1999 Oldsmobile Alero Problems with Blower Motor

1999 OLDSMOBILE ALERO
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BIGSTAFF00
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Heater problem
1999 Oldsmobile Alero 4 cyl Two Wheel Drive Automatic

I replaced the blower motor, resistor, fuses and relay for the heater in this car. After all this, it will only run on high speed and not on the other 5 lower settings. What else could be wrong?
Dec 12, 2009 at 4:41 PM
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RASMATAZ
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Check and test the blower control switch,also double check the resistor
Dec 12, 2009 at 4:50 PM
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RASMATAZ
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  • 75,992 POSTS
I want you to check for power at the resistor dark blue wire -turn the heater on and get back with me.
Dec 12, 2009 at 5:18 PM
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