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Section 154 (Automatic Transmission - 4L80-E/4L85-E - Service, Diagnosis & Troubleshooting)
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Harsh Shift D to R
Harsh Shift D to R
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.
Harsh Shift D to R
Checks
Cause
Direct Lube Exhaust
Blocked
Forward Clutch Spring (607)
Not acting
Retainer Ring (616)
Not seated
Checkball Orifice
Plugged