GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 871658  Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the cable to isolator nut caps.
  3. Remove the cable retaining nuts.

  4. Object Number: 871657  Size: SH
  5. Remove the isolator retaining nuts.
  6. Remove the isolator.

Installation Procedure


    Object Number: 871657  Size: SH
  1. Install the battery isolator to the step.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the battery isolator nuts.
  4. Tighten
    Tighten the battery isolator nuts to 9 N·m (79 lb in).


    Object Number: 871658  Size: SH
  5. Connect the cable to the isolator.
  6. Tighten
    Tighten the isolator cable nuts to 9 N·m (79 lb in).

  7. Install the caps to the isolator cable.
  8. Connect the negative battery cable . Refer to Battery Negative Cable Disconnection and Connection .