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2002 Trailblazer clicking from heater when vehicle starts
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Herb J
New User
Mar 24, 2007, 6:15 PM
Post #1 of 2
(1671 views)
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2002 Trailblazer clicking from heater when vehicle starts
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Have a return of a loud clicking for a few seconds when SUV starts. Coming from the heater area in the dash. Previous warranty work on this problem repaired "something" but I wasn't advised what exactly. Now that warranty is past, it's out of my pocket and the previous work only lasted for a few thousand miles. Could this be the Heater Blend Door Actuator? And where is it and how do you get to it? The previous work took a dealer close to 4 hours.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Mar 25, 2007, 11:00 AM
Post #2 of 2
(1664 views)
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Re: 2002 Trailblazer clicking from heater when vehicle starts
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Did the prior work explain what they did?
Could be a blend door actuator. Try shutting the car off in defrost mode and see if that changes the noise or eliminates it. It may be telling of a door or actuator.
Do all the funtions of the controls at least still work as expected??
Dash work can take a long time. The four hours could be legit, T
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