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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 66 (AUTOMATIC TRANSMISSION SERVICING)REMOVAL & INSTALLATIONCONTROL & SHIFT SOLENOIDS (4L60-E)INSTALLATION
1999 GMC Forward Control 5.7 R, Automatic

Control & Shift Solenoids (4L60-E): Installation

1999 GMC Forward Control 5.7 R, AutomaticSECTION Installation
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, 2002 Chevrolet RV Cutaway, and 2002 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the 3-2 control solenoid. Install the 3-2 control solenoid retainer. Install the 1-2 and 2-3 shift control solenoids. See Fig 4 .
  2. Install the 1-2 and 2-3 shift control solenoid retainers. Install the pressure control solenoid. Ensure the electrical tabs are facing outboard. See Fig 4 .
  3. Install the pressure control solenoid retainer and retaining bolt and tighten to specification. See TORQUE SPECIFICATIONS  .
  4. Connect the internal wiring harness electrical connectors to the following components:
    • Transmission fluid pressure switch. See Fig 2 .
    • 1-2 shift control solenoid.
    • 2-3 shift control solenoid.
    • Pressure control solenoid.
    • TCC PWM solenoid.
    • 3-2 control solenoid.
  5. Install the 1-2 accumulator. See ACCUMULATOR ASSEMBLY (4L60-E)  .
  6. Install the oil filter and oil pan. See DRAINING & REFILLING  under LUBRICATION.
  7. Fill transmission with appropriate fluid to proper level. See LUBRICATION  .
Fig 1: Locating Valve Body Solenoids
G99A03602Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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