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Automatic Transmission Removal & Installation: Application GMC Savana H2500

Automatic Trans 4 illustrations ~418 words

APPLICATION

ApplicationTransmission Model (RPO Code)
Chevrolet
Express4L60-E (M30) Or 4L80-E (MT1)
Cutaway & RV Cutaway4L80-E (MT1)
GMC
Savana4L60-E (M30) Or 4L80-E (MT1)
Savana Camper Special & Savana Special4L80-E (MT1)

TRANSMISSION APPLICATION

WARNINGVehicle is equipped with Supplemental Inflatable Restraint (SIR) system. When servicing vehicle, use care to avoid accidental air bag deployment. SIR system-related components are located in various locations throughout interior and exterior of vehicle, depending on application. Do not use electrical test equipment on or near these circuits. If necessary, deactivate SIR system before servicing components. See appropriate AIR BAG DEACTIVATION PROCEDURES article in GENERAL INFORMATION.
CAUTIONWhen battery is disconnected, vehicle computer may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.
CAUTIONBefore servicing any electrical component, the ignition key must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.

Note. Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Scheme 81

Scheme 81: Removal (4L60-E)
Scheme 81: Removal (4L60-E)

Scheme 82

Scheme 82
Scheme 82

Scheme 83

Scheme 83
Scheme 83

Scheme 84

Scheme 84
Scheme 84
  1. Disconnect the battery negative (-) cable assembly from the battery negative terminal.
  2. Raise the vehicle.
  3. Support the vehicle with safety stands.
  4. Disconnect the range selector cable from the transmission bracket and from the range selector lever. (Scheme 81)
  5. If equipped with All Wheel Drive (AWD), remove the transfer case. See appropriate REMOVAL & INSTALLATION article in TRANSFER CASES.
  6. Remove the rear drive shaft. See appropriate DRIVE SHAFTS & UNIVERSAL JOINTS article in DRIVELINE/AXLES.
  7. Support the transmission with a transmission jack.
  8. Remove the transmission support. See «TRANSMISSION SUPPORT»(ref-154846-S34063358432003052900000).
  9. Remove the exhaust pipe from the exhaust manifolds and the muffler assembly from the exhaust pipe.
  10. Remove the starter motor. See appropriate STARTERS article in ELECTRICAL.
  11. Remove the converter sight shield. (Scheme 82)
  12. Mark the flywheel and the torque converter alignment.
  13. Remove the bolts that attach the torque converter to the engine flywheel. (Scheme 83)
  14. Remove the transmission vent hose and the wiring harness from the transmission.
  15. Remove the transmission fluid fill tube and the fill tube seal from the transmission. See FILLER TUBE under REMOVAL & INSTALLATION in appropriate SERVICING article.
  16. Plug the fluid fill tube opening in the transmission.
  17. Disconnect the transmission oil cooler pipes from the transmission.
  18. Plug the transmission oil cooler pipe connectors in the transmission case.
  19. Disconnect the wiring harness connectors from the transmission Vehicle Speed Sensor (VSS) and the Park/Neutral Position (PNP) switch. (Scheme 84)
  20. Remove all vehicle harness wires, harness clips, tubes, brackets, and lines that may interfere with the removal of the transmission from the vehicle.
  21. Remove the studs and the bolts securing the transmission to the engine. see scheme 5
  22. Pull the transmission straight back.
  23. Remove the transmission from the vehicle.
  24. Inspect all the components for wear and damage.
  25. Inspect all the seals and the fittings for signs of wear.
  26. Inspect the torque converter for stripped or broken weld nuts.
  27. Inspect the transmission case for cracks.

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