2003 dodge 3500 cummins oil pressure dropped, diesel fuel in the oil turned the key and codes are p0107 and p0073 Iam 5 hrs from home please help pull;ed the valve covers and there is small cooper fragments in the valve train

 

how does diesel fuel get into the oil plese help

 

bad injectors.
Need to have them changed, If I remember correctly.
Where you at?

 

P0107 Manifold Absolute Pressure/BARO Sensor Low Input

P0073 Ambient Air Temperature Sensor Circuit High (TIPM)

P0073 Inlet Air Temperature Sensor Voltage Too High

 

truck was running fine then all the oil pressure dropped, I checked thr oil and it was full of diesel fuel. I was thinking a seal in the injector pump might have went bad toallow this not sure any help would be appreciated, visiting the in laws souyh florida,(kissimmee)

 

Driving around town (35 or so mph) or traveling down the highway?

 

the oil pressure dropped and i was only running about 40mph with a trailer the oil pressure never came back and I have yet to do anything ..(change oil ect... ) wanting to figure out how the fuel is getting in there befor I waste money thanks so much for your help

 

I agree with roughstock, the most common cause that I am aware of for diesel in the oil is a bad injector(s). Usually it starts to run a little rough, but not always. Is it still under warranty?

 

no its not 129,000 miles and its an 03 I just cant see how a bad injector can let fuel in the motor but I am also not a diesel mechanic. thanks for yor help
you dont think its the injector pump than???

 

The injector sticks open or leaks, washing down the cylinder, that much fuel gets past the piston rings and into the crankcase. If you run it, it will score the cylinder...If it hasn't already. With that much fuel in the crankcase I wouldn't run it at all until it's fixed.
Could be the pump, but most problems with this fuel system have been the injectors. Dodge wanted an arm and a leg for them last I knew. There may be other options now in the after market. Try doing a search for injectors.

 

How did you determine fuel in oil? Did you verify oil pressure with a different gauge?

 

I know time is of the essence here but your cheaper way out would be to send the injectors off to F1 and have Don rebuild them.The dealer will want to change all of them at near $400 a piece plus labor.

 

If it was me I would change the oil and filter and start it up in the driveway to see if you get oil pressure back. Cheap easy first step that will tell whether the indication is the problem. From there you can monitor the oil every few minutes to begin with to see if the diesel returns quickly or not. For that point you can determine what you want to do about the injectors. Just my $.02

 

I have had 2 injectorys fail and each time it filled the crankcase with diesel and I lost indicated oil pressure, especially at lower speeds and the thined out oil didn't show much pressure. This was on my 04.5 but as above my guess would be a failed O-ring on the injector or a failed tip on same. To check it ciorrectly you will need a Cummings shop or Dodge shop to do an injector kill test and they can tell you which one(s) is/are failing or failed.

 

Same thing happened to me, diesel in the oil, had a cracked injector.Southeast Power systems in the Orlando/ Kissimmee area will check it out for you, ask for Frank. They charge 150 to put the computer tester on it to check it out. It will tell you whats up with the truck ask. Pm me I 'll send you the phone number.