Has anyone else noticed a really high-pitched click when using the left turn signal? It's one of those sounds in the upper frequencies that some people can't hear. I can't figure out what causes it to happen, but it is reproducible. It's also only when using the left turn signal - the sounds never occurs when the right signal is on.

My friend heard it too when he was in my car, so I know I'm not crazy! It sounds like an electrical whine that only sounds when the left signal is on.

 

maybe your flasher is blown and causing it to signal faster and not sound right!

 

Hmm... nope. I wish it was that easy! It blinks at the same speed, has the normal clicking sound, but now there's a secondary noise at a much higher frequency. By frequency, I mean 10khz versus 1khz (higher pitched), not speed.

 

is it constant or does the noise pulsate?

Just noticed you have different HIDS. Did this happen before or after your install?

 

Pulsates. Timing matches the turn signal exactly. I haven't noticed it even after the install of the HIDs until recently. I don't think it's related because it happens even during the daytime when the HIDs are not on. Also, it only happens on the left blinker, not the right.