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Home >> GMC >> 2007 >> Yukon Denali >> Repair and Diagnosis >> External Pages >> Different car >> Section 895 (Automatic Transmission - 4L80-E/4L85-E - Service, Diagnosis & Troubleshooting) >> First and Fourth Gear Only - D4

First and Fourth Gear Only - D4

WARNING: This page is about a different car, the 2007 GMC Yukon XL and 2007 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
First and Fourth Gear Only - D4

Checks Cause
1-2 Solenoid (313)
  • Stuck On
  • Pinched wire to ground
1-2 Shift Valve (314) Stuck
PCM Failed
Check the PCM for current DTCs.
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