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HOMESERVICE MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 730 (SEAT SYSTEM)REPAIR INSTRUCTIONSLUMBAR BLADDER REPLACEMENTREMOVAL PROCEDURE
1998 Chevrolet Suburban K2500, 7.4 J, Part Time

Removal Procedure

1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION Removal Procedure
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The lumbar bladders and bolster bladders are serviced as 1 lumbar/lateral bladder system. The bladder system is serviced separate from the module assembly. The bladder service part is supplied with the necessary connector fittings. The bladder to module hoses are labeled #3, #4, and #5 to aid in assembly.

  1. Raise the seat to the full up position.
  2. Remove the seat. Refer to SEAT REPLACEMENT (POWER)  or SEAT REPLACEMENT (MANUAL)  . 
  3. Remove the seat cushion cover and pad. Refer to SEAT CUSHION TRIM COVER AND PAD REPLACEMENT .
    Fig 1: Seat Cushion Cover & Pad
    G01451711Courtesy of GENERAL MOTORS CORP.
  4. Unhook the J strip attaching the bottom of the seat back insert pillow.
  5. Remove the 2 fir tree fasteners attaching the upper sides of the insert pillow.
  6. Unzip the upper insert pillow zipper.
  7. Remove the seat back insert pillow.
  8. Remove the 4 lower fir tree fasteners attaching the seat back cover.
  9. Peel the trim cover from the bolsters and reposition the trim up over the top of the seat back. (trim will be inside out).
  10. Peel the foam pad from the bolsters and reposition to expose the lumbar system.
    Fig 2: Seat Back Insert Pillow
    G01451712Courtesy of GENERAL MOTORS CORP.
  11. Remove the lumbar/lateral bladder system from the seat back.
    Fig 3: Removing Lumbar/Lateral Bladder System From Seat Back
    G01451713Courtesy of GENERAL MOTORS CORP.
  12. Remove the control module J strips from the seat support wires.
  13. Reposition the control module to the top of the seat support wires. (It is not necessary to remove the lumbar pump).
    Fig 4: Removing Control Module J Strips From Seat Support Wires
    G01451714Courtesy of GENERAL MOTORS CORP.
  14. Cut the three hoses (4) connecting the control module to the lumbar/lateral bladders 75 mm (3 in) from the control module.
    Fig 5: Cutting Three Hoses Connecting Control Module To Lumbar/Lateral Bladders
    G01451715Courtesy of GENERAL MOTORS CORP.
  15. Remove the tie strap attaching the hoses to the seat frame.
  16. Remove the lumbar/lateral bladder assembly.
    Fig 6: Lumbar/Lateral Bladder Assembly
    G01451716Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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