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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2002EXPRESS 1 TON VAN V8-8.1L VIN GREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSAIR FLOW METER/SENSORSERVICE AND REPAIR
2002 Chevrolet Express 1 Ton Van V8-8.1L VIN G
Air Flow Meter/Sensor: Service and Repair
2002 Chevrolet Express 1 Ton Van V8-8.1L VIN GSECTION Service and Repair
MASS AIR FLOW (MAF) SENSOR
REMOVAL PROCEDURE
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
NOTICE:
^ Handle the MAF sensor carefully.
^ Do not drop the MAF sensor in order to prevent damage to the MAF sensor.
^ Do not damage the screen located on the air inlet end of the MAF.
^ Do not touch the sensing elements.
^ Do not allow solvents and lubricants to come in contact with the sensing elements.
^ Use a small amount of a soap based solution in order to aid in the installation.
1. Disconnect the negative battery cable.
2. Disconnect the mass air flow (MAF) sensor (5) harness connector.
3. Loosen the clamps on the MAF sensor.
4. Carefully remove the MAF sensor from the air intake ducts.
INSTALLATION PROCEDURE
IMPORTANT: Ensure that the MAF sensor flow arrows point away from the air cleaner assembly.
1. Install the MAF sensor into the air intake ducts.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Tighten the clamps on the MAF sensor.
Tighten
Tighten the clamps to 4 N.m (35 lb in).
3. Connect the MAF sensor (5) harness connector.
4. Connect the negative battery cable.
REMOVAL PROCEDURE
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
NOTICE:
^ Handle the MAF sensor carefully.
^ Do not drop the MAF sensor in order to prevent damage to the MAF sensor.
^ Do not damage the screen located on the air inlet end of the MAF.
^ Do not touch the sensing elements.
^ Do not allow solvents and lubricants to come in contact with the sensing elements.
^ Use a small amount of a soap based solution in order to aid in the installation.
1. Disconnect the negative battery cable.
2. Disconnect the mass air flow (MAF) sensor (5) harness connector.
3. Loosen the clamps on the MAF sensor.
4. Carefully remove the MAF sensor from the air intake ducts.
INSTALLATION PROCEDURE
IMPORTANT: Ensure that the MAF sensor flow arrows point away from the air cleaner assembly.
1. Install the MAF sensor into the air intake ducts.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Tighten the clamps on the MAF sensor.
Tighten
Tighten the clamps to 4 N.m (35 lb in).
3. Connect the MAF sensor (5) harness connector.
4. Connect the negative battery cable.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.