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Home >> Mercury >> 1986 >> Cougar/XR7 L4-140 2.3L SOHC Turbo >> Repair and Diagnosis >> Sensors and Switches >> Sensors and Switches - Powertrain Management >> Sensors and Switches - Fuel Delivery and Air Induction >> Overboost Switch >> Description and Operation

Overboost Switch: Description and Operation




The switch assembly has a pressure switch to trigger the over boost lamp (red) and a buzzer on the instrument panel.





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