Oil pressure drops after running 10 min

Asked by May 05, 2016 at 11:02 PM about the 2003 Dodge Ram 1500 Laramie Quad Cab SB

Question type: Maintenance & Repair

Before I blew heads 2003 1500 ram 5.9 magnum oil pressure was dropping
when stopping at light / redid heads new oil pump cleaned catch tube in oil
pan but oil pressure still dropping?

1 Answer

47,765

As oil warms up the pressure will drop some. If the engine was very dirty with sludge it may be possible that the p/u screen is getting plugged again. Have you put a mechanical pressure gauge on the engine to get an accurate assessment of what the oil pressure really is? Do the lifters start to rattle when the oil pressure drops? How many miles on this engine?

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