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Why would engine oil pressure suddenly drop completely while cruising or coasting a 1985 Ford 351w after changing sending unit gauge oil pump?

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2004-12-16 10:29:10
2004-12-16 10:29:10

Ford gauges are always suspect. Never trust OEM gauges, especially older ones. It may be a bad ground somewhere along the line, or it may be an obstruction in the oil pickup tube. It could be a bad install, but probably not.

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