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Home >> Chevrolet >> 2005 >> Chevy Express H1500, Van Passenger >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Automatic Transmission - 4L80-E/4L85-E - Service, Diagnosis & Trouble Shooting) >> Troubleshooting >> Harsh Shift D4 to D3, D2, or D1

Harsh Shift D4 to D3, D2, or D1

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Harsh Shift D4 to D3, D2, or D1

Checks Cause
Spring Assembly (506) Not functioning
Checkball Orifice Plugged
Snap Ring (511) Not seated
Scan Tool Shift Adapts Maximum shift adapts