Poor Mileage Help - Ford Powerstroke Diesel Forum
User Tag List

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 12 Old 08-16-2006, 11:51 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Feb 2006
Location: MN
Posts: 21
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Poor Mileage Help

Hi Everyone
Does anyone know what could maybe wrong with my truck?
I Have '01 psd cc sb 315/75/16 bfg tires 3.73 gears boost,trans,exhaust gauges 5" of lift 4" turbo back exhaust k&n filter (just cleaned) superchip programmer.
The problem is that no matter what I have the chip set at I can only get at best 14 mpg city or hwy and I never going over 70 mph babing it on take offs.The truck seem to run great
Has anyone had this type of problem?
Please Help
tiny is offline  
post #2 of 12 Old 08-17-2006, 12:07 AM
Compression Ignition Addict
 
ndurbin's Avatar
 
Join Date: Mar 2006
Location: Medicine Lodge, Kansas
Posts: 411
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Send a message via Yahoo to ndurbin
I think your problem lies in the 315s and 5" lift while running 3.73s myself, but I could be wrong.

Changed the fuel filter lately? Might try running synthetics completely thru the driveline, that picks up 1 MPG or so.

1994 Dodge Ram 2500 CTD 330hp/765tq - work truck
2002 Ford F150 - daily driver
ndurbin is offline  
post #3 of 12 Old 08-17-2006, 12:45 AM
444
Member
 
Join Date: Jul 2006
Posts: 39
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
same deal here with 3.73s and 35s. guess its the price you pay to look nice. my parents have little 31s and drive without ever hearing the turbo. its sad but they get 18mpg alllll the time.
444 is offline  
post #4 of 12 Old 08-17-2006, 04:59 AM
Powerstroke Techie

 
Clay Henry's Avatar
 
Join Date: Jul 2006
Location: Tuttle, OK
Posts: 17,245
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 22 Post(s)
Thanks: 1
Thanked 20 Times in 18 Posts
Feedback Score: 0 reviews
How many RPMs are you running to get this poor milage?
Try running a tank of fuel and don't get it over 60 mph. I get alot better milage if i don't get in a hurry and drive like my grandma. Actually she drove faster than i do....and she couldn't see well!!

2003 6.0 F350 dually on high cholesterol fuel (WVO)
2000 7.3 Excursion also on a high cholesterol fuel



Clay Henry is offline  
post #5 of 12 Old 08-17-2006, 09:41 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Feb 2006
Location: MN
Posts: 21
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 do driving like a grandpa that why I think maybe something might be wrong.When I pull a 4500lbs trailer hwy at 70 mph cruise set and all flat ground I'm lucky to 12 mpg. I changed my fuel filter about 2000 miles ago along with the oil. I running about 1850 rpms at 70mph.The truck only 56000 mile on it not broke in?
tiny is offline  
post #6 of 12 Old 08-17-2006, 04:53 PM
Banned
 
Join Date: Jan 2006
Location: central coast, california
Posts: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 5 Times in 3 Posts
Feedback Score: 0 reviews
do you have your speedo recalibrated for the new tire size???
mschn99 is offline  
post #7 of 12 Old 08-17-2006, 10:08 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Feb 2006
Location: MN
Posts: 21
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
yes the speedo is recalibrated
tiny is offline  
post #8 of 12 Old 08-17-2006, 10:24 PM
The Fat Mod
 
Logan's Avatar
 
Join Date: Aug 2006
Location: Hickory, NC
Posts: 12,509
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Yeah I am going with tire size...Sux though huh

Logan is offline  
post #9 of 12 Old 08-18-2006, 10:38 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Feb 2006
Location: MN
Posts: 21
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 funny thing about it is the before I did anything to the truck when it was bone stock I got poor mileage. my mileage has not changed with everything I have done to it.
tiny is offline  
post #10 of 12 Old 08-18-2006, 11:15 AM
Compression Ignition Addict
 
Ford 1's Avatar
 
Join Date: Aug 2006
Location: Ft Stockton Texas
Posts: 229
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via MSN to Ford 1 Send a message via Yahoo to Ford 1
I've ran big meats on a few of my trucks. Between those and the rearends is probably the cause. Your lucky, one Super modified
'74 El Camino(vette 350 and 44" Dick Cepecks) I had, got about 6mpg on a good day!
Ford 1 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