GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Century (China) (CNG) 🢒 Engine 🢒 Engine Controls - 3.0L (L46) 🢒 Solenoids and Wiring Harness Replacement

Removal Procedure
  1. Remove the case side cover. Refer to Control Valve Body Cover Replacement .

    2. Object Number: 48209 Size: SH
  2. Use a small flat-bladed tool in order to remove the wiring harness from the solenoid valve(s) (315A, 315B, 322, 334 and/or 440), TFP manual valve position switch (395) and/or the temperature sensor (391).

    3. Object Number: 48210 Size: SH
  3. Remove the wiring harness (224).
  4. Remove the clips retaining the solenoid(s).

    5. Object Number: 49328 Size: SH
  5. Remove the solenoid(s).

    6. Object Number: 49385 Size: SH
  6. Remove the 2-3 shift solenoid (315B).

    7. Object Number: 49407 Size: SH
  7. Inspect the wiring harness (224).

Installation Procedure

    Object Number: 49385 Size: SH
  1. Install the 2-3 shift solenoid (315B).

    2. Object Number: 49328 Size: SH
  2. Install the solenoid(s).
  3. Install the retaining clips.

    4. Object Number: 48210 Size: SH
  4. Install the wiring harness (224).

    5. Object Number: 49409 Size: SH
  5. Install the wiring harness to the solenoid valve(s) (315A, 315B, 322, 334 and/or 440), TFP manual valve position switch (395) and/or the temperature sensor (391).
  6. Install the case side cover. Refer to Control Valve Body Cover Replacement .