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Home >> Eagle >> 1982 >> Eagle L4-151 2.5L >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Exhaust Gas Recirculation >> EGR Temperature Sensor >> Description and Operation >> High Temperature Vacuum Signal Modulator
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High Temperature Vacuum Signal Modulator

OPERATION
The modulator opens when the underhood air temperature reaches 115° F and causes a weakened vacuum signal to the EGR valve. As a result, the amount of exhaust gas being recirculated is decreased.
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