gedmeyer
Well-known member
I thought I had solved this problem a couple months ago, but apparently not "Bubba Alternator Wiring". In any case, the vette died on the road two nights ago with a dead battery. I could jump start it, but it would always die out after the battery lost charge. So the Alternator is not charging the system.
I went back today and fixed the wires so the alternator is hooked up exactly as called out in the Service Manual. All red wires at the alternator read the voltage of the battery (measured at the posts). With the car off, the brown wire reads 0. The brown wire reads 11.8V with the car running and with the ign on and the engine not running.
The generator warning lamp is illuminated. HOWEVER, when I rev the engine past 3500 rpm, the voltage gauge jumps to a little over 14V and the warning lamp goes out. But, a few seconds after the RPMS drop, the voltage drops back down to being low and the light comes back on.
I had Advance Auto Parts test the alternator this morning and they said it tested good. I kinda thought my symptoms meant a bad regulator, but they say the alt. is good. Any suggestions?
-gedmeyer
I went back today and fixed the wires so the alternator is hooked up exactly as called out in the Service Manual. All red wires at the alternator read the voltage of the battery (measured at the posts). With the car off, the brown wire reads 0. The brown wire reads 11.8V with the car running and with the ign on and the engine not running.
The generator warning lamp is illuminated. HOWEVER, when I rev the engine past 3500 rpm, the voltage gauge jumps to a little over 14V and the warning lamp goes out. But, a few seconds after the RPMS drop, the voltage drops back down to being low and the light comes back on.
I had Advance Auto Parts test the alternator this morning and they said it tested good. I kinda thought my symptoms meant a bad regulator, but they say the alt. is good. Any suggestions?
-gedmeyer