General Maintenance & Repairs - recharging isssue




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stevensLS1
08-18-2007, 12:38 PM
ok so here's the deal i just replaced my alternator well my dumbass didnt unhook the battery and arced the alternator on the crank pulley. well exchanged the alternator and got a friends battery now the car isnt charging all the way up to 13 its sitting at the 1/4 mark b/t the 9-13. is there a possible blown fuse or anything? please please help me guys


Manic Mechanic
08-18-2007, 06:18 PM
This is remedial performance tech. There is no fuse between the alternator and battery or alternator and PCM. Did you arch the new alternator or your old one? Old = ohm (measure the condituity) the alternator output wire at the battery positive wire end. It should be a good low ohm circuit, if not it's burned open. New alternator arched = take it back and try again with the battery disconnected. If none of this makes sence to you then take it to a mechanic.

Vernon

GMTECH4
08-18-2007, 06:47 PM
use a multi meter set on volts. hold neg. lead on pos post on battery and other on the back of alt. it should read 0 or very close to it. if it reads battery voltage than then there is open or high resistence in that wire. u also need to check the L-terminal on the alt. for voltage. if none of this makes sense just start the car and put a screw driver on back of the alt and see if there a magnatic field there. if so the alt is charging.


stevensLS1
08-18-2007, 07:15 PM
the new alternator was not arced. i took the battery off. i will try what yall said. the reason i posted in here b.c i was getting no reponse and was hoping for something here.

Patrick G
08-21-2007, 11:19 AM
Moved from Advanced Tech section.