Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1984BLAZER FULL SIZE V8-350 5.7LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSBAROMETRIC PRESSURE SENSORSERVICE AND REPAIR
1984 Chevrolet Blazer Full Size V8-350 5.7L
Barometric Pressure Sensor: Service and Repair
1984 Chevrolet Blazer Full Size V8-350 5.7LSECTION 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.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.