What is your question?
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What is your question?
No power loss while running, or driving but it makes this high pitched sound near the front of the motor.
What makes this problem better or worse?
No that doesn’t seem to matter
How long has your 2002 Chevrolet Silverado 1500 had this problem?
4days

1 Reply
Prime suspect is failing alternator bearing - alternator replacement is only fix. Recommend *hands-on* testing - automotive stethoscope very helpful - inexpensive to purchase or can rent at parts store.. IF unfamiliar with automobile troubleshooting / repair - seek professional assistance.