8.3 Cummins low oil pressure at hot idle
My 8.3 Cummins has low oil pressure at hot idle . I installed a mechanical gauge on the engine to make sure that it wasn't the dash gauge. It idles at around 8 to 10 Lbs. when hot . As soon as you bri...
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I have the same engine and with 113K miles and it has always read 10 psi at hot idle. I spoke with an old time diesel mechanic with years of experience with these engines and he said that reading is perfectly normal. The Cummins manual also list 10psi has idle minimum.
