Go Back   Ford Truck Enthusiasts Forums > Super Duty/Heavy Duty > Super Duty & Heavy Duty
Sign in using an external account
Register Forgot Password?


Super Duty & Heavy Duty 1999 to current Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines SPONSORED BY:

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 10-15-2010, 08:51 PM
Rick03F250's Avatar
Rick03F250 Rick03F250 is offline
Senior User
 
Join Date: Sep 2010
Location: Preston co. WV
Posts: 162
Rick03F250 is starting off with a positive reputation.
Unhappy maf sensor or not?

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.

HELP!!!
Reply With Quote
  #2  
Old 10-15-2010, 09:47 PM
redford's Avatar
redford redford is offline
Moderator
 
Join Date: Sep 2000
Location: Hooterville WI
Posts: 15,688
redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.redford has a spectacular reputation.
First, try a quick run without the K&N filter, but I doubt that is the problem.

My old F-150 acted the same way, complete with no codes. Turned out to be a clogged catalytic converter. Disconnect your exhaust at the Y-pipe and go for a quick spin to test.
__________________

2007 F-250 Super Cab Short Bed 4x4 XLT Sport Package 5.4L 3.73LS Tow Command

Stuart
Retired Master Sergeant

FTE Guidelines
Reply With Quote
  #3  
Old 10-15-2010, 09:51 PM
Rick03F250's Avatar
Rick03F250 Rick03F250 is offline
Senior User
 
Join Date: Sep 2010
Location: Preston co. WV
Posts: 162
Rick03F250 is starting off with a positive reputation.
Been thru the converter prob. already last year. It will never give me problems again. If you know what I mean.
Reply With Quote
  #4  
Old 10-15-2010, 09:53 PM
dchamberlain's Avatar
dchamberlain dchamberlain is offline
Post Fiend
 
Join Date: Sep 2007
Location: Lake County, Oregon
Posts: 5,659
dchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputation
What engine?

I'd take the K&N off and put the stock intake back on, clean the MAF with MAF cleaner and see what happens, before I spent money on a new MAF.
__________________
David Chamberlain
2004 F-250 SD, 4x4 FX4, 6.0L PSD

Oregon Chapter Member:
To join the Oregon Chapter, click HERE
Reply With Quote
  #5  
Old 10-15-2010, 09:58 PM
Kajtek1's Avatar
Kajtek1 Kajtek1 is offline
Postmaster
 
Join Date: Apr 2006
Location: CA Bay Area
Posts: 3,524
Kajtek1 has a very good reputation on FTE.Kajtek1 has a very good reputation on FTE.Kajtek1 has a very good reputation on FTE.
Second name for "K&N" is "MAF killers"
One way to confirm bad MAF is to pull the plug on it. The engine should go into default mode, that should give you at least 80% of normal power.
Reply With Quote
  #6  
Old 10-16-2010, 08:35 AM
Rick03F250's Avatar
Rick03F250 Rick03F250 is offline
Senior User
 
Join Date: Sep 2010
Location: Preston co. WV
Posts: 162
Rick03F250 is starting off with a positive reputation.
5.4L ENGINE DC
It's all oem intake just a K&N filter in the oe can
Reply With Quote
  #7  
Old 10-16-2010, 08:49 AM
FORDTUF1's Avatar
FORDTUF1 FORDTUF1 is offline
Elder User
 
Join Date: Mar 2007
Location: at the truck pulls
Posts: 840
FORDTUF1 is gaining momentum as a positive member of FTE.
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 Terra Grapplers 295/60/20, 2" Level Kit, H&S, Deleted, 5" Pipes, Flowmaster Hushpower
02 F250 V10 4x4 Headers,Flowmaster,K&N,SCT Tuner (SOLD)
99 F250 V10 4x4 headers, Dual Flowmaster 40's,K&N (SOLD)
07 Wildcat 36' 5'er ~ 11,000 lb house on wheels
Reply With Quote
  #8  
Old 10-16-2010, 09:06 AM
few2many's Avatar
few2many few2many is offline
Junior User
 
Join Date: Aug 2010
Posts: 76
few2many is starting off with a positive reputation.
Quote:
Originally Posted by FORDTUF1 View Post
I guess they have the MAF cleaner now since so many people were using the wrong stuff to clean it with, like parts cleaner.
What about brakleen or carb cleaner?
Reply With Quote
  #9  
Old 10-16-2010, 10:22 AM
cartmanea cartmanea is offline
Post Fiend
 
Join Date: Jun 2007
Location: Corvallis, OR
Posts: 6,736
cartmanea is a name known to allcartmanea is a name known to allcartmanea is a name known to allcartmanea is a name known to allcartmanea is a name known to allcartmanea is a name known to all
ONLY USE MAF CLEANER. BrakeKleen and CarbCleaner will damage the plastic components.
__________________
2012 F-150 XLT Ecoboost SuperCrew 6.5' 4x4
Reply With Quote
  #10  
Old 10-18-2010, 02:29 PM
Rick03F250's Avatar
Rick03F250 Rick03F250 is offline
Senior User
 
Join Date: Sep 2010
Location: Preston co. WV
Posts: 162
Rick03F250 is starting off with a positive reputation.
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.
Reply With Quote
Old 10-18-2010, 02:29 PM
Reply

Go Back   Ford Truck Enthusiasts Forums > Super Duty/Heavy Duty > Super Duty & Heavy Duty

Tags
2002, 2003, 60, 73, air, bad, e150, f250, flow, ford, location, maf, mass, powerstroke, sensor

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump



All times are GMT -5. The time now is 11:57 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup