Question about Chevrolet Impala

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I have a 2003 Chevy Impala LS with 127K miles. The transmission fluid was exchanged at about 100K miles. I have been using Jiffy Lube for the last four years for routine maintenance. This of course includes oil changes, filter changes, tire rotations and the like. I have noticed of late that after first starting the car and engaging the transmission that I hear I high pitched whine on acceleration. The whine dissipates as the engine heats. The whine is not nearly so pronounced when the car is in neutral and I rev the engine. Thoughts, suggestions to troubleshoot.

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  • huskerhokie
    huskerhokie Sep 13, 2010

    How much play should there be in the belt? While the engine was warm, I pushed down upon the belt (the one that includes the alternator) and there was about 2 inches of slack.

    Could the alternator make such a whine as well? I have had infrequent experiences where the battery discharge light comes on and various other alarms go off while in travel. They go away and all appears normal. I only thought of these now since recognizing the belt drives the alternator.

    I had had a charging and discharge problem many years ago with a loose belt on the alternator on a VW rabbit.



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Hi! It can be the belt. YOu may try checking the fan belt for if it's a little loose it can create a whining sound. HOpe this helps and thank you for using FixYa!

Posted on Sep 09, 2010

  • dj_relly999
    dj_relly999 Sep 13, 2010

    Yes, a loose belt can cause this.



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