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 MANUALSCHEVROLET1999LUMINA V6-3.8L VIN KREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSAIR FLOW METER/SENSORSERVICE AND REPAIR
1999 Chevrolet Lumina V6-3.8L VIN K
Air Flow Meter/Sensor: Service and Repair
1999 Chevrolet Lumina V6-3.8L VIN KSECTION Service and Repair
Mass Air Flow Sensor Replacement
The MAF sensor on this engine is attached to the throttle body assembly.
REMOVAL PROCEDURE
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cable.
2. Disconnect the MAF sensor electrical connector.
3. Remove the screws holding MAF sensor to throttle body.
4. Remove the MAF sensor from the throttle body.
INSTALLATION PROCEDURE
1. Carefully position the MAF sensor to the throttle body.
NOTICE: Refer to Fastener Notice in Service Precautions.
2. Install the screws holding the MAF sensor to the throttle body.
3. Connect the electrical connector.
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
4. Reconnect the negative battery cable.
RENDER: 1.0x
NO RELATED
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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.