Good.
put back in car, fired it up, 14.5 volts across battery terminals with engine runningW0000Hooo
Stupid Brushes were hung up!!!
Just a heads up if you have alternator trouble.
put battery in and fired up the car,11.5 volts at the battery not good.
checked fuse in under hood panel, it was good.
pulled alternator, took to AZ, no good.
called Napleton,351$, only two in the country,one on each coast.
took alternator apart, checked diode pack, it was fine.
started to remove brush holder and it looked like one brush was not touching the commutator, tapped it with a screw drive and heard a Ting, it's touching now.
took holder apart and cleaned it.
assembled , took to Advanced Auto for test, putting out 95 amps at 15 volts.
took to Az for test, Good.
put back in car, fired it up, 14.5 volts across battery terminals with engine runningW0000Hooo
Stupid Brushes were hung up!!!
Just a heads up if you have alternator trouble.
#4
Thread Starter
Originally Posted by Su2uKa,Feb 21 2009, 01:08 PM
So you won't be stealing the one from my S then?!?
Time well spent: money saved & all the more satisfying for fixing it yourself too - you deserve a beer
Time well spent: money saved & all the more satisfying for fixing it yourself too - you deserve a beer
Graham I think your alternator is safe, I think they changed the part in 05 and urs will not work on mine(03)
Another thing I learned , anytime you disconnect the battery you need to teach the engine to idle again, see page 11-127 in factory manual
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