Manual:HUMMER Hummer H3 Base 2010Page:16375 / 37523



No Reverse or Slips in Reverse — 2010 Hummer H3 Base, Automatic Service Manual

No Reverse or Slips in Reverse

Checks Causes
Input Housing Assembly (602)
  • 3-4 apply ring stuck in applied position
  • Forward clutch not releasing
  • Turbine shaft seals missing, cut or damaged
Manual Valve Link (89) Disconnected
Valve Body Assembly (60)
  • 2-3 shift valve stuck
  • Manual linkage not adjusted
  • Spacer plate and gaskets incorrect, mispositioned or damaged
  • Lo overrun valve stuck
  • Orificed cup plug restricted, missing or damaged
Reverse Input Clutch Assembly (605-614)
  • Clutch plate worn
  • Reverse input housing and drum assembly cracked at weld
  • Clutch plate retaining ring out of groove
  • Return spring assembly retaining ring out of groove
  • Seals cut or damaged
  • Restricted apply passage
  • Porosity in piston
  • Belleville plate installed incorrectly
  • Excessive clutch plate travel
  • Oversized housing
Lo and Reverse Clutch (694-696)
  • Clutch plates worn
  • Porosity in piston
  • Seals damaged
  • Return spring assembly retaining ring mispositioned
  • Restricted apply passage
Reaction Sun Shell (670) Broken spline on reaction sun shell/replace shell