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Home >> Chevrolet >> 2005 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 707 (Automatic Transaxle - 4T80-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Repair Instructions - Off Vehicle >> Control Valve Upper Body Disassemble

Control Valve Upper Body Disassemble

WARNING: This page is about a different car, the 2008 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying 2-3 Accumulator Piston Components
    GM11997Courtesy of GENERAL MOTORS CORP.
  1. Remove the 2-3 piston cushion spring (351). Inspect the spring for damage.
  2. Remove the 2-3 accumulator piston (345) and seal (346). Inspect the seal for roll over or any other type of damage. Inspect the piston for nicks or scratches.
  3. Remove the snap ring (349), remove the 2-3 accumulator pin (348), and the 2-3 accumulator piston spring. Inspect the snap ring and the piston pin for damage.
    4. Fig 2: Locating Pressure Control Solenoid Filter, Valve & Seal
    GM1381855Courtesy of GENERAL MOTORS CORP.
  4. Remove the pressure control solenoid clamp bolt (15), the pressure control solenoid clamp (340), and the pressure control solenoid valve (339). Inspect the pressure control solenoid seals for damage.
  5. Remove the pressure control solenoid filter and seal (338). Inspect the filter seal for damage.
    6. Fig 3: Torque Converter Clutch Solenoid Valve
    GM1592021Courtesy of GENERAL MOTORS CORP.
  6. Remove the spring retainer clip (337), then remove the torque converter clutch solenoid valve (336). Inspect the seals on the torque converter clutch solenoid valve for damage.
  7. Remove the coiled spring pin (304), the converter clutch control valve (317), and the converter clutch control valve spring (316). Inspect the valve and bore for nicks, scratches, or wear.
    8. Fig 4: View Of Converter Regulator Valve
    GM12003Courtesy of GENERAL MOTORS CORP.
  8. Remove the retainer clip (308), the bore plug (307), the converter clutch regulator valve spring (319), and the converter regulator valve (318). Inspect the converter regulator valve and bore for nicks, scratches, or wear.
    9. Fig 5: Locating Torque Converter Clutch Enable Valve
    GM12004Courtesy of GENERAL MOTORS CORP.
  9. Remove the retainer clip (308), the bore plug (307), the torque converter clutch enable spring (323) and the torque converter clutch enable valve (322). Inspect the torque converter clutch enable valve and bore for nicks, scratches, or wear.
    10. Fig 6: Identifying Converter Feed Limit Valve
    GM12007Courtesy of GENERAL MOTORS CORP.
  10. Remove the retainer clip (308), the bore plug (307), the converter feed limit spring (313), and the converter feed limit valve (312). Inspect the converter feed limit valve and bore for nicks, scratches, or wear.
    11. Fig 7: View Of Actuator Feed Limit Valve
    GM12008Courtesy of GENERAL MOTORS CORP.
  11. Remove the spring retainer plate (311), the actuator feed limit spring (310), and the actuator feed limit valve (309). Inspect the feed limit valve and bore for nicks, scratches, or wear.
    12. Fig 8: Locating 2-3 Accumulator Valve
    GM12009Courtesy of GENERAL MOTORS CORP.
  12. Remove the retainer clip (308), the bore plug (307), and the 2-3 accumulator valve (306). Inspect the 2-3 accumulator valve and bore for nicks, scratches, or wear.
    13. Fig 9: Identifying 1-2, 3-4 Accumulator Valves
    GM12010Courtesy of GENERAL MOTORS CORP.
  13. Remove the coiled spring pin (304), the 1-2, 3-4 accumulator bushing (303), and the accumulator valves (301, 302). Inspect the valves for nicks, scratches, or wear.
    14. Fig 10: View Of Automatic Transmission Fluid Temperature Sensor
    GM12011Courtesy of GENERAL MOTORS CORP.
  14. Remove the automatic transmission fluid temperature sensor (350).
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