Express 1/2 Ton Van V8-305 5.0L VIN M SFI (1998)
Mass Air Flow (MAF) Sensor: Service and Repair
Diagnostic Chart
CAUTION: Take care when handling the Mass Air Flow (MAF). Do Not dent, puncture, or otherwise damage the honeywell located at the air inlet end
of the MAF. Do Not touch the sensing elements or allow anything (including solvents and lubricants) to come in contact with them. A small amount of
GM lubricant (P/N 99855406) may be used on the air duct only to aid in installation. Do Not drop or roughly handle the MAF.
REMOVAL PROCEDURE
1. Disconnect the 3 wire electrical connector.
2. Loosen the clamp on the intake duct.
3. Carefully remove the MAF sensor.
INSTALLATION PROCEDURE
1. Install the MAF sensor.
2. Install the intake ducts.
3. Tighten the clamp.
4. Connect the electrical connector.
