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Home >> Chevrolet >> 1982 >> Hi-Cube Standard Trans >> Repair and Diagnosis >> Engine Mechanical >> Auxiliary Emission Control Systems >> Exhaust Emission Systems >> Description >> Throttle Return Control (TRC)

Throttle Return Control (TRC)

Used on all Heavy Duty Emission models. Upon deceleration, system opens throttle slightly, thus reducing hydrocarbons during coastdown.

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