Manual:HUMMER Hummer H3 Base 2010Page:16374 / 37523
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No 3-4 Shift, Slips or Rough 3-4 Shift — 2010 Hummer H3 Base, Automatic Service ManualNo 3-4 Shift, Slips or Rough 3-4 Shift
| Checks |
Causes |
| Oil Pump Assembly (4) |
- Pump cover retainer and ball assembly omitted or damaged
- Faces not flat
|
| Valve Body Assembly (60) |
- Valves stuck
- 2-3 Shift valve train
- Accumulator valve
- 1-2 Shift valve train
- Spacer plate or gaskets incorrect, mispositioned or damaged
|
| 2-4 Servo Assembly (13-28) |
- Incorrect band apply pin
- Missing or damaged servo seals
- Porosity in piston, cover or case
- Damaged piston seal grooves
- Plugged or missing orifice cup plug
|
| Case (103) |
- 3rd Accumulator retainer and ball assembly leaking
- Porosity in 3-4 accumulator piston or bore
- 3-4 accumulator piston seal or seal grooves damaged
- Plugged or missing orifice cup plug
- Restricted oil passage
|
| Input Housing Assembly (621) |
Refer to No 2-3 Shift or 2-3 Shift Slips, Rough or Hunting . |
| 2-4 Band Assembly (602) |
Worn or misassembled |