SPANISHVETTS
Well-known member
- Joined
- Nov 5, 2002
- Messages
- 1,143
- Location
- El puerto de Santa Maria Spain
- Corvette
- before 60,63&82 now 90 383 Stroker & 91 ZR1-Sold
The alternator went out again, no surprise. This time a pair of diodes shorted out and sent 5VAC down the main buss. This blew the ¨LED¨ fuse and several panel lights including a few in the Bose and caused a hi-pitched alternator whine at any speed in the speakers.
I replaced the burnt-out lamps which involved removing the radio and opening it up. Now with a new Alternator in place I get alternator whine through the radio up to 2000RPM at which point it goes away.
I have swapped the alternator with one from an F body, i.e., put his in mine and mine in his. I still get whine he gets none.
I have followed all of my own advice that seems to work for others, checked and cleaned all of the grounds from the alternator, engine, chassis, dash, etc., placed capacitors across the alternator, removed cleaned and refit all plugs, replaced the Bose amp relays and I still get the whine up to 2000RPM.
If I remove the small plug from the alternator, (turn the Alt off), no whine.
The whine is not amplified; it is the same level regardless of volume setting.
Any suggestions before I start ripping stuff out piece at a time?
;help
Thanks.
By the way I bought the Iceberg Alternator kit that I was talking about last December. As soon as I get rid of this whine I will rebuild the old CS-130 with the Iceberg parts and post the results and some photos.
I replaced the burnt-out lamps which involved removing the radio and opening it up. Now with a new Alternator in place I get alternator whine through the radio up to 2000RPM at which point it goes away.
I have swapped the alternator with one from an F body, i.e., put his in mine and mine in his. I still get whine he gets none.
I have followed all of my own advice that seems to work for others, checked and cleaned all of the grounds from the alternator, engine, chassis, dash, etc., placed capacitors across the alternator, removed cleaned and refit all plugs, replaced the Bose amp relays and I still get the whine up to 2000RPM.
If I remove the small plug from the alternator, (turn the Alt off), no whine.
The whine is not amplified; it is the same level regardless of volume setting.
Any suggestions before I start ripping stuff out piece at a time?
;help
Thanks.
By the way I bought the Iceberg Alternator kit that I was talking about last December. As soon as I get rid of this whine I will rebuild the old CS-130 with the Iceberg parts and post the results and some photos.
