Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

Output wire buzzing and vibrating, help please!

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Old 09-12-2003, 08:02 PM
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Car: 1991 Birdy
Engine: 3.1 v6
Transmission: auto
Output wire buzzing and vibrating, help please!

Hey guys. A little background for you. I just bougth a 91 firebird with a v6 engine. I talked to the mechanic who had worked on the car and asked him about the A/C and he said theres a leak in the compressor.

Well, when I turn the A/C on, I noticed that the output wire from the rear of the alternator makes a periodical buzz and vibrates. Im not a big car expert but this sound doesn't sound normal at all. It only happens when the A/C is on.

The nut that holds the wire is pretty tight and the alternator is brand new.

Thanks for helping
Old 09-17-2003, 05:48 AM
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Car: '87 IROC Z-28
Engine: Horse **** 305 for now
Transmission: 700-R4
Axle/Gears: 3.73 posi
The WIRE is buzzing?????????
That, I think, is physically impossible.
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