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Ask Don 'Mo Lurch' Your Own Que...
Don 'Mo Lurch'
Don 'Mo Lurch', Saturn Mechanic
Category: Saturn
Satisfied Customers: 20612
Experience:  GM, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.
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The HVAC blower stops working sometimes. Then out of the

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the HVAC blower stops working sometimes. Then out of the blue it will start working again. now it has stopped working and it has been over a week. With winter coming i need this to work.
JA: Will the headlights turn on? Is the battery fully charged?
Customer: yes
JA: What is the model/year of your Saturn?
Customer: 2008 Saturn Aura
JA: Are you fixing your Aura yourself? What have you tried so far?
Customer: i pulled the fuse box off and i am wondering if it is the HVAC Blower Switch that is malfunctioning.
JA: Anything else you want the mechanic to know before I connect you?
Customer: sometimes the passanger door will not open. not sure if related.

You need to test the "2" wires at the Blower Motor for Voltage + (PURPLE wire) & Ground- (BLACK wire) with the Switch on high when it stops working
IF there is Voltage + & Ground - , then Replace the Blower Motor
IF there is NO Voltage + on the PURPLE wire, then we need to do more testing
Testing will depend on if the System is Automatic or Manual Controls
Let me know what you find

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Customer: replied 1 month ago.
Sorry, could you advise on what i need to test the wire with?

Test Light or Volt Meter (DC volts)

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IF you are not familiar with vehicle electronics, you may want to have someone local assist to be sure you are testing correctly

Don 'Mo Lurch' and other Saturn Specialists are ready to help you