joker_01z28

iTrader: (14)

figured this would be the more appropriate forum.
Fist yes I searched cant find what im looking for/
I recently did a H/C/I swap on my 01 SS. I was careful to not break anything ir pinch any wires. start the car (brand new battery) idles but the gauge is about at 12. go drive it a bit now its about 10ish I stop to get gas fill up and click its dead. get a jump barely starts stumbling and sputters but I limp it home, fast forward to yesterday I go buy a new alternator start it up and its at 12 yet again, let is idle for a while never goes above 12. Go out this morning start it up volts are about 9 let it idle about 10 minutes hoping it goes up, nope so turn the car of wait 5 seconds try and start and click wont start Help please I checked the fuses in the car they're good brand new batt and new alt

chopperb

iTrader: (1)

Check the output at the alternator with a vohm meter. If you have around 13 or so volts trace the read and blue from the alternator back to the pcm. You have a break in the line somewhere.

RPM WS6

iTrader: (3)

Alternator may not be receiving a signal from the exciter wire. I agree, there is likely a break somewhere if you've now seen this with two different alternators.

joker_01z28

iTrader: (14)

what and where is the exciter wire?

chopperb

iTrader: (1)

Attached is the wiring diagram for the charging system, The exciter wire is the red one going from the alternator to the pcm.

42273

iTrader: (3)

if that wire checks good i would test that battery when it is hot the lead plates can swell and act like a short to ground good luck.

joker_01z28

iTrader: (14)

thank yall for the help, I had the batter tested today and it is in perfect working order

joker_01z28

iTrader: (14)

Is there something that connects to the back of the alternator? Looking again there is a square 4 pin connector on the car, a broken red wire, and and the alt there is a oval 4 pin female end. so what am I looking for?

RPM WS6

iTrader: (3)

That broken red wire is the exciter wire. Sounds like this is in fact your issue. People often end up accidently ripping that wire out during alternator swaps.

You will need to fix this to get the alternator to charge again. I can't recall off the top of my head which pin that wire needs to be attached to though.

joker_01z28

iTrader: (14)

Hoping its just that, I found the connector and wire on the bay im going to get

Homeless2bNY

iTrader: (2)

hey, did you check all ur fuses?

fuse number 25

joker_01z28

iTrader: (14)

yeah checked all fuses inside and under hood, all grounds, and pcm, pretty certain as rpm said my broken red exciter wire is probably the sombish