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Chevy Truck
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1991
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S10/T10 P/U 4WD V6-173 2.8L
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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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3L30 (180/180C) Automatic Transmission
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Fluid Coming Out of Filler Tube
Fluid Coming Out of Filler Tube
1. High fluid level.
2. Engine coolant in transmission fluid.
3. Clogged external vent.
4. Leak in pump suction circuit.