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Home >> Chevrolet >> 2008 >> HHR SS, Automatic >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transaxle - 4T45-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Repair Instructions - On Vehicle >> Transmission Mount Replacement - Left Side >> Installation Procedure

Installation Procedure

    Fig 1: View Of Transmission Mount-To-Mid-rail Bolts
    GM851557Courtesy of GENERAL MOTORS CORP.
  1. Install the transmission mount to the mid-rail.
    2. NOTE: Refer to Fastener Notice .
  2. Hand start the transmission mount to mid-rail bolts.

    Tighten:  Tighten the bolts to 34 N.m (25 lb ft).

    3. Fig 2: Supporting Engine/Transmission With Hydraulic Floor Jack
    GM851552Courtesy of GENERAL MOTORS CORP.
  3. Using a hydraulic jack, raise the transmission until it contacts the transmission mount.
    4. Fig 3: View Of Transmission Mount-To-Transmission Bolts
    GM851556Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The transmission mount to transmission bolts must be hand started. Do not pry the transmission or mount to align the holes.
  4. Hand start the transmission mount to transmission bolts using the following sequence:
    1. Rear Bolt
    2. Middle Bolt
    3. Front Bolt
  5. Using the previous sequence, tighten the transmission mount bolts.

    Tighten:  Tighten the bolts to 50 N.m (37 lb ft).

  6. Reposition the underhood electrical center.
  7. Connect the wiring harness retainer to the tray bracket.
    8. Fig 4: ECM Bracket Nuts/Bolts
    GM1720487Courtesy of GENERAL MOTORS CORP.
  8. Install the electrical center nuts (1) and bolts (2).

    Tighten: 

    • Tighten the nut to 10 N.m (89 lb in).
    • Tighten the bolt to 25 N.m (18 lb ft).

    9. Fig 5: View Of Engine Electrical Center
    GM873343Courtesy of GENERAL MOTORS CORP.
  9. Install the positive battery cables (1) to the underhood electrical center.

    Tighten:  Tighten the positive cable nut to 15 N.m (11 lb ft).

  10. Connect the engine control module harness connectors (3, 4).
  11. Install the underhood electrical center cover.
  12. Raise the vehicle.
    13. Fig 6: View Of Front Transmission Mount Through Bolt
    GM851568Courtesy of GENERAL MOTORS CORP.
  13. Hand tighten the front transmission mount thru bolt
  14. Hand tighten the rear transmission mount thru bolt.
  15. Tighten the front transmission mount thru bolt.

    Tighten:  Tighten the bolt to 100 N.m (74 lb ft).

    16. Fig 7: View Of Rear Transaxle Mount Through Bolt
    GM851620Courtesy of GENERAL MOTORS CORP.
  16. Tighten the rear transmission mount thru bolt.

    Tighten:  Tighten the bolt to 100 N.m (74 lb ft).

  17. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
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