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Home >> GMC Truck >> 1991 >> Syclone V6-262 4.3L Turbo >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> 3L30 (180/180C) Automatic Transmission >> No 2-3 Upshift In D

No 2-3 Upshift In D

1. 2-3 shift valve stuck.

2. Excessive leak in governor pressure circuit.

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