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2002 Trailblazer Ratchet Noise From Heater Area


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Herb J
New User

Mar 24, 2007, 12:41 PM

Post #1 of 1 (2164 views)
2002 Trailblazer Ratchet Noise From Heater Area Sign In

I had a click noise from my heater/AC unit under the dash when you start the vehicle. Dealer said they knew exactly what it was and replaced some component that took almost 4 hours to complete under warranty. I was told the problem requires mostly labor. Noise came back in about 2,000 miles and just over warranty. I think it's got something to do with the Heater Blend Door Actuator but how do you find it and get to it?






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