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my heater fan slows down


when you have your alternator tested, you need to make sure they check the output of the L terminal as well (which they typically overlook). The L-terminal supplys power directly to the blower fan... this is seperate from the normal charge wire.

Its possible to have an alternator thats pumping out normal charge to the battery, but has a faulty L-terminal and therefor no blower fan.

-Rob