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Mass Air Menstruation Sensor (MAF) Cleaning

Updated: December. 07, 2018

You lot can clean rather than replace the expensive mass air menstruation sensor

MAF sensor cleaner mass airflow sensor Family Handyman

Clean your MAF (Mass Air Menstruum) sensor when information technology's muddy rather than supercede this $300 part. It's quick and easy with some handy tools and a spray.

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Clean Your Mass Air Flow Sensor

mass air flow sensor

Make clean the MAF sensor

Spray 10 to 15 spurts of the (MAF) mass air flow sensor cleaner onto the wire or plate.

What is a Mass Air Flow (MAF) sensor? A MAF sensor monitors the temperature and weight of air inbound your engine. Your onboard estimator needs that information to calculate the right amount of fuel for all engine operating weather condition.

The sensor works by heating a delicate platinum wire or plate and measuring the current required to keep it at a abiding temperature while air blows past it. Over fourth dimension, grit and oil particles stick to the hot wire/plate and bake on. Eventually, those baked-on particles insulate the wire/plate from the airstream. This causes starting, idling and acceleration problems, too as poor gas mileage.

Carmakers like Ford and Chevrolet recommend that you supervene upon the MAF sensor ($300) at that betoken. But if you clean your motorcar's MAF sensor regularly, you can avoid that $300 repair and keep your engine running at top efficiency. The mass air flow cleaner just costs about $vii! Nosotros recommend that you clean the MAF sensor every time you change your air filter. Hither's how:

Before going to the store, pull off the air duct between the air filter box and the throttle body to see how the MAF sensor is anchored. If you run across Torx screws, buy a Torx tool and a can of CRC Mass Air Flow Sensor Cleaner. Don't use any other cleaners; they tin ruin the MAF. Everything y'all demand is available at CarQuest, Accelerate and O'Reilly auto parts stores.

With the mass air flow cleaner and tools in mitt, locate the MAF sensor in the air duct between the air filter box and the throttle body. Earlier you remove the sensor, use a camera to record the sensor setup and connections for reference afterwards. Carefully remove the sensor from the air duct and disconnect the electrical connector.

Spray ten to 15 spurts of the mass air blossom cleaner onto the wire or plate. Don't scrub the parts; you may break the wire or damage the plate. Allow the MAF sensor to dry completely before reinstalling information technology in the air duct.