Possible Points of Fluid Leaks

Transmission Valve Body Cover

• Incorrectly tightened bolts
• Improperly installed or damaged gasket/seal
• Damaged mounting face
• Incorrect gasket seal

Case Leak

• Damaged input speed sensor seal
• Damaged manual shaft seal
• Loose or damaged oil cooler lines/seals
• Worn or damaged axle shaft oil seal
• Loose line pressure pipe plug or fluid level pipe plug
• Porous casting
• Warped torque converter housing
• Damaged converter housing to case seal

Leak at the Torque Converter End

• Converter leak in the weld area
• Converter seal lip cut. Check the converter hub for damage
• Converter seal bushing moved forward and damaged
• Converter seal garter spring missing from the seal
• Porous casting of the torque converter housing

Leak at the Vent

• Overfilled system
• Water or coolant in the fluid; The fluid will appear milky
• Transmission case porous
• Incorrect fluid level indicator causing an overfilled system
• Plugged vent