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Hi, I just changed my vehicle(a 2003 Kia Optima) amplifier ...

Sent to Car Experts June 14 01:02 AM

Hi, I just changed my vehicle(a 2003 Kia Optima) amplifier with a new one that I bought off the shelf. The amplifier works fine but the alternator noise is much. When I put off the ignition the noise ceases, the moment I start the engine the noise starts and pitch increases as I accelerate the car. What can I do? Thanks

 

Optional Information:
2003 OPTIMA 2.0CC

Already Tried:
I have tried installing a line capacitor.Didn't work.

Customer (name blocked for privacy)
Status:  Closed   Value: $15
Answer
June 14 1:24 AM (21 minutes and 33 seconds later)
         
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DCM -- Auto Mechanic -- 96% Positive Feedback on 505 Car Accepts
18 yrs Mechanic
Reply
June 14 1:37 AM (13 minutes and 21 seconds later)
         
I earlier on tried this approach but no luck.
Customer (name blocked for privacy)
Answer
June 14 1:50 AM (13 minutes and 4 seconds later)
         
ACCEPTEDCheck Mark
Try cleaning the negative binding post of the battery if this still does not help, then try running a temporary ground wire directly from the battery, if this minimize the noice, then it's either the ground is not clean enough, or the ground connection is loose. If none of this help, there is a noise filter you can buy on electronics store, by the way, try checking the ground of the stereo unit as well.
DCM -- Auto Mechanic -- 96% Positive Feedback on 505 Car Accepts
18 yrs Mechanic
Reply
June 16 3:04 PM (2 days and 13 hours later)
         
Can you suggest a particular type of noise I can use as I have tried out what you suggested but to no avail?
Customer (name blocked for privacy)
Answer
June 16 6:03 PM (2 hours and 58 minutes and 12 seconds later)
         
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DCM -- Auto Mechanic -- 96% Positive Feedback on 505 Car Accepts
18 yrs Mechanic
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