Does anyone know offhand where the factory oil pressure sending unit is located on a 1995 F350 7.3L? My gauge just started acting up (either that or my oil pressure keeps intermittently dropping to almost zero, and there is plenty in the pan). Is there a recommended alternate spot to tap in with a reference gauge?
Joe,
Thanks for the photo. What thread is the hole where you added the aftermarket sending unit? It looks like you have an adapter in there before the pipe thread elbow.
Mine turned out to be just some corrosion on the terminal of the factory "sending unit". I didn't realize that it was only a pressure switch (though I have wondered why the oil pressure always seemed to be the same). That factory gauge is just a placebo! Time to add space for more gauges, as I will be adding a real oil pressure gauge to mine.
there is a 1/8th npt fitting on the back of the block... within a half inch of the bellhousing, it is located on a "ear" that sticks out where the starter would be (only on the opposite side), it is plugged with a square headed plug, it can be removed and a pressure sending unit screwed right in as most of them are 1/8th npt also
this port measures the pressure off the last main bearing right before it goes up to the turbo (the last thing on the loop)... IMO it is the best place to measure pressure because if this place has oil the rest of the mill has oil
and the install is as simple as removing the plug and screwing in a sending unit
if you are interested and can't find the plug let me know and i will post a pic of my truck
Thats a great place,oke: but thats where I have my oil temp sender mounted:sly:
Red arrow is the oil temp sender, blue is the second port I think your referring to. I was under the understanding that this port was not under pressure:shrug: , am I wrongoke: ?
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