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Old 06-20-2010, 08:49 PM   #1
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Default Blower control switch replacement

I have a 92 Bonneville SE. It has ***** to control; fan speed, temperature, and air placement. I have replaced the blower motor. The fan will work on the first three settings on the switch, but not on the fourth or "high" setting. I also have a problem with low air flow through my vents. All vents seem to flow evenly.

I am wondering how to remove the control switch, without damaging the dash panels also. Do they just pop off?

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Old 06-21-2010, 02:01 AM   #2
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Just wondering, did you check or change the blower motor resistor? Pretty sure that car has one, should be close to the blower motor.
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Old 06-21-2010, 11:37 AM   #3
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Your air flow might be restricted because of an evaporator core being plugged. Check this out.
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Old 06-21-2010, 11:45 AM   #4
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On the manual (your version) of the climate control the high speed is controlled by a relay. Basically direct to the battery voltage.
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Old 06-21-2010, 06:25 PM   #5
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I changed the blower motor, but haven't tried the resistor. I'll have to give that a shot this weekend.
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Old 06-21-2010, 06:27 PM   #6
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Work all week....... means I'll have to try all of these this coming Saturday. Thanks to you all for the info
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Old 06-22-2010, 07:40 AM   #7
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Think relay, not resistor.
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Old 07-02-2010, 02:59 PM   #8
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THANKS BILLBOOST37 your answer was dead on. Thanks to Eric, and Kevin also. I replaced the resistor, cleaned the evaporator core too. The cool is blowing on HIGH now thanks to my last part installed..... the Relay :o) glad to have the wind blowing again.
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Old 07-02-2010, 04:44 PM   #9
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You are welcome! I'm glad you got it fixed.
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