Important: Take care when handling the MAF. Do not dent, puncture, or otherwise damage the Honeycell located at the air inlet end of the MAF. Do not touch the sensing elements or allow anything (including cleaning 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.
Important:: Embossed arrows on MAF sensor indicate proper air flow direction and must point toward the engine.