OEM 2003 Chevrolet Astro Mass Air Flow Sensor

2003 Chevrolet Astro Mass Air Flow Sensor Parts and Q&A

• Q: How to replace the Mass Air Flow Sensor on 2003 Chevrolet Astro?

  A: The replacement process for Mass Air Flow Sensor (MAF) begins by first shutting off the ignition while removing the MAF sensor harness connector. The retainer clips holding the air cleaner cover should be released first before removing the air outlet duct from the MAF sensor by loosening the clamp. Handle MAF sensor with great care to prevent dropping since drops can create damage while avoiding contact of both the screen at the air inlet end along with the sensing elements. Install the MAF sensor with a small amount of soap solution but keep solvents and lubricants restricted from the sensing elements. Detach the air cleaner cover from the MAF sensor location at the front assembly through clamp loosening. The installation process requires hookup of the MAF sensor to the air cleaner cover through tightening the hose clamp to 4 N.m (35 lb in) torque while facing the flow arrow in the direction away from the air cleaner. Tighten the hose clamp holding the air cleaner outlet duct to the MAF sensor until it reaches 4 N.m (35 lb in). The MAF sensor installation requires securing the air cleaner cover retainer clips followed by connector harness attachment.