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Home >> Pontiac >> 2006 >> Vibe Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Automatic Transmission - Mu4 - Overhaul) >> Repair Instructions >> Fluid Pump Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of Fluid Pump Seal
    GM165164Courtesy of GENERAL MOTORS CORP.
  1. Remove the fluid pump seal (1) from the fluid pump body (2).
    2. Fig 2: Identifying Stator Shaft Seal Rings
    GM165167Courtesy of GENERAL MOTORS CORP.
  2. Remove the stator shaft seal rings (1) from the fluid pump stator shaft (2).
    3. Fig 3: Locating Fluid Pump Thrust Washer
    GM165170Courtesy of GENERAL MOTORS CORP.
  3. Remove the fluid pump thrust washer (2) from the rear of the stator shaft cover (1).
    4. Fig 4: Stator Shaft Bolts
    GM165174Courtesy of GENERAL MOTORS CORP.
  4. Remove the eleven stator shaft bolts from the fluid pump body (1).
    5. Fig 5: View Of Stator Shaft
    GM165177Courtesy of GENERAL MOTORS CORP.
  5. Remove the stator shaft (2) from the fluid pump body (1).
  6. Remove the input shaft seal from the fluid pump body.
  7. Clean all of the fluid pump components and dry the components thoroughly
  8. Inspect the following and components for excessive wear or damage and replace as necessary:
    • The fluid pump drive gear
    • The driven gear
    • The stator shaft
  9. Inspect the fluid pump body and the stator shaft cover mating surfaces for distortion or warp. Replace the fluid pump assembly as necessary.
    10. Fig 6: Measuring Pump Body-To-Driven Gear Clearance Using Feeler Gage
    GM165182Courtesy of GENERAL MOTORS CORP.
  10. Measure the pump body-to-driven gear clearance using a feeler gage (3).

    Push the fluid pump driven gear (1) to one side of the fluid pump body (2) and measure the gap on the opposite side.

    • Standard fluid pump body-to-driven gear clearance should measure between 0.070 to 0.150 mm (0.0028 to 0.0059 in).
    • If the fluid pump body-to-driven gear clearance exceeds 0.30 mm (0.012 in), replace the fluid pump assembly.
    11. Fig 7: Checking Fluid Pump Driven Gear Tip Clearance With Feeler Gage
    GM165184Courtesy of GENERAL MOTORS CORP.
  11. Measure the fluid pump driven gear tip clearance using a feeler gage (2).

    Measure the gap between the fluid pump driven gear teeth (1) and the fluid pump gear crescent (3).

    • Standard fluid pump driven gear tip clearance should fall within 0.110-0.140 mm (0.0043-0.0055 in).
    • If the fluid pump driven gear tip clearance exceeds 0.30 mm (0.012 in), replace the fluid pump assembly.
    12. Fig 8: Using J 34673 To Measure Fluid Pump Driven Gear & Side Clearance
    GM165187Courtesy of GENERAL MOTORS CORP.
  12. Use a J 34673  and a feeler gage (1) in order to measure the fluid pump drive gear (3) and the fluid pump driven gear (2) side clearance. See Special Tools .
    • Place the J 34673  across the fluid pump body and measure the clearance between the fluid pump drive gear and the fluid pump driven gear and the fluid pump body mating surface. See Special Tools .
    • The standard fluid pump drive gear and the fluid pump driven gear side clearance should fall within 0.0020-0.050 mm (0.0008-0.0020 in).
    • If the fluid pump drive gear and the fluid pump driven gear side clearance exceeds 0.10 mm (0.004 in), replace the fluid pump body.
    13. Fig 9: Measuring Fluid Pump Body Bushing Inside Diameter
    GM165191Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The fluid pump drive gear and the fluid pump driven gear are different sizes. If the thicker of the two gears is not within standard drive gear and driven gear side clearance, replace the fluid pump body.
  13. Use a J 26900-6  in order to measure the fluid pump body bushing (1) inside diameter. See Special Tools .
    • The maximum fluid pump body bushing inside diameter is 38.180 mm (1.5031 in) (2).
    • If the fluid pump body bushing inside diameter is greater than specified, replace the fluid pump body (3).
    14. Fig 10: Identifying Maximum Inside Diameter Of The Front And Rear Stator Shaft Bushings
    GM165193Courtesy of GENERAL MOTORS CORP.
  14. Use a J 26900-6  in order to measure the inside diameter of the front and rear stator shaft bushings. See Special Tools .

    The maximum inside diameter of the front and rear stator shaft bushings is:

    • Front bushing 21.570 mm (0.8492 in) (1)
    • Rear bushing 27.070 mm (1.0657 in) (2)
    • If the inside diameter of the front and rear stator shaft bushings is greater than specified, replace the stator shaft
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