Pete,

This is a very nice write up. I was wondering whether the failures out there were mechanical from the internal impeller OR as you have shown, electrical.

Anyone else have experience replacing these motors? I know they can get noisy but can they stop pumping with the electrical motor still running?

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84 300DT Puke Yellow. Totalled after 438,000
84 300DT Orient Red. 169,000 (actual mileage may vary)
2002 Explorer EB (wife's)