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Fiesta stereo popping, feedeback noise
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Bob Endeavor
New User
Apr 27, 2015, 3:53 PM
Post #1 of 9
(35923 views)
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Fiesta stereo popping, feedeback noise
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2011 Ford Fiesta with premium 6 speaker stereo, sound of loud popping, feed back type squealing noise. Even with the car off, open a door and loud noise starts through the stereo speakers. Only way to stop is to turn off ignition. Unless of course, the car is not on...then have to start and then stop ignition. This problem developed over a 3 month period. Bought the car from Carmax about 6 month ago. Have pulled the radio fuse as temporary solution. Any advise? Thanks
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Discretesignals
Ultimate Carjunky
/ Moderator
Apr 28, 2015, 4:01 PM
Post #2 of 9
(35901 views)
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Re: Fiesta stereo popping, feedeback noise
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Does it do this popping noise no matter what station the radio is set to? Does it do this noise out all speakers? Does the noise stop or change when you adjust the ac blow speed or mode doors?
The radio could be picking up interference from an electrical component that is generating EMI. The trick is finding out which one and why.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Apr 28, 2015, 4:06 PM)
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Bob Endeavor
New User
Apr 28, 2015, 4:32 PM
Post #3 of 9
(35892 views)
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Re: Fiesta stereo popping, feedeback noise
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The car ignition does not even have to be on when this occurs. I believe all speakers are involved. It will occur while being driven, must restart to clear.
The radio can not be heard when this occurs, therefore I would assume it happen on all channels.
When it occurs prior to ignition, must start (not just turn on) to clear the noise.
The noise can be described as popping, squealing, screeching, and only stops after activating the starter.
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Discretesignals
Ultimate Carjunky
/ Moderator
Apr 28, 2015, 4:37 PM
Post #4 of 9
(35890 views)
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Re: Fiesta stereo popping, feedeback noise
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Does this have SYNC?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Bob Endeavor
New User
Apr 28, 2015, 4:42 PM
Post #5 of 9
(35887 views)
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Re: Fiesta stereo popping, feedeback noise
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Yes it has SYNC. No phone is "hooked up" to it.
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Discretesignals
Ultimate Carjunky
/ Moderator
Apr 28, 2015, 4:48 PM
Post #6 of 9
(35882 views)
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Re: Fiesta stereo popping, feedeback noise
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That year hasn't really trickled down to the independent level as of yet. I've read others that had a similar problem and it ending up being the ACM (audio control module). The only issue is that that thing cost around $600. You would probably need to take it to a dealer to have it diagnosed to be positive that is the culprit. Seems when it comes to factory audio/nav equipment, they want your soul and next born.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Bob Endeavor
New User
Apr 28, 2015, 4:59 PM
Post #7 of 9
(35880 views)
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Re: Fiesta stereo popping, feedeback noise
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I found similar information on the European models. Even found an "update" however it would not load on this car.
Thanks for your efforts!
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Basham50
New User
Mar 14, 2016, 4:56 AM
Post #8 of 9
(35386 views)
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Re: Fiesta stereo popping, feedeback noise
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I've had similar issues. I made a YouTube video recently. Hope this helps. https://youtu.be/XabNfMNggNM
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Hammer Time
Ultimate Carjunky
/ Moderator
Mar 14, 2016, 5:04 AM
Post #9 of 9
(35383 views)
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Re: Fiesta stereo popping, feedeback noise
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This thread is a year old. Closed now
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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