I have tested my auxiliary water pump and determined (?) it to be not working. I intend to replace it, eventually, but I am wondering if a non working pump constricts coolant flow enough that bypassing it might improve heat delivery at low RPMs (ie freezing a** off at stoplight)?

While I'm at it, tell me if I failed at the test of the pump: I simply pulled the pigtail, hooked up leads to each prong then touched the leads to the battery terminals. Neither combo of pos/neg or neg/pos caused the pump to do anything. Bad?

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1979 300D 275K