slight ticking noise when running,
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=126971
Printed Date: May 12, 2025 at 8:49 PM
Topic: slight ticking noise when running,
Posted By: klw1452
Subject: slight ticking noise when running,
Date Posted: April 15, 2011 at 9:03 PM
My new system has developed a very slight ticking noise. It's not a whine, it sounds like a taser, but much quiter. It's mostly from the rear speakers, but is present in the fronts to a lesser extent. And of course, I can only hear it while the motor is running. It's quiet enough it doesn't affect the sound, I can just hear it if I turn my head right.
I'm pretty sure it is ground loop noise... However, I don't believe this noise wasn't there before the amp went in.
Should I add a ground loop isolator or try simply grounding the HU case to body?
System...
Aiwa CDC-X217
Pioneer 6.5's off HU
Alpine MRP-M500
MTX subs
8 gauge power to amp along driver side with 8 gauge ground to clean body bolt
2 x 8 gauge battery ground cables
6 gauge body to engine
Shielded home theater RCA's running along passenger side
Replies:
Posted By: i am an idiot
Date Posted: April 15, 2011 at 10:26 PM
Possible bad spark plug wire.
Posted By: klw1452
Date Posted: April 15, 2011 at 10:58 PM
Good idea. I'll check them tomorrow.
Anyone else have an idea?
Posted By: i am an idiot
Date Posted: April 15, 2011 at 11:32 PM
Easiest way to check is to open the hood in the black of night and look for sparks.
Posted By: klw1452
Date Posted: April 15, 2011 at 11:51 PM
The old wires that were on it when I bought the car went bad down in the tubes where you can't see anything. I'll inspect them real close in the morning.
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