My stock oil press gauge is doing wierd stuff. I got a "CHECK GAUGES" light when I first noticed it at ZERO. So I stopped checked my oil cap, dip stick, and just a good glance over. Nothing unusual. Started it back up, and oil went to just over 40. Turned the corner and right back to 0. I hated doing it but I had to atleast try and continue to work. After work I clmbed in and the gauge went to probably 60 and hung there....the engine wasn't runninig though. Milked it home...biting nails and listening for any freak noises. Now if I turn the ket to RUN it'll go up then drop to zero. Or it will go up and stay up for a minute or two after the truck starts then back to zero. The engine and turbo sound and run great as usual...what is going on? sensor? Help please!!

 

No takers on this one?

 

I have the same thing going on- I bought a new sending unit(still in the glove box...) from Cummins, you just need to give them the engine # off your plate. I forget exactly how much $- maybe $30? pretty common failure.

 

Oil Pressure sending unit.

 

Second the above...sending unit.

 

Where can I get the sending unit? I was thinking sensor, but that it about $260 from NAPA...a little cheaper but not much at some other stores. I really appreciate the response.

 

Try plugging your info in here to find your closest Cummins Parts house.

http://wsl.cummins.com/ServiceLocato...n=showworldmap

 

Thanks Shovelhead. I have a place 10 minute from the house and didn't know it.

 

lucky 2001 owners, mine pulled that crap a while back and the unit (from Cummins) was still $90. What a load, something that should never cost over $30.

 

$30 bucks isn't that bad compaired to the $250 I thought I was about to pay for the sensor.

 

You might try simply unplugging the wires and clean the connections really good first. Mine has done it twice; once after the high-pressure car wash, and once after right driving in a heavy rainstorm. I sense(pun intended!) a pattern here...just sprayed the ends with WD-40(and haven't pressure-washed the motor since!). Could save even the $30 for something else more fun, eh?

 

Unfortunately my truck hasn't seen a drop of water in a long time. I've been too busy even to wash it. I hope that will help. Is there actually a difference between a "oil pressure sensor" and an "oil pressure sending unit"? It might be a dumb question. I just can't find any pictures for the location of a sending unit, only the sensor. I'm just trying to save what little money I have, and get back on the road.

 

I have replaced 2 on mine each of which lasted about 6 months, and since noticed that if I raise the hood and wiggle the wires at the sensor, then I am good for another month. This has been going on for over 5 months now. I have tried pulling the connector off the sender and cleaning, then reinstalling, that was good for about 3 months. Next I will check to see if the connector can be tightened.

 

Number 22 (under the fuel filter) is the Oil Pressure Sender

 

I've seen that picture. Doesn't it say sensor?