Question about 2005 Chevrolet Trailblazer Ext

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When i step on gas it makes a whining sound. also on the fan it doesn't work on the 5 setting.

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Hello. The whining sound is most likely solved by replacing the serpentine belt under the hood. The 5 setting problem is occurring because the electronics that control that speed are either dirty or worn out. If you can live with not having the 5 setting fine, if not The entire setting unit will have to be replaced.

Posted on Jul 24, 2009

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