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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1030 (Automatic Transmission - 4L80-E/4L85-E (Troubleshooting)) >> Troubleshooting >> Second Gear Starts

Second Gear Starts

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Second Gear Starts

Checks Cause
Intermediate Clutch Plates (631, 632) Seized
Direct Clutch Lube Feed Blocked
Center Support Springs (635) Jammed
Center Support Piston (636) Jammed
1-2 Shift Solenoid Valve (313)
  • Stuck Off
  • O-ring failed
  • No voltage to the solenoid
  • Poor connection
PCM
  • No PCM signal to the solenoid
  • Failed
1-2 Shift Valve (314) Stuck
Check the PCM for current DTCs.