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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 and Third Gear Only - D4

Second and Third Gear Only - D4

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 and Third Gear Only - D4

Checks Cause
1-2 Solenoid (313)
Check for DTCs.
  • Stuck Off
  • Loose connector
  • No voltage to the solenoid
  • Solenoid O-ring failure
  • No PCM signal to the solenoid
1-2 Shift Valve (314) Stuck
PCM Failed
Check the PCM for current DTCs.
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