LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1149 (Automatic Transaxle, 4T65-E Diagnostics (Troubleshooting)) >> Troubleshooting >> First Gear Only

First Gear Only

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
First Gear Only

Checks Cause
DEFINITION: The transmission only provides first gear in Drive range. The vehicle accelerates from a stop in first gear and does not upshift. First gear ratio is 2.921:1.
Control Valve Body Assembly
  • The 1-2 shift valve (318) is stuck or binding.
  • Debris is found in the control valve body (301) or the control valve body spacer plate and gasket assembly (396)
  • The spacer plate and gaskets (369-371) are misassembled.
Second Clutch Assembly
  • A missing or not seated second clutch backing plate retaining ring (627)
  • A missing or misassembled second clutch backing plate (626)
  • Worn, damaged, or misassembled clutch plates (623-625)
  • A missing or not seated second clutch spring retaining ring (622)
  • A damaged spring assembly (621) or piston (620)
  • A missing or damaged second clutch housing ball check valve assembly (618)
  • A damaged second clutch housing assembly (617)
Reverse Reaction Drum Damaged splines of the reverse reaction drum (669)
scientia non olet · About LEMON Manuals