Operation CHARM
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Chevy Truck
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1991
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Suburban 1/2 Ton 2WD V8-350 5.7L
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Repair and Diagnosis
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Transmission and Drivetrain
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Automatic Transmission/Transaxle
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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4L80-E Automatic Transmission
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No Reverse
No Reverse
1. Transmission mountings or seals broken or leaking.
2. Rear
band
broken or worn.
3. Rear
band
apply pin or piston to short or binding in case.
4. Low fluid pressure.
5. Direct clutch components worn, jammed, cracked or leaking.