ok guys here is the problem, i have plenty of oil in the truck and i'm not leaking oil from anywhere that i know of. the problem is that i have no indication of oil pressure on the gauges. i don't have a check engine light but the "check gages" is lit and stays on. however the first time that it came on i checked the oil and it was a little low. i added oil and waited about an hour and it was fine. i had around 50 psi which is normal for mine. i drove about 10 miles later that day and the light came back on and the gauge says 0 PSI. does any one have any advice as to what to check or what is wrong. anything is helpful right now. i will be installing a manual gauge on friday when i get off of duty but i'm searching for any answers between now and then!!!

 

First - it might be helpful if you let us know what year your truck is...

Second, if you have oil in the crankcase, it doesnt matter how many times the bell rings. This problem is likely a bad oil pressure sender. Dont get one from the Parts Store - they do not last and are a waste of $$. Get the sender directly from Cummins.

Third, you may have some other issue going on. Get your hands on an OBDII scanner and see if they are any codes.

 

ok sorry about that lack of information and thank you for the other stuff. ok to start off with the truck is a 2000 CTD 2500 sport 4wd quad cab. do you have a link or other way to get in touch with Cummins or just google it?? and the scanner part will also be taken care of on friday morning. Thanks again "Dr.Evil" so much for your help and advice.

 

I dont know where you live but there are lots of Cummins service centers. I believe some parts are also available from Freightliner.

If you go onto www.Cummins.com you will be able to search for parts/service thats local to you.

 

Very likely that it's just the sender, it was a common problem on these trucks from everything i've read.

I second Dr. Evil with getting parts directly from Cummins, you'll pay half of what the dealer gets for them. I can get you the part number if you'd like.

 

MRFD715- if you could get that part number that would be great and i appreciate your input as well thanks everyone for the help

 

Here ya go, Cummins P/N: 4921511. I had to replace mine earlier this summer and it was right at $100 from Cummins, over twice that from Dodge.

When you go to replace it take the stock fuel filter canister loose(if you're still running it) and lean it out of the way, gives you a lot more room to work.

 

thank i was wondering what the easiest way to do that would be. i am very thankful to you for the information. i have only had my dodge for about 5 months and the guy i bought it from turned me on to the site here. he said there are alot of people with a lot of info that are willing to share and that is exactly what i have gotten. thanks again guys. anything else is helpful too!

 

Glad to help, if you ever have any type of problem someone on this site is bound to have answers for ya. I know that I have had plenty of help from everyone here. That's why I love the DTR

 

I ask this question because it happened to me. Have you switched from Rotella or dello oil to a synthic oil? If so, you could have a clogged pickup tube at the screen. I hope for your sake it's just the sender.
Happy Truck'n

 

My old 01' was reading low oil pressure. I was stressing about replacing the oil pump when the NAPA guy told me he has sold several oil pressure senders. I bought one and put it on and sure enough , I had normal oil pressure again.

 

ok now that i have the part from coummins i have to install the new "wiring harness" the one wire that goes from the new sensor to the round harness plug. i have about two feet of wire to work with. i've look but can't seem to find what i'm looking for. has anyone done this that can share some helpful information with me? thanks again

 

Hmmm. Didn't have to do that on mine. I put in a direct replacement from O'Rieley's for $29.95 one year ago and it's not gone bad since.

Welcome to DTR - pleast take amoment to fill out your signature so it's much easier to help with diagnosing issues. And you don't have to put it all back into each thread. I would suggest: Year, type (4wd or 2wd), transmission, apx mileage. as a minimum.

Good luck.

 

I had this same issue on my 99. After talking with several people, I decided to just install a separate oil pressure guage. I went into the top of the oil filter housing with a T fitting and routed the line to the cab where my gauge is located.
This fix was pretty easy to install.