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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 >> Second Gear Only

Second 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.
Second Gear Only

Checks Cause
DEFINITION: The transmission only provides second gear in Drive range. The vehicle accelerates from a stop in second gear and does not upshift. Second gear ratio is 1.568:1.
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)
Input Carrier Assembly
  • A damaged input sun gear (668)
  • Damaged input carrier (672) planetary pinions
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