GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2005 🢒 Bonneville 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T80-E 🢒 Control Valve Upper Body Disassemble

    Object Number: 11997 Size: SH
  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. Object Number: 1381855 Size: SH
  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. Object Number: 11999 Size: SH
  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. Object Number: 12003 Size: SH
  8. Remove the retainer clip (308), the bore plug (307), the converter clutch regulator spring (319), and the converter regulator valve (318). Inspect the converter regulator valve and bore for nicks, scratches, or wear.

    9. Object Number: 12004 Size: SH
  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. Object Number: 12007 Size: SH
  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. Object Number: 12008 Size: SH
  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. Object Number: 12009 Size: SH
  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. Object Number: 12010 Size: SH
  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. Object Number: 12011 Size: SH
  14. Remove the automatic transmission fluid temperature sensor (350).