Transmission Oil Leak

Begin with a thorough inspection of the transmission, particularly at the area of the suspected leak. If an oil leak source is not readily identifiable, the following steps should be followed:

1. Clean or degrease the transmission with a water soluble solvent only.
2. Add an oil soluble dye (use as recommended by manufacturer) while the powertrain is at ambient temperature. Start the engine and let idle for approximately 15 minutes. Check the oil dip stick (if equipped) to make sure the dye is thoroughly mixed as indicated with a fluorescent color under a black light.
3. Using a black light, inspect the entire transmission for fluorescent dye, practically at the suspected area of oil leak. If the oil leak is found and identified, repair per service information instructions.
4. If dye is not observed, drive the vehicle at various speeds for approximately 24 km (15 miles) and repeat inspection.