Here's a breakdown of the potential causes and the general approach to fixing it:
Possible Sources of the Leak:
* Rear Main Seal of the Engine: This seal is located where the engine crankshaft exits the engine block and enters the transmission. This is a common source of leaks.
* Transmission Input Shaft Seal: This seal prevents fluid from escaping the transmission where the input shaft connects to the engine.
* Cracked Engine Block or Transmission Case: A less common but more serious problem, this would require significant repairs or even replacement of the engine or transmission.
* Improperly Installed Transmission: If the transmission was recently replaced or serviced, there's a possibility it wasn't installed correctly.
* Coolant Leaks from Engine: While not directly in between the engine and transmission, a coolant leak from the engine could run down and make it *appear* as if it's coming from that area.
Troubleshooting Steps (Best left to a professional):
1. Identify the Fluid: Is it coolant (green, orange, or pink), transmission fluid (red, brown), or engine oil (black or brown)? This is crucial in determining the source.
2. Visual Inspection: With a clean engine, carefully examine the area between the engine and transmission for visible leaks. Use a flashlight and possibly a mirror to get a good look at all areas.
3. Pressure Testing: A mechanic may pressure test the cooling system and the transmission to pinpoint the source of the leak.
4. Dye Test: Adding dye to the cooling system or transmission fluid can help trace the leak's path.
Repair Procedures (Professional Work Recommended):
The repair will vary dramatically depending on the source of the leak:
* Rear Main Seal Replacement: This involves removing the transmission to access and replace the seal. It's a major job requiring extensive mechanical knowledge.
* Transmission Input Shaft Seal Replacement: Similar to the rear main seal replacement, this also requires transmission removal.
* Engine Block or Transmission Case Repair/Replacement: This is a very extensive and costly repair, possibly requiring engine or transmission replacement.
Why You Should Seek Professional Help:
This is a complex repair that requires specialized tools, knowledge, and experience. Incorrect repairs can lead to further damage and expensive repairs down the line. Attempting this yourself without the proper knowledge and tools could lead to:
* Damage to the engine or transmission: Improper removal or installation could cause irreversible damage.
* Injury to yourself: Working with engine components requires safety precautions.
* Wasted time and money: If you attempt the repair unsuccessfully, you'll have lost time and money, plus the cost of professional repair will likely be higher.
In short: Take your Dodge Ram to a qualified mechanic specializing in automotive repair. Describe the problem accurately, and let them diagnose and repair the leak. Attempting this repair yourself is highly discouraged unless you have the skills and experience.