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					Originally Posted by  Mysterytrain
					 
				 
				Remove the rear blower and test it with 12 volts. If it works thats not the problem. If is doesn't work then you have a few choices, replace the motor with the OEM unit [if available], replace the motor with a universal motor from Grainger [do a search on this fix] or run the system with out the rear blower. You would need to  re-plumb the ducts and modify the engine compartment controller [pretty simple task]. 
Explained here:
 Help! Does anyone understand the footwell blower circuit?
or here:
 Carrera - Removing Engine Compartment Heater Blower 
			
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Great info. Thanks, Ron. I'll be checking today and will report back.