No, I don't think it would cause a loss of cold engine oil pressure. Of course we had only a very ineffective read on oil pressure. I would follow Barry, use his plan, remove the oil pressure sender switch and see if it blows oil. If it does you have oil pressure, and yes you might have a bad or spun bearing. Seems you are one of those owners who needs help and yet are determined to do it your way. Smell the fuel tank for gas! Oh, OK, it has gone a half million miles, who knows what is in there? There better be only one thing in there, diesel. Take a sniff. Smell any gasoline?

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Junqueyardjim
Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis



1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA

2003 Jaguar Type X, AWD. beautiful, good mileage,
Mom's car, but I won't let her drive it!