Hi Scotty, 2002 Ford Ranger 3.0 knocking from bottom of engine at very cold startup (- 17 on Tuesday). Is this piston slap or just a cold engine starting? Oil pressure is fine. No noise after a couple of minutes.

84000 miles

it should not knock, period. And bottom of the engine already has plenty of oil in it, the top would make noise on cold start ups. I assume engine is on its way out