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FLUID LEAKAGE FLUID LEAKAGE - TORQUE CONVERTER HOUSING AREA When diagnosing converter housing (5) fluid leaks, 1. Verify proper transmission fluid level. 2. Verify that the leak originates from the converter housing area and is transmission fluid. 3. Determine the true source of the leak. Fluid leakage at or around the torque converter area Some suspected converter housing fluid leaks may Pump seal (1) leaks tend to move along the drive hub and onto the rear of the converter. Pump o-ring or pump TORQUE CONVERTER LEAKAGE Possible sources of torque converter leakage are: • Torque converter weld leaks at the outside diam- • Torque converter hub weld (2). STANDARD PROCEDURE - ALUMINUM THREAD REPAIR Damaged or worn threads in the aluminum transmission case and valve body can be repaired by the use of Heli- T , or equivalent. This repair consists of drilling out the worn-out damaged threads. Then tap the hole with a special Heli-Coil T tap, or equivalent, and installing a Heli-Coil T insert, or equivalent, into the hole. This brings the hole back to its original thread size. Heli-Coil T , or equivalent, tools, and inserts are readily available from most automotive parts suppliers. 21 - 256 AUTOMATIC TRANSMISSION 42RLE - SERVICE INFORMATION ND |