* Rear Seal: This seal is located where the transmission meets the differential. A leak here will often drip down towards the rear of the transmission. This is a more involved repair than the front seal.
* Input Shaft Seal: This seal is on the input shaft, where it enters the transmission case. It can be difficult to access and replace.
* Extension Housing Seal (If applicable): Some transmissions have an extension housing. A leak here would be near the output shaft.
* Valve Body Gasket: While less common, a leak from the valve body gasket can sometimes mimic other leaks. This would likely be more of a seep than a significant drip.
* Cracked Case: A crack in the transmission case itself is possible, though less likely unless the transmission has experienced significant damage. This requires a more significant repair or transmission replacement.
* Improper Installation: It's possible the front seal or pan gasket wasn't installed correctly. While you've already done this, double-checking is crucial. Were the surfaces perfectly clean and free of debris before installation? Was the correct sealant used?
* Transmission Cooler Lines: These lines carry transmission fluid and can leak. Inspect them carefully for cracks, loose connections, or corrosion.
Troubleshooting Steps:
1. Thoroughly Clean the Transmission: Use a degreaser and pressure washer (carefully!) to remove all existing transmission fluid. This will allow you to pinpoint the exact location of the new leak after some driving.
2. Inspect the Transmission Closely: After cleaning, run the engine for a short time (while carefully observing from a safe distance), then look closely for fresh fluid leaks. Use a flashlight to see into hard-to-reach areas. Pay close attention to the areas mentioned above (rear seal, input shaft seal, extension housing, etc.). Take pictures to help pinpoint the location.
3. Check Fluid Level: Make sure the transmission fluid level is correct *after* the repairs. An overfilled transmission can cause leaks.
4. Consider a Professional Opinion: If you can't locate the leak after careful inspection, it's best to take your Cadillac to a transmission specialist. They have the experience and equipment to diagnose the problem accurately. The cost of a misdiagnosis and further unnecessary repairs can quickly outweigh the cost of professional help.
Remember safety first! Work on a level surface with the car securely supported. Transmission fluid is hot when the car is running, so avoid burns.
