Transmission Repair 1. Remove the transmission. Refer to the appropriate SI procedure. 2. Disassemble and inspect the transmission. Refer to Unit Repair Automatic Transmission – 4L60-E/4L65-E. Important: Subject: 4L60-E Automatic Transmission/Torque Converter Clutch (TCC) Shudder, Water in Transmission (Repair Transmission and Replace Transmission Filler Tube, Level Indicator and Seal) Models: 2004-2005 Buick Rainier 2003-2005 Chevrolet TrailBlazer Models 2003-2005 GMC Envoy Models 2003-2004 Oldsmobile Bravada 2005 Saab 9-7X with 4.2L In-Line 6 Cylinder Engine (VIN S — RPO LL8) • Visible rust on the transmission fluid level indicator. • Visible water in the oil pan. • A milky white substance inside the pan area. • Spacer plate gaskets that appear to be glued to the spacer plate, valve body or case. • Rust on internal transmission iron/steel components. • Remove the surge tank cap and examine the coolant for signs of contamination with transmission fluid (the coolant will have a milky, not clear appearance). • If the coolant has a normal, clear appearance, the radiator should not be replaced. • The cooler can also be tested by following the Coolant System Leak Test procedure (SI Document ID# 877442). Do NOT replace a radiator without verifying that the transmission oil cooler is leaking. If water or coolant is found in the transmission, the following components MUST be replaced. Replace the Transmission Fluid Filler Tube, Seal and Fluid Level Indicator WITH the transmission REMOVED from vehicle. 1. Remove the transmission fluid filler tube from the transmission. 2. Replace the transmission fill tube seal, P/N 1259475. 3. Replace the transmission fill tube, P/N 15000220, following the appropriate SI Document for Transmission Installation. 4. Replace the transmission fluid level indicator, P/N 15069769 when appropriate during the transmission installation. Replace the Transmission Fluid Filler Tube, Seal and Fluid Level Indicator with the transmission in the vehicle. 1. Remove the air cleaner outlet duct. Refer to Air Cleaner Element Replacement (SI Document ID# 1364496). 2. Remove the transmission fluid level indicator from the filler tube. 3. Remove the filler tube nut (2) located on the right side of the engine. 4. Remove the filler tube from the vehicle. Tip It is necessary to remove the two A/C line (suction line / low side of muffler hose) retainers and reposition • Replace all of the rubber type seals. • Replace all of the composition-faced clutch plate assemblies including the band. • Replace all of the nylon parts (Thrust Washers). • Replace the torque converter. • Thoroughly clean and rebuild the transmission, using new gaskets and oil filter. • Flush and flow check the transmission oil cooler using J 45096. Refer to Corporate Bulletin Number 02-07-30- 052C or newer – Automatic Transmission Oil Cooler Flush and Flow Test Essential Tool J 45096 TransFlow .
the A/C line to allow proper clearance for installation of the new transmission fluid fill tube. 5. Remove the A/C line at the oil level indicator tube bracket nut. 6. Remove the A/C bracket bolt from the engine lift hook. 7. Reposition the A/C line upward. 8. Install the new transmission filler tube, P/N 15000220, into position but NOT into the transmission at this time. 9. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information (SI Document ID# 744862). 10. Remove the two bolts securing the transmission heat shield to the transmission. 11. Remove the transmission heat shield from the transmission. 12. Remove the old filler tube seal from the transmission case. 13. Install a new seal, P/N 1259475 into the transmission case. 14. Position the new transmission filler tube into the transmission seal. 15. Install the transmission heat shield to the transmission. 16. Install the two bolts securing the transmission heat shield to the transmission. Tighten Tighten the bolts to 17 N·m (13 lb ft). 17. Lower the vehicle. 18. Install the nut securing the filler tube to the stud. Tighten Tighten the nut to 10 N·m (89 lb in). 19. Reposition the A/C line into place. 20. Install the A/C line bracket to the oil level indicator tube stud and secure the bracket with the nut. 21. Install the A/C line bracket to the engine lift bracket and secure the A/C bracket with the bolt