Super Duty & Heavy Duty1999 to current Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
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On the way home from work, my engine started to lope, miss, and carry on like I got a bad tank of gas. (I did just fill up yesterday) Anyway like I was saying; every time I got heavy on the pedal it would act up. If I eased on it, it seemed to be ok, except climbing hills. Try pulling out into traffic moving around 55mph, and barely touching the gas with a manual trans. (Pretty tough)
Made it to a friends garage, no idiot lights came on, and no codes on his scanner. It did see that it ran rough around 2200-2500 rpm on the way there. searching thru all the fancy things on his scanner, he came up on the maf sensor and ran the test. (still no idiot lights or codes)
When excelerating slowly the numbers slowly climbed but when he got to around 2000+ rpm the #'s started to jump all around.
He said " there's your prob." kewl... only a maf sensor...huh $200 for a new one. had to order one knowone keeps them around I guess. Drive home taking it easy and now it dosent even want to idle smooth?????
What I'm getting at is should I go with the sensor or am I barking up the wrong tree?
Oh yeah I did just put a new k&n air filter in last week.
I have heard many people talk about the K&N's like that as well. I have run them since 1993 in every truck and minivan (yep, you just look for a car with the same engine and you get them perfectly fitted) and never had a problem.
The problem I have heard, and always avoided, was over-oiling of the filter. I did once get a new filter out of the box and thought is was too much oil. I put it in and checked the housing and sensor a few months later and it was indeed gumming the stuff up.
I cleaned the tubes/intake and I sprayed the sensor with contact cleaner and let it air dry, did not touch it with anything, worked great. I guess they have the MAF cleaner now since so many people were using the wrong stuff to clean it with, like parts cleaner.
2011 F350 6.7L FX4 CC Lariat Wht/Gold, Chrome Pkg, Bilsteins, NITTO Grapplers 295/60/20 & 325/60/18 on Moto Metal 961's (pulling & winter set), Westin Bull Bar, 2" Level, H&S, 5" Pipes, Flowmaster
Christmas wish list: 2015 Ford Turbo, CP4 stroked pump, and FASS lift pump!!!!
02 F250 V10 4x4 Headers,Flowmaster,SCTuner (SOLD)
99 F250 V10 4x4 headers, Dual Flowmasters (SOLD)
Well... spent the $$, got a new sensor and put it in, still ran CRAPPY. Decided to disconnect the neg. bat. term. for a few min. to reset everything. Ran a little better.
wondered if it was bad gas? so I put some Lucas feul treatment in and brought it to work today. Not sure what it was but it startet to run better the more I ran it so.....?
We'll see on the way home.
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