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High fans delayed one minute
I have a question about the fan operation on this model Impala. Fans will not start blowing on high until about one minute after you command A/C operation. As far as I can tell HVAC controller sends input to ecm. ECM sends commands to relays. No where can I f... Login to read more. 
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| Engine | 5.3 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2007 Chevrolet Impala SS 5.3L
| Engine | 5.3 L |
| Trans | 4-speed Automatic (Electronic) |
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