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N Central IA | The first thing I would do is destroke the pump with a destroking screw. The stroke control vale can sometimes get metal in them and cause them to work erratically. If the pump didn't work and is now working off and on I would say this is a good possibility. The major break down theories are probably not on the right path, these pumps don't have a major breakdown then fix themselves, jmo. Good luck | |
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