Cleaning the Ford MAF sensor (the type that'south within the round air filter canister) is simple and easy. Y'all don't even take to take it out of the air filter canister to exercise information technology! This article volition show you how.

This article only deals with cleaning the MAF sensor, if yous need to test this type of ford mass air flow (MAF) sensor click here: How To Test The FORD MAF 4.2L, 4.6L, 5.4L Round Canister Type Air Filter Assembly MAF.

En Español You can find this tutorial in Castilian hither: Cómo Limpiar El Sensor MAF (Ford 4.2L, 4.6L, v.4L) (at: autotecnico-online.com).

Symptoms Of A Dirty Ford MAF Sensor

The most common symptom experienced when the MAF sensor is dirty is that the engine bogs down when you give it gas. This is near noticeable when y'all're accelerating the vehicle downward the road.

Other symptoms y'all'll see are:

  1. Bank check engine calorie-free illuminated by one or both of the following codes:
    • P0171.
    • P0174.
  2. Your vehicle'southward gas mileage is going downwardly the drain.
  3. Won't pass your state'southward yearly emissions test.

There are several conditions that can cause the MAF sensor to become dirty. Let's explore them a fleck since knowing this volition assistance you to avoid a echo of the problem.

  • Air filter is missing.
  • Air filter is torn or missing pieces.
  • Air filter is not properly set in place in its assembly.
  • Air filter box assembly is broken, letting in unfiltered air.

If any of the in a higher place employ to your auto or truck, your MAF sensor'southward hot-wires are probably dirty and in need of cleaning.

What Do I Utilize To Clean The MAF Sensor?

How To Test The 4.6L, 5.4L Ford Throttle Position Sensor (TPS)

Nosotros can't just utilise any blazon of solvent to make clean the MAF sensor with. Hither are a couple of very important guidelines on what to use:

  1. An electronics spray cleaner can be used.
    • You can buy it at your local auto parts store (Motorcar Zone, Pepboys, O'Reilly, etc).
    • Yous can buy information technology at your local electronics store (Radio Shack, Fry's, etc).
  2. Or you can buy a MAF sensor cleaning spray. Yes, in that location is ane designed just for cleaning MAF sensors.
    • This cleaner is fabricated by CRC Industries and its part number is: 05110.
    • You can buy it at your local auto parts store (Motorcar Zone, Pepboys, O'Reilly, etc).
  3. Don't use carburetor or brake clean spray or gasoline.
    • These solvents will leave a balance on the wires and this residual volition concenter more than clay and contamination.
    • Not to mention the harsh solvent can harm the MAF sensor'due south electronics.
  4. Also, don't attempt to physically clean the sensor with anything (like a cotton swab) or yous may break the wires.