Engine/Transmission (1994 - 1998) Oil pressure

[biggy238]

When I drove my truck home from the dealer I noticed that when I hit a severe enough bump the oil pressure would drop out (0psi) but hold 42 psi 99% of the time. It's gotten worse in 12,000 miles but I have no damage, no oil consumption and it still holds 42psi on start up and whenever the guage shows pressure.





I had loose and damaged valve cover gaskets which I replaced today and the engine held 42 psi for 10 miles and when I shut down to fuel the truck I restarted to no pressure on the guage.





Is this a wiring and sensor problem or something else. I've never seen anything like it.



Please make me feel better by saying its the sensor...

 

[rs454]

If the gauge just suddenly drops to 0 and then comes back on to normal oil pressure it sounds like the oil pressure sensor is going bad or just a bad connection. I would remove the sensor clean (use electrical spray cleaner) and reinstall to make sure it is not a bad connection . If it still acts up I would replace the sensor. Also if the sensor is leaking oil just replace it . Hope this helps. Rich

 

[ata]

Just change out the sending unit. (sensor) Get one from Cummin's or the dealer. Dealer will cost twice as much as Cummin's. The after market ones don't seem to last.

 

[RT66DOC]

Sensor. Had the same problem.