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Old 11-05-2007
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heater fan

my heater fan stopped working on my 97. It works on the highest setting but not on the other 2 or 3 speeds whatever it is. any ideas of what would cause this? the fan is still good obviously if it works on high but why not at any other speed?
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Old 11-05-2007
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This usually means that the blower resistor block has failed. The resistor is bypassed in the high speed position. A new one costs about $12~20. Also check the plug connector at the resistor block for corrosion.
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Old 11-05-2007
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where abouts is this resistor block located?
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Old 11-05-2007
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Look next to the blower motor on the HVAC plenum (firewall area). You should see an electrical connector with 4 wires plugged onto the resistor block which is held into the plenum by 2 screws.

The blower resistor block looks something like this generic picture. You will probably find that the coils are broken.

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Old 11-05-2007
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awesome i'll check that out tomorrow. thanks for the help
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