wow..extremely bad noise when brake applied or in park.? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 09-04-2007, 12:58 PM   #1
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Default wow..extremely bad noise when brake applied or in park.?

i started to get a bad noise where my subs just throw a constant solid bass noise when ever i step on the brake or when the car is parked.. when i step on the gas the noise goes away completely..? i checked and cleaned all grounds and reassured all power connections were stable and tight.. can this be from me needind to ground something else on the car.. all my wiring is 0 zero gauge oxygen free stinger pro insulated wire... and 4 gauge wiring for all my mids and highs...
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Old 09-06-2007, 10:59 AM   #2
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cant anyone answer this.. noone has any idea'*.. thanks
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Old 09-07-2007, 01:56 PM   #3
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Sounds like you have a ground loop.

Do you have an amp powering you mids or only an amp for your subs ?

Either way I would try eliminating the ground at the HU.
Make your own ground so that you are not using the ground in the factory harness.

See if that fixes your problem if not, then try relocating the amplifer ground.

I've heard of this before but never witnessed it first hand. I've heard this is caused by the manufactuer using a common ground point for the brake and the HU. The HU picks up the noise and passes it on.

Good luck,
Dutch
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Old 09-07-2007, 10:57 PM   #4
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yes i have two amps.. mids and bass... i will try what you said about changing the radio ground to my own.. because it does come from the brake. only when its applied i get noise...
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