GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Generic 🢒 1999 🢒 Unit Repair 🢒 Engine 🢒 Engine Controls - 6.5L 🢒 ESO Solenoid Replacement

Removal Procedure

    Object Number: 377146 Size: SH
  1. Remove the electrical connector from the ESO solenoid.

    2. Important: Remove any debris from the ESO mounting surfaces on the injection pump before servicing the ESO Solenoid. This will prevent contaminate intrusion into the injection pump.

  2. Remove the ESO solenoid.

Installation Procedure

    Object Number: 377146 Size: SH
  1. Install the new o-ring on the ESO solenoid.
  2. Install the ESO solenoid in the injection pump.

    3. Tighten
    Tighten solenoid (external hex or internal hex) to 25 N·m (19 lb ft).

  3. Install the ESO electrical connector.
  4. Start engine and check for leaks.