My auto is a 2003 Chev. Trailblazer ext. two wheel drive. when i accelerate from a stop it sound like my transmission whines before shifting up. At this times rpm is appx 2.000. This does not happens every time and runs well after shifting to 2nd or 3rd gear. It sounds like the fan clutch could be the culprit or even a tensioner. Any thoughts?
Optional Information:
2003
Chevrolet Trailblazer SUV Straight 6
Already Tried:
Nothing