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2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 or 4.2 V6 engine
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Old 02-13-2008, 11:04 AM
topwhop topwhop is offline
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2004 f150 5.4L mass air flow sensor

Has any one ever changed or cleaned the mass air flow sensor . is it possible o clean it?
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Old 02-13-2008, 11:25 AM
JimTex JimTex is offline
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Sure, cleaned mine twice in the 64,000 miles. It's easy.
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Old 02-13-2008, 11:30 AM
JimTex JimTex is offline
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It is on the side of the intake going into the throttle body.

1. Pull up or squeeze the red retainer clip and unplg the wire.
2. Remove two torx screws and pull out the unit.
3. Spray the little wires with MAF or Electronic cleaner, available at auto parts stores.
4. let air dry for a couple of minutes. DO NOT TOUCH THE LITTLE WIRES!
5. Reverse to install.


Takes about 5 minutes. I think the spray cleaner was about $10 and will last forever.

Last edited by JimTex; 02-13-2008 at 11:36 AM.
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Old 02-13-2008, 11:34 AM
Twinsdad98 Twinsdad98 is offline
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As Jim states, it's very easy. I just did mine this past month at 85K.
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2004 Black Lariat F150 Supercrew 4x4
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Old 02-13-2008, 12:26 PM
Brian429 Brian429 is offline
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Could a dirty MAF be causing decreased MPG?
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Old 02-13-2008, 02:23 PM
JimTex JimTex is offline
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Quote:
Originally Posted by Brian429
Could a dirty MAF be causing decreased MPG?
yes, it could, but so could a dirty fuel filter, dirty air filter, or it could be the 10% ethanol, or it could be plugs beginning to wear.

I know when the ethanol hit here, I lost about 1 mpg immeddiately.
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Old 02-13-2008, 04:37 PM
belandd belandd is offline
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Maf

Book says to clean it with denatured alcohol ONLY!
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Old 02-13-2008, 07:45 PM
bansheeduner bansheeduner is offline
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is it worth it to buy a better mass airflow sensor jw
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Old 02-13-2008, 07:45 PM
 
 
 
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