Transmission Element Sources

Key to element symbols:

Transmission Element Sources	Element
Possible Source	Al	Cr	Cu	Fe	Pb	Si	Na	Sn
Aluminum								•
Anti-seize compounds (no failure)	•		•					•
Bearing - differential			•
Bearings		•		•				•
Brakes discs			•
Brass pump parts			•
Clutch housing				•
Clutch pack piston	•
Clutch plates (Transmission or lock-up clutch)				•
Condensation							•
Possible Source	Al	Cr	Cu	Fe	Pb	Si	Na	Sn
Coolant leak							•
Cooler core leaching (no failure)			•
Dirt entry						•
Dirt entry (clay soils)	•							•
Friction bonding agent					•
Gears				•
Housing				•
Isolation plate (gear pump)	•							•
Lockup clutch disc			•
Oil additives (no failure)			•			•	•
Possible Source	Al	Cr	Cu	Fe	Pb	Si	Na	Sn
Pressure plate wear (gear pump)			•
Pump and motor bearings								•
Pump bearings				•				•
Pump body wear	•
Pump body wear (gear pump)	•							•
Pump housing				•
Pump wear				•
Roller bearings		•		•				•
Shafts				•
Silicon additives (no failure)						•
Possible Source	Al	Cr	Cu	Fe	Pb	Si	Na	Sn
Silicon grease (no failure)						•
Slipper and port plate wear (piston pump)			•
Splines				•
Thrust washer - differential			•
Thrust washers (drop box assembly)			•
Thrust washers (inter axle assembly)			•
Torque converter bushing(s)			•
Torque converter impeller	•
Torque converter turbine	•
Transmission center shaft - sleeve bearing			•
Possible Source	Al	Cr	Cu	Fe	Pb	Si	Na	Sn
Transmission discs			•
Washer - axle			•
Water entry							•
Possible Source	Al	Cr	Cu	Fe	Pb	Si	Na	Sn