Lose of oil pressure on 98 12v

[nwells]

Being a rather new subscriber, I hope that I am not bring something that has been discussed before. It seems that lately, my '98 12v with approximately 40,000 miles shows a total lose of oil pressure when slowing to make a stop. I have checked and I'm not actually losing pressure in the engine. Has anyone else had a problem with the pressure sensor or the gauge itself. Seems like my friendly Dodge dealer wants about 180. 00 for a sender, which I think is rediculous and too much to just take a gamble on. Anyone else had this problem and what was the fix? Thanks for any help.

Norm Wells

 

[illflem]

Check that all your electrical connections are good first. Some folks have reported problems with cheaper auto parts replacement senders, problem solved by paying the price for a OEM. You should be able to get a much better price on a sender from Cummins than the stealer. You will also need a special sender socket to replace the sender, available at most auto parts for under $10.

 

[JConley]

I have a 98 12V, and I have had the oil pressure gauge go to zero when coming to a stop. The bells start going off, and you wonder what is going on. This happens every now and then, but not often enough for me to worry about it. From what I know, the Cummins will shut down when the oil pressure in the engine gets low enough. I never checked to see if it is the gauge or the sender causing the problem. I just ignore it, and drive on. If it starts happening enough to get annoying, then I will start looking for a fix.

 

[Cummins Corvette]

A 12v engine will only shut off after it has locked up. I don't think that a 12v has the electronics to shut off its self. If the guage is going to zero though, replace the sender with a good one. This will almost always fix it.

 

[MDW]

I had the exact same problem with the oil pressure dropping zero when stopping. It eventually got worse (scared the he$$ out of me) so I replaced the sending unit with a cheap after market unit and it is not exactly right but its getting the job done. In hind site I would have gone to Cummins for a better unit.



Hope this helps, Michael.

 

[BBrodin]

I had the same problem at about 50k miles. Had the sending unit replaced and no more problems.

 

[CumminsPower98]

Oil pressure sender

Same thing on my '98 12 valve. $53 sender from Carquest fixed it.