2008 CHEVY IMPALA KNOCKING NOISE

  • Tiny
  • Louisiana
  • 2008 CHEVROLET IMPALA

Air Conditioning problem
2008 Chevy Impala 6 cyl Four Wheel Drive Automatic 60,000 miles

When you click to open the care and turn on and off the air conditioning it make a knocking noise it only last a few minutes then it stops, but whenever you turn the air conditioning on and off it will start the knocking sound again.

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Friday, November 5th, 2010 AT 3:28 PM

1 Reply

  • Tiny
  • Service Writer
  • EXPERT
  • 9,252 POSTS

Sounds like the blower motor fan is rubbing on the cowl around it. Sounds like it is in the left dash area?

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Friday, November 5th, 2010 AT 6:44 PM

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