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Old 08-16-2014, 09:30 AM   #7
bayview
Guru
 
City: gulf coast
Country: pinellas
Join Date: Jun 2014
Posts: 2,822
Sounds like something is blocking the flow from time to time. Junk or old impeller pieces may block flow then settle down with shut down only to plug up sometime later. Look at the first thing downstream from the pump, trans oil cooler? Then the after cooler then heat exchanger.

Also worth checking the seacock hose for growth if the above easy stuff is not the problem.
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