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  • December 12, 2018, 12:19:00 AM

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Author Topic: alternator whine  (Read 1220 times)

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Offline demonicdragon

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alternator whine
« on: July 17, 2011, 11:08:04 AM »
This isnt eagle related but for my Mitsubishi. I have a bad alternator whine in my speakers. I have a aftermarket head unit. Im trying to fix this annoyance. Im thinking of grounding the unit to the frame also try those noise reducers. Anybody got any background in this

Offline mudkicker715

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Re: alternator whine
« Reply #1 on: July 17, 2011, 03:32:28 PM »
My eagle recently had a whine after the amp I put in due to a pinched grounded out speaker wire. Could be somthing like that maybe?



Manitowoc WI

Offline JayRamb

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Re: alternator whine
« Reply #2 on: July 17, 2011, 04:18:57 PM »
This isnt eagle related but for my Mitsubishi. I have a bad alternator whine in my speakers. I have a aftermarket head unit. Im trying to fix this annoyance. Im thinking of grounding the unit to the frame also try those noise reducers. Anybody got any background in this

Hook up a Radio Frequency Interference Capacitor.
Ignition systems produce sparks (and therefore radio frequency interference) at the coil where battery voltage is converted into high voltage that can jump across the gap in a spark plug, at the distributor where the high voltage is channeled to the proper plug, and at the spark plug itself where the spark ignites the controlled burning of the gasoline/air fuel mixture. Diesel engines compress fuel to ignite it in a process that produces negligible "noise."

The noise generated by a gasoline engine ignition system comes primarily from the high-voltage side of the circuit.

 It's very effective in suppressing engine "noise," and it doesn't affect engine performance.
 
Jayson H.
Best HWY Mileage of 87 Eagle:  26.2 MPG

Believer in AMSOIL & Seafoam
1987 Garnet Red Eagle Wagon: 70,500 miles
1967 Rambler Rebel 4 Door 290 V8 (original family car) Marina Aqua 142K miles
1985 Eagle Wagon in Autumn Brown 74,800 miles as my daily driver
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Offline demonicdragon

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Re: alternator whine
« Reply #3 on: July 18, 2011, 10:04:38 PM »
ok thanks ill look into it. i gotta get rid of it

Offline amcinstaller

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Re: alternator whine
« Reply #4 on: July 18, 2011, 10:19:43 PM »
alternator whine in a stereo is caused by crap grounds. fix them all. been doing this 7 years. grounds, grounds, grounds. :occasion14:
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