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Chevy Truck
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1990
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C 2500 Truck 2WD V8-305 5.0L
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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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Service and Repair
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Procedures
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Detent Switch-Adjust
Detent Switch-Adjust
Detent downshifts are controlled by the ECM. A detent switch is located inside the
Vacuum Regulator Valve
on vehicles equipped with diesel engines.