I have the 4.0 I6 with 56k miles. Engine burns or leaks no oil. At start up and driving under acceleration oil pressure gauge reads 40. When I come to a stop and at idle pressure drops to 10. Then back under acceleration it jumps to 40. Could this be a bad oil pump, clogged pump, or more serious issues? TIA, Clay
Matt Osborn did pass the time by typing:
Actually, it's a little low. not bad though but a little higer under acceleration would be better.
Spec: Idle (600 RPM) 13psi (1600 RPM) 37-75psi
That could be just dirty connections on the sensor. It's down by the oil filter, just remove, clean, and replace the connector.
56K is a little low for having bearing wear or a wearing pump. What oil are you running?
I am using 10w30 non synthetic. My 94 Country with the I6 (124k) seems to stay at a constant 40-50 with no wild swings on the gauge. Thanks for the info. Clay
More than likely if there's an issue it's with the sender. You can get a mechanical gauge to hook up to your sender port and check the pressure that way.
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