1971 Ford F350 oil pressure

1971 FORD F-350
100,000 MILES • V8 • 2WD • MANUAL
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Yesterday the oil pressure pegged at idle then went to down at driving rpm. Every time I stopped it pegged then dropped to near normal reading at driving. I thought the filter by-pass might be plugged but after a filter change the problem is the same.
Sep 25, 2008 at 3:16 PM
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