Quote:
Originally Posted by Rusty
OP, you was saying that your normal oil psi is 20 to 25 at an idle. Now it 15 psi. What is your normal operating psi and what it is now? Once you replace the sensor with a new one. If it stays the same. (I believe it will). Your first guess on the valley gaskets, would be my first guess too. Your oil pressure gauge is saving you from a major rebuild.
I have a set gaskets in my toolbox for just in case.
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I would try to back up the reading with an actual oil pressure test kit before you jump into any major repair work. Not sure if they've gotten better but in the past I just haven't had good luck with the electrical gauge kits and they seem to fail exactly as your saying (low reading at idle), something about that range in the transducer seems to get wonky. The factory is more than likely just a switch and it seems to be much easier to make a reliable cheap switch than a reliable cheap transducer, probabaly one of the reasons why the snap on transducers cost about 300.00 (that and they say snap on) and most of the electric gauge kits at least in the past use fairly cheap sending units.
Matco makes a pretty damn impressive engine and trans pressure gauge kit with all fitting for fairly cheap (I think I paid about 120.00), don't buy snap ons it's a rip off.