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334 Posts
Hey people. I have a 89 EB Bronco, with a 5.0, 71,000 miles. It sat for 6 years. I got about a week ago. It runs about 45 to 50 p.s.i while running. As soon as I come to a stop the pressure drop's to 0. No Knocking or anything. And only after it has warmed up. I don';t think that it's the oil pump, I'm thinking maybe the sending unit.