GM Service Manual Online
For 1990-2009 cars only

Tools Required

SA9401C Generator Output Stud Wrench

Removal Procedure


    Object Number: 860040  Size: SH
  1. Disconnect the battery negative cable.
  2. Remove the accessory belt.
  3. Caution: Ensure that the vehicle is properly supported and squarely positioned. To help avoid personal injury when a vehicle is on a hoist, provide additional support for the vehicle on the opposite end from which the components are being removed.

  4. Raise the vehicle on a hoist.

  5. Object Number: 860035  Size: SH
  6. Remove the right wheel and the assembly.
  7. Remove the right wheel well splash shield.
  8. Disconnect the field wires.

  9. Object Number: 870057  Size: SH

    Notice: Failure to hold the stud when loosening the lock nut may crack the plastic insulator and cause the generator to fail.

  10. Disconnect the fusible link wire using the SA9401C to hold the generator output (B+) stud from rotating.

  11. Object Number: 873460  Size: SH
  12. Remove the lower and upper generator attachment bolts.

  13. Object Number: 873462  Size: SH
  14. Remove the generator through the wheel well opening behind the strut.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 873460  Size: SH

    Notice: The generator shield must be installed to prevent premature generator failures due to foreign debris intrusion.

  1. Position the generator on the lower cylinder block bracket and install the lower attachment bolt. Install the upper attachment bolt and torque both bolts.
  2. Tighten
    Tighten the generator bolts to 32 N·m (24 lb ft).

    Notice: Failure to hold stud when tightening lock nut may crack plastic insulator and cause generator to fail.

    Important: The battery terminal fusible link wire (between the starter and generator) should be orientated on the generator between 10 and 11 o'clock position.

  3. Install the generator regulator connector and install the fusible link to the generator. When installing the fusible link, use the SA9401C to prevent the output (B+) stud from rotating.
  4. Tighten
    Tighten the generator positive terminal to 10 N·m (89 lb in).


    Object Number: 860040  Size: SH
  5. Install the accessory drive belt.
  6. Install the wheel well splash shield.
  7. Install the right wheel and tire assembly.
  8. Tighten
    Tighten the wheel nuts to 140 N·m (103 lb ft).

  9. Connect the battery negative cable.
  10. Tighten
    Tighten the battery terminal bolts to 17 N·m (13 lb ft).