gmc Workshop Repair Guides

GMC Workshop Manuals

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Absolute Pressure Sensor: Service and Repair

The MAP and Vacuum sensors are accessible through the engine compartment. The BARO sensor may be located either in the engine compartment or
strapped to the ECM harness under the dash panel.

Other than checking for loose hoses and electrical connections, the only service required of these sensors is replacement should diagnosis show any
sensors to be faulty.

Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Absolute Pressure Sensor <--> [Barometric Pressure Sensor] > Component Information > Specifications > Page 271

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