What could be the sound ? There are no engine codes.
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2006 Nissan Altima Question: I replaced my alternator. After replacing the alternator i still hear a sound>
Answer #1Carmasters Automotive LLC (119 Answers) , Virginia Beach, VA - (757) 793-2234carmaster July 08, 2014, 16:38Journeyman
Many newer design alternators have clutches in them and it is normal to hear a little noise when first shutting off engine and alternator is coasting down, otherwise you may have something else making a similar noise or have a defective replacement alternator. Call Roy at 757-456-0722 if you would like a free loaner vehicle while we check and correct it for you.