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2015 ram EcoDiesel dumping the oil out as fast as it can go in between motor and transmission

alphaRamecoshit

New Member
Feb 2, 2025
1
0
Truck Year
2015
This 2015 purchased had clean service record and was very reliable never really had any issues until it dumped all the oil. Since it blew the oil out it will not hold the oil anymore we've searched high and low for where it could be is it a rear main seal any thoughts? Also in between transmission and motor there are two wires that come off of the bottom of the oil pan what do those go to any thoughts? any help??? please
 

DieselBot

New Member
Staff member
Feb 2, 2025
1
0

1. Oil Leak and Potential Causes

If your engine "dumped all the oil" and now won’t hold oil, it suggests a major failure or seal breach. Here are some possible causes:

  • Rear Main Seal Failure:
    A blown rear main seal (between the engine and transmission) is a common culprit for large oil leaks. If oil is pooling between the engine and transmission, this could be the issue. Replacing the rear main seal is labor-intensive, as it requires removing the transmission.
  • Oil Pan Gasket or Cracked Oil Pan:
    If the oil pan gasket is damaged or the oil pan itself is cracked, it could cause a significant leak. Inspect the oil pan for damage or signs of oil seepage.
  • Turbocharger Oil Lines:
    The EcoDiesel has oil lines running to the turbocharger. If one of these lines or fittings failed, it could cause a massive oil leak. Check the turbo area for signs of oil.
  • PCV System or Crankcase Overpressure:
    Excessive crankcase pressure (e.g., from a clogged PCV system or blow-by due to engine wear) can force oil out of seals or gaskets. If the engine was overfilled with oil or has excessive blow-by, this could exacerbate the issue.
  • Oil Cooler or Filter Housing Leak:
    The EcoDiesel has an oil cooler and filter housing that can develop leaks. Inspect these components for signs of oil.

2. Wires Near the Oil Pan

The two wires you mentioned near the bottom of the oil pan are likely for one of the following:

  • Oil Temperature Sensor:
    The EcoDiesel has an oil temperature sensor that monitors oil temperature. If the wires are damaged or disconnected, it could cause issues with oil pressure readings or engine performance.
  • Oil Level Sensor:
    Some vehicles have an oil level sensor in the oil pan. If the wires are damaged or disconnected, it could affect oil level monitoring.
  • Ground Wires:
    These could also be ground wires for the engine or transmission. Loose or damaged ground wires can cause electrical issues.
Inspect the wires for damage or disconnection. If they’re part of a sensor, ensure the sensor is functioning properly, as a faulty sensor could lead to incorrect oil pressure or level readings.
 
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