2009 Hummer H3T AlphaFACTORY OEM SERVICE PROCEDURE

Transfer Case Motor/Encoder Replacement

Fig 1: Transfer Case Motor/Encoder Replacement
GM1558878Courtesy of GENERAL MOTORS CORP.
Callout Component Name
CAUTION: Refer to Fastener Caution .

Preliminary Procedures

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the transfer case shield. Refer to Transfer Case Shield ReplacementΒ .
1 Encoder Motor Electrical Connector
2 Mounting Encoder Motor Bolt (Qty: 3)

Tighten:Β  10 N.m (89 lb in)

3 Encoder Motor Mounting Bracket Bolt

Tighten:Β  10 N.m (89 lb in)

4 Encoder Assembly Motor
5 Encoder Motor Bracket Nut

Tighten:Β  5 N.m (44 lb in)

6 Encoder Motor Bracket
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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