cciyu MAF 3L7U12B579AA-Z Mass Air Flow Sensor Replacement fits For 2003-2004 for Ford Expedition 4.6L,2003-2004 for Ford Expedition 5.4L,2003-2004 for Lincoln Navigator 5.4L

<b>HOW TO JUDGE THE AIR FLOW METER HAS FAILED</b><br>Detect engine air flow meter data flow, out of range. The fuel consumption is high, the acceleration is weak, and the exhaust pipe emits black smoke. According to the data flow combined with the fault phenomenon, the air flow meter is judged to be faulty.<br>When the acceleration is increased, the pulse width of the fuel is increased, but the increase of the air flow rate is basically absent, so that the air-fuel ratio is not suitable, and the speed is inevitably accelerated.<br><b>FITMENT:</b><br>2003-2004 for Ford Expedition 4.6L<br>2003-2004 for Ford Expedition 5.4L<br>2003-2004 for Lincoln Navigator 5.4L<br><br><b>Package Including</b><br>1 PC MAF

• FITMENT - MAF fit for 2003-2004 for Ford Expedition 4.6L,2003-2004 for Ford Expedition 5.4L,2003-2004 for Lincoln Navigator 5.4L
• REPLACES OE - SU8755-Z
• FUNCTION - It can effectively solve the problem of Acceleration difference, Idling instability and Exhaust pipe smoke for your car. Let you drive easily and joyfully.Before purchasing this part, check the compatibility information or call your local dealer to verify the correct OEM part number and clean out the air box and replace the air filter before installing the MAF Meter, or the Code and Check Engine Light may keep showing even if you replace a new MAF
• Tips to one - If it works well at first but months later can not work,Please clean the inside of the duct and the air filter; If the Engine code with P0100 or P0101,please check the air flow meter plug for any contact failure and measure it with a multimeter;
• Tips to two - When the Engine code with P0102, maybe the air duct in the car is too dirty,and dust enters the sensor head, which weakens the signal strength; If everthing is alright but the car is not stable at idle speed, and the throttle is weak when driving at low speed, please check the valve and estimate the leak. It must be sealed.