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.
2007 Chevrolet Impala V6-3.9LFACTORY OEM SERVICE PROCEDURE
Barometric Pressure Sensor: Service and Repair
Barometric Pressure Sensor Replacement
Removal Procedure
1. Remove the intake manifold cover.
2. Disconnect the engine wiring harness electrical connector from the barometric (BARO) pressure sensor.
3. Remove the BARO sensor bolt.
4. Remove the BARO sensor.
Installation Procedure
1. Lubricate the BARO sensor O-ring seal with clean engine oil.
2. Install the BARO sensor to the bracket.
Notice: Refer to Fastener Notice.
3. Install the BARO sensor bolt.
Tighten the bolt to 10 N.m (89 lb in).
4. Connect the engine wiring harness electrical connector to the BARO sensor.
5. Install the intake manifold cover.
Factory Service Tools
Use the Manual With the Right Hardware
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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.