Go Back   Ford Truck Enthusiasts Forums > Regional Chapters > New England Region > New Hampshire Chapter
Sign in using an external account
Register Forgot Password?


New Hampshire Chapter Join Chapter Leader: 7283-F250

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 01-29-2006, 05:17 PM
frdtruc1 frdtruc1 is offline
Senior User
 
Join Date: Jan 2005
Location: hebron, ct
Posts: 155
frdtruc1 is starting off with a positive reputation.
10 mpg

Previously posted in another forum, but so many errors and typos, I thought I would repost here and try for a response from the locals.
Here is my dilema. Quite simply, I seem to be getting lousy gas mileage. After a 300 mi round trip to So Maine yesterday, I determined I am only getting 10 mpg.
This eng is a newer rebuilt 4.9, (done in 03) with less than 10,000 miles. It is in an 89 F150, sb. 5spd, 4wd. (Rear axle ratio is 3.55) 31x10.5x15 tires.
I don't drive this hard at all. Avg 65 mgh, all highway, Am I expecting too much or should I be getting better mileage here? Is there an easy way to pin this down? Plugs, wires etc. Any advice will be appreciated.

Last edited by frdtruc1; 01-29-2006 at 05:55 PM. Reason: Omitted axle ratio.
Reply With Quote
  #2  
Old 01-29-2006, 07:46 PM
sglaine sglaine is offline
Posting Legend
 
Join Date: Feb 2004
Location: Where Critters Are Free
Posts: 32,025
sglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant future
How about the air filter and fuel filter. When were they replaced last?
Reply With Quote
  #3  
Old 01-29-2006, 09:01 PM
frdtruc1 frdtruc1 is offline
Senior User
 
Join Date: Jan 2005
Location: hebron, ct
Posts: 155
frdtruc1 is starting off with a positive reputation.
Its been almost 5,000 since I changed the air filter. I have never changed the fuel filter. I plan to change both as well as invest in new plugs and wires next week. It's been running fine, other than the lousy mileage. I've also checked for leaks and don't smell any oder of gas, but not ruling that out either.
Reply With Quote
  #4  
Old 01-31-2006, 09:06 PM
matt h matt h is offline
Junior User
 
Join Date: Jul 2005
Posts: 97
matt h is starting off with a positive reputation.
10 mpg

hey frank,matt h here.was reading ur thread and it made me remember back when i had a 1980 gmc shortbed.i turned that thing into an offroad monster.early on before any real work,the first thing i did was put on some used 31's and almost instantly my mileage went down the tubes.you wouldnt think so cuz their really not that big,but tis true.also my speedo went off by 7mph.if possible experiment with smaller stock size tires and see if it gets better,curious to hear if tires r problem.looked up ur gallery pics,nice truck!good luck matt h
Reply With Quote
  #5  
Old 02-01-2006, 04:48 PM
frdtruc1 frdtruc1 is offline
Senior User
 
Join Date: Jan 2005
Location: hebron, ct
Posts: 155
frdtruc1 is starting off with a positive reputation.
I just arrainged to drop it off at the local garage in town. He is very honest and reliable. I have him checking the codes for a problem sensor. This weekend the truck will get new wires/plugs/air filter for starters. Need them anyway. Will let you know Tuesday how I fared. I know I can't go on getting 10 mpg with the price of gas around here. Hopefully it not just tires. I am guessing its the Oxy. sensor. See if I'm right...Frank
Reply With Quote
  #6  
Old 02-01-2006, 11:27 PM
LB3711's Avatar
LB3711 LB3711 is offline
Senior User
 
Join Date: Oct 2003
Location: Trumbull, CT
Posts: 131
LB3711 is starting off with a positive reputation.
find a spot that has a measured Mile and see how long it takes ad 60mph to do it. If it takes you a minute then the tires are ok. if not then your off. If it takes you less then a minute then your going faster if more than your going slower. Or just find someone else and have then go a set speed and go the same and then that will tell you if your off or not
__________________
98 Ford Ranger XLT Super Cab, 4.0L, 4x4
Click here to see my Truck
Reply With Quote
  #7  
Old 02-05-2006, 09:17 AM
matt h matt h is offline
Junior User
 
Join Date: Jul 2005
Posts: 97
matt h is starting off with a positive reputation.
damn ur good!lol matt h
Reply With Quote
  #8  
Old 02-05-2006, 04:58 PM
LB3711's Avatar
LB3711 LB3711 is offline
Senior User
 
Join Date: Oct 2003
Location: Trumbull, CT
Posts: 131
LB3711 is starting off with a positive reputation.
I been doin this forum stuff since 01 and I know a decent amount and been playing with my ranger alot more lately
__________________
98 Ford Ranger XLT Super Cab, 4.0L, 4x4
Click here to see my Truck
Reply With Quote
  #9  
Old 02-20-2006, 09:36 PM
frdtruc1 frdtruc1 is offline
Senior User
 
Join Date: Jan 2005
Location: hebron, ct
Posts: 155
frdtruc1 is starting off with a positive reputation.
To Matt and others who responded re low gas mileage. I am changing the 02 sensor. This based on putting the engine on a scope. Too old of a truck to have comp codes read. Result, needs new 02 sensor. Everything else checks out. I did put smaller tires on last week and have not driven it to determine if mileage affected. Will probably check that later this week. Hard to believe just changing the 02 sensor is enough to make a diff. but I'll let you guys know. Will be a while but will respond.
Reply With Quote
  #10  
Old 02-21-2006, 09:27 AM
sglaine sglaine is offline
Posting Legend
 
Join Date: Feb 2004
Location: Where Critters Are Free
Posts: 32,025
sglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant futuresglaine has a brilliant future
Quote:
Originally Posted by frdtruc1
To Matt and others who responded re low gas mileage. I am changing the 02 sensor. This based on putting the engine on a scope. Too old of a truck to have comp codes read. Result, needs new 02 sensor. Everything else checks out. I did put smaller tires on last week and have not driven it to determine if mileage affected. Will probably check that later this week. Hard to believe just changing the 02 sensor is enough to make a diff. but I'll let you guys know. Will be a while but will respond.
You do have a very good point there.
Reply With Quote
Old 02-21-2006, 09:27 AM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
V-10 gas mileage bcoz22 Modular V10 (6.8l) 52 06-07-2011 07:25 PM
04 5.4 4x4 SuperCrew Gas Mileage SUCKS!!! rwdfan 2004 - 2008 F150 14 11-07-2010 07:54 AM
gas mileage lougil Super Duty & Heavy Duty 17 01-18-2008 07:46 PM
Gas Mileage V10? FordtruckBoy13 Modular V10 (6.8l) 71 10-27-2006 02:39 PM
1995 F-150 4X4 Gas MPG? Dustin44 1987 - 1996 F150 & Larger F-Series Trucks 28 12-12-2000 06:31 PM


Go Back   Ford Truck Enthusiasts Forums > Regional Chapters > New England Region > New Hampshire Chapter

Tags
10, 10mpg, 300, 40l, ford, lb3711, mpg

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »





All times are GMT -5. The time now is 03:46 PM.


Powered by vBulletin® Version 3.8.7 AC1
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. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup