Diesel Data
: Automotive Repair
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Chevy Truck
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1989
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C 3500 Truck 2WD V8-379 6.2L DSL
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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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Description and Operation
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3L80/3L80HD (400/475) Automatic Transmission
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Hydraulic System, Brakes
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Functions of Valves & Hydraulic Control Units
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Detent Valve
Detent Valve
Shifts when oil line is exhausted at end of valve when
detent solenoid
is energized. This directs detent oil to the 1-2 accumulator valve, 1-2 regulator and 2-3 modulator valves, 3-2 valve and the vacuum modulator valve.