Oil pressure and compression good. If it was piston slap or wrist pin, when we shut every cyclinder down the piston making the noise when it was shit down should of stoppedHow many miles on motor and what oil pressure (using mechanical gauge) Hot and Cold. The factory idot gauge doesnt tell you anything other than that there is some pressure but not how much.
Sounds like high mileage piston slap or piston pin and/or low oil pressure to me. Nobody here can really diagnose it without car in front of them. Also still need a compression check.
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