Cleaned MAF, WHAT A DIFFERENCE! | Ford Explorer Forums

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Cleaned MAF, WHAT A DIFFERENCE!

429CJ-3X2

Elite Explorer
Joined
November 6, 2009
Messages
1,753
Reaction score
498
City, State
Des Moines, Iowa
Year, Model & Trim Level
'01,'02, '04 Sport Tracs,
My '01 (4.10 LS) was getting horrible mileage, took more pressure on the accelerator than the '02 (3.73), and the transmission was staying in each gear too long - shifts were fine, just later than they should have been. My '02 gets 15-16 mpg in normal daily driving, mostly around town with a little bit of highway. Best of 20 mpg on the highway. The '01 got 12.3 on the last tank. Cleaned the MAF, left the battery unhooked for a half hour or so, and noticed an immediate difference! I could drive with minimal pressure on the gas, and shift points were where they should be. Just filled up - 15.3 mpg since cleaning the MAF! And that's all I did, and it didn't look that bad. The filaments weren't shiny, but didn't have a bunch of gunk on them. +3 mpg and noticeably better driving manners.

(Mileage figures based solely on odometer and gas pump, so not 100% accurate, but good for comparison. I'm very consistent in how I fill up, and both fill ups were at the same station. Not sure if it was the same pump.)
 






Nice! Mine seems to run fine but I think I'll do this just for the heck of it. Thanks for posting.
 






Wow..great post. Have read many posts re.cleaning MAF, but will now for sure put this on the list of things to do .Thanks
 






I did this also on the 2001 I recently acquired with 256,000 miles on it.

I have not had a chance to drive it yet, but the idle is noticeably smoother.
 






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