Horrible mileage on 2002 7.3 - Ford Powerstroke Diesel Forum
User Tag List

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 33 Old 10-07-2010, 05:20 AM Thread Starter
Powerstroke.org Fanatic
 
Join Date: Jul 2010
Posts: 94
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Horrible mileage on 2002 7.3

Well I finally got a truck and am loving it so far, but I am looking for some help on the trucks mileage, the overhead gauge in the truck shows its getting 7.7 miles to the gallon and I know itt cant be getting much better than that.

The truck is a 2002 F250 FX4 with 163,XXX miles on it, it has an 8" lift, 20" wheels and 40" tires, the truck has 4.56 gears and a Cold air intake and an Edge programmer. Now I know the lift and big rims and tires aren't helping me but I thought with the 4.56 gears and the CAI and the programmer that I would still get decent mileage. I would be happy with around 12mpg but I dont think its getting anywhere close to that.

Any input would be appreciated.

I do love this truck though.

Here are some pics











Last edited by wanta7.3; 10-13-2010 at 04:20 PM. Reason: Added pictures
wanta7.3 is offline  
post #2 of 33 Old 10-07-2010, 05:36 AM
Compression Ignition Addict
 
BigKid's Avatar
 
Join Date: Feb 2009
Location: Texas
Posts: 856
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Man that does seem pretty low. Have you had a chance to hand calculate it to know for sure what it is doing?

Excessive idling or doggin it hard?

2013 Platinum
2013 Explorer sport
2011 CTS V
BigKid is offline  
post #3 of 33 Old 10-07-2010, 05:42 AM
Compression Ignition Addict
 
atvrider93's Avatar
 
Join Date: May 2010
Location: Raleigh, NC
Posts: 3,835
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Thanks: 12
Thanked 12 Times in 12 Posts
Feedback Score: 0 reviews
you might want to think about a different programmer. Those tires are killing your mileage and thats pretty low gearing espesially if you drive a lot of highway
atvrider93 is offline  
post #4 of 33 Old 10-07-2010, 05:57 AM
Compression Ignition Addict
 
ridiculously_necessary's Avatar
 
Join Date: May 2008
Location: Blue Springs, MO
Posts: 4,207
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
yeah the tires and gearing is killing it. also agree on the hand calculate.

-Matt

Late 99 (2/99) Black F250, CC LB 4x4 Lariat 214k. All Stock for the moment...

1995 PSD, ext cab, one wheel wonder , 297k miles, 30k on wvo. totaled 5/8/11 RIP This truck is for sale as a parts truck (Jason is about to receive forged rods, and drop kick his PMR's)
DB high torque starter
DIY 6637
Marinco Mod
DIY Electric fuel w/ wvo conversion

"A clean house is a sign of a mis-lead life."
ridiculously_necessary is offline  
post #5 of 33 Old 10-07-2010, 07:12 AM
Compression Ignition Addict
 
Join Date: Sep 2009
Posts: 480
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
If mileage is that bad, first thing I would check is the brakes. Make sure they are not locked.
mas360 is offline  
post #6 of 33 Old 10-07-2010, 07:31 AM
Compression Ignition Addict
 
atvrider93's Avatar
 
Join Date: May 2010
Location: Raleigh, NC
Posts: 3,835
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Thanks: 12
Thanked 12 Times in 12 Posts
Feedback Score: 0 reviews
might as well check the front wheel bearings too
atvrider93 is offline  
post #7 of 33 Old 10-07-2010, 07:34 AM
Compression Ignition Addict
 
APEowner's Avatar
 
Join Date: Feb 2009
Posts: 258
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
The first thing I would check is the odometer calibration. The gears and tires could throw that off quite a bit and both the computer and hand calculating are dependent on that being correct.

2001 F-250
Stock for now
APEowner is offline  
post #8 of 33 Old 10-07-2010, 09:26 AM Thread Starter
Powerstroke.org Fanatic
 
Join Date: Jul 2010
Posts: 94
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I havent done it yet, but I will hand calculate the mileage the next time I fill up. This is my first diesel and my first big lifted truck so I didnt know what to expect.

I don't think the brakesare locked up, isn't that smetiong that would be very noticeable.

As far as the gears go, most of my driving is in town.
wanta7.3 is offline  
post #9 of 33 Old 10-07-2010, 09:34 AM
Compression Ignition Addict
 
Join Date: Dec 2007
Posts: 6,125
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 62 Post(s)
Thanks: 7
Thanked 219 Times in 210 Posts
Feedback Score: 3 reviews
Any neighbors also have a diesel?

No drips on the driveway by the fill cap? Hose marks?
NoRalPh is offline  
post #10 of 33 Old 10-07-2010, 01:09 PM Thread Starter
Powerstroke.org Fanatic
 
Join Date: Jul 2010
Posts: 94
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by NoRalPh View Post
Any neighbors also have a diesel?

No drips on the driveway by the fill cap? Hose marks?
No I noticed how bad the mileage was I drove it home from the dealership, which was about a 120 mile ride. I filled it up right before I got on the interstate and 120 miles later, I only had 1/2 tank left.

What size fuel tank is on my truck, Im thinking it is a 26 or 29 gallon.

Also if anybody else is using the Edge programmer what settings are you using, I set mine on the lowest setting and havent noticed any diff. in the mileage, when I got the truck the max EGT was set at 1350, is this right or do I need to lower it.

I dont know if it matters but the injector o rings were just replaced and I am getting some white smoke when I really gwet in the pedal, its not a bunch of smoke but moderate.

Thanks for any help.
wanta7.3 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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

 
For the best viewing experience please update your browser to Google Chrome