I have read of new water pumps coming from factory w/ slightly loose screws required tightening to prevent sucking AIR. With pump running, walk around and make sure no gravity drains OPEN? No valve in line between tank/pump? (most= not)
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THenne1713
2000 Conquest LE 6266, Class-C on 99-E450SD, 6.8, 2v, V-10
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