Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > Engine Tech Forum > 6-Cylinder Tech > 3.0 Vulcan Tech
Forgot Password? Join Us!


Reply
 
LinkBack Thread Tools Search this Thread

  #1  
Old 11-22-2011, 05:42 PM
Ford Ranger Owner
 
Join Date: Jul 2011
Posts: 64
Default flex fuel sensor

I have recently been having very poor gas milage with my ranger around 10-11 mpg. I was told by a Ford mechanic that the problem was a Flex Fuel sensor. I was wondering where that is located at.. i have a 2001 3.0 liter flex fuel ranger.
Reply With Quote
  #2  
Old 11-22-2011, 05:44 PM
STL STL is offline
...............
 
Join Date: May 2009
Posts: 22,179
Default Re: flex fuel sensor

I believe they have 2 to 3 sensors one around the engine, one along the fuel lines and one at the fuel pump.
__________________
2005 Edge

Reply With Quote
  #3  
Old 11-22-2011, 10:12 PM
Some assembly required...
 
Join Date: Jun 2009
Posts: 886
Default Re: flex fuel sensor

The flex fuel sensor was present only on 1999 and 2000 FFV Rangers. You won't find one on your 2001 FFV.
__________________
2003 FX4 Level II, Supercharged 5.0L V8, Headers, Duals
BW4406 manual transfer case, Aussie Locker, Torsen L/S, 4.10's
Bilstein 7100 rezzies, Cadillac/Mustang rear discs, Duff traction bars
Keypad Entry, Lock LEDs, ABS switch, sway bar discos
Heated seats, Explorer EATC, Trip Computer and consoles

Ford owners' manuals ONLINE, then click "Vehicle Basics"

Last edited by rwenzing; 11-22-2011 at 10:14 PM.
Reply With Quote
  #4  
Old 11-23-2011, 02:42 AM
STL STL is offline
...............
 
Join Date: May 2009
Posts: 22,179
Default Re: flex fuel sensor

Quote:
Originally Posted by rwenzing View Post
The flex fuel sensor was present only on 1999 and 2000 FFV Rangers. You won't find one on your 2001 FFV.
Good call I did not catch that.
__________________
2005 Edge

Reply With Quote
  #5  
Old 11-24-2011, 05:50 PM
Ford Ranger Owner
 
Join Date: Jul 2011
Posts: 64
Default Re: flex fuel sensor

im getting confused. I have been told they do, and don't have them.. It doesn't make sense because o"reillys sells a flex fuel sensor for a 2001 ranger?
Reply With Quote
  #6  
Old 11-24-2011, 06:40 PM
Blinded by the light
 
Join Date: Sep 2009
Posts: 7,674
Send a message via AIM to FireRanger
Default Re: flex fuel sensor

If Bob says it doesn't have one, trust me, it doesn't.
__________________
(Formerly)
FireRanger
2003 Edge 4.0 4wd

How to: Aux light wiring, relays, & fuses
Info: 300+ intake threads here on FRF
Info: HID Projectors
How To: NO HEAT Troubleshooting Guide
Reply With Quote
  #7  
Old 11-24-2011, 07:01 PM
Ford Ranger Owner
 
Join Date: Jul 2011
Posts: 64
Default Re: flex fuel sensor

Quote:
Originally Posted by FireRanger View Post
If Bob says it doesn't have one, trust me, it doesn't.
ok, back to the drawing board i guess on why my ranger is a POS.
Reply With Quote
  #8  
Old 11-25-2011, 05:47 PM
Ford Ranger Owner
 
Join Date: Jul 2011
Posts: 64
Default Re: flex fuel sensor

what part would read the amount of alcohol in the gasoline then?
Reply With Quote
  #9  
Old 11-26-2011, 11:57 AM
Some assembly required...
 
Join Date: Jun 2009
Posts: 886
Default Re: flex fuel sensor

Quote:
Originally Posted by ranger0130 View Post
what part would read the amount of alcohol in the gasoline then?
It's hard to find any documentation on this but here's my understanding of how it works for 2001~2003 FFV Rangers:

Whenever the Fuel Level Input increases, the PCM assumes that a refueling event has occurred. The PCM strategy then looks to the oxygen sensors for a lambse shift that would indicate a fuel composition change. If it sees a shift, it then readjusts the air/fuel ratio to bring it back to stoichiometric for whatever gasoline/alcohal mix is present.

So, the short answer is that there is no specific part that measures fuel composition only.


Quote:
Originally Posted by ranger0130 View Post
I have recently been having very poor gas milage with my ranger around 10-11 mpg. I was told by a Ford mechanic that the problem was a Flex Fuel sensor.
I would check for stuff that could affect any late model Ranger, FFV or not. These might include things like a dirty MAF sensor, incorrect fuel pressure, dragging brakes, restricted exhaust, failed oxygen sensors, etc.

If you have a check engine light, have the code read to give you a starting point.

And, OBTW, if you are running a high percentage of ethanol, your mileage WILL drop significantly because ethanol only has about 65% of the energy content of an equivalent volume of gasoline.
__________________
2003 FX4 Level II, Supercharged 5.0L V8, Headers, Duals
BW4406 manual transfer case, Aussie Locker, Torsen L/S, 4.10's
Bilstein 7100 rezzies, Cadillac/Mustang rear discs, Duff traction bars
Keypad Entry, Lock LEDs, ABS switch, sway bar discos
Heated seats, Explorer EATC, Trip Computer and consoles

Ford owners' manuals ONLINE, then click "Vehicle Basics"
Reply With Quote
  #10  
Old 11-26-2011, 12:17 PM
Ford Ranger Owner
 
Join Date: Jul 2011
Posts: 64
Default Re: flex fuel sensor

The one of those i am not sure about is the oxygen sensors. My boss looked at the readings on the scanner and he didn't blink an eye about it. :/ I'm just about to "peddle" this turd so i am free of its problems. The gas around here is either 10 or 15 percent ethanol i believe.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Flex Fuel Sensor Problem therabidrogue Electrical Tech 7 09-10-2012 05:20 PM
flex fuel? huffa12 General Ford Ranger Discussion 5 07-08-2011 10:29 AM
Alternative Fuel Flex fuel & Others biugueits General Ford Ranger Discussion 3 04-20-2011 09:09 PM
Flex fuel Dang General Ford Ranger Discussion 1 01-08-2011 11:16 PM
Help with my '99 Flex Fuel Brizane 3.0 Vulcan Tech 6 08-19-2010 06:36 PM



Search Engine Friendly URLs by vBSEO 3.6.0 ©2011, Crawlability, Inc.