Alternator Question

[Green993]

I'm about to re-start my engine after a rebuild (95 993). I re-connected the battery and noticed the alternator light on the dash came on (without key in ignition). What does this mean?

[HawgRyder]

To me it means the alt is grounding the sense wire.
Could be the alt itself...or the wiring going to it...but in any case..it is not correct.
Try disconnecting the alt wires...one at a time to see if the light goes out.
It could still be inside the alt...perhaps the diodes have corroded and shorted....or maybe the slip rings.
Bob

[Green993]

This is strange. Prior to the rebuild I put in a new voltage regulator and the alternator worked fine. Maybe there is a short in the wiring harness.

[Green993]

Just an update, FWIW. Took out the alternator. Inspected the wiring harness and found all the insulation had cracked off all 3 wires near the end. Electrical taped the wires, re-installed and Alternator light went out.

Now, once the car is running I will get the Wiring Harness recall performed at P dealer.

[iiXii]

thanks for your update