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Old 09-29-2018, 01:39 AM
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2001 catera.. turn on heat and have a buzzing sound but nothing is coming out. Trying to figure out just where to begin. My clock is also flickering.

thanks
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Old 09-29-2018, 01:45 AM
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Originally Posted by r0ckstar87 View Post
2001 catera.. turn on heat and have a buzzing sound but nothing is coming out. Trying to figure out just where to begin. My clock is also flickering.

thanks
"Buzzing" like motor that is trying to spin but can't? . . . or "buzzing" like the motor is spinning but no fan is attached?
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Old 09-29-2018, 09:30 PM
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Check the blower motor resistor/module. Then check the blower motor.
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Old 09-30-2018, 01:22 AM
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Disconnect harness to blower motor....check contacts in harness and in blower motor, that contacts are clean tight and not burnt/melted.....then attach a test light to the harness......as you turn the blower switch from lo to hi, the light should get progressively brighter.....

Is this auto temp or manual?
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