02 7.3 bad mpg - Ford Powerstroke Diesel Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 95 Old 07-08-2013, 12:01 PM Thread Starter
Member
 
Jmiller02's Avatar
 
Join Date: Mar 2013
Posts: 85
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
02 7.3 bad mpg

Hello all,

I am getting average calculated by hand 11mpg on the highway and 10mpg in town.

2002
F250
7.3
4 door
4x4
207,000 miles
4" lift
35x13x18 tires
Maybe 100lbs worth of toolbox and contents
Headache rack...not full length
Bolt on grill guard

4" mbrp turbo back
6637 filter
New ICP
Cleaned ebpv and tube
New fuel filter
AIH delete
CCV mod from riff raff
Gauges going in this week
Hutch and harpoon mod as soon as I run outa diesel
Boost anihilator from driven diesel this week
Superchips flashpaq 1855 tuner
Have IPR Rebuild kit from diesel o rings but hesitant to pull it after all the horror stories till I'm sure it's a problem.

I run all over town all week. Few miles here and a few miles there. Very rarely go over 2000rpm getting up to speed. Never let the truck run sitting more than 5 min and that only happens about once every week.

Usually on a 100-200 mile round trip every weekend. Still don't exceed 2000rpm very often getting up to highway speeds. Always set cruise. Usually at 72.

Got 7.6mpg towing 12,000lb travel trailer 200 miles this last weekend. Used the heavy tow setting on superchips. Ran about 65 mph.

Truck runs good with no leaks to speak of.

Is this kind of mpg to be expected?

Didn't change any when I lifted it and put bigger tires. Nor did it change any when i put the 6637 and bigger exhaust. Been calculating it by hand every tank in the year I've owned it.

Any help will be greatly appreciated.

Thanks,

Jmiller

2013 F350 6.7 CCLB KR 4X4. No Limit Intake. 4" delete pipe. No Limit Blockoff Plates. SCT Livewire TS. Leveled. 35" shoes.

FOR SALE 2002 F250 7.3 psd crewcab short bed. 4x4. DIY 6637. 4" turbo back mbrp exhaust. PHP Hydra. AIH Delete. Riff Raff CCV Mod. New icp. New cps. New ebps. Rebuilt ipr. 207,000 miles. 4" rough country lift. 05' front end. Driven diesel pre pump kit. Shimmed fpr. Boost guage. Fuel pressure guage. Tranny temp guage. EGT guage. FOR SALE
Jmiller02 is offline  
post #2 of 95 Old 07-08-2013, 12:15 PM
Compression Ignition Addict
 
timmyboy76's Avatar
 
Join Date: Aug 2010
Posts: 1,891
Thanks: 0
Thanked 20 Times in 20 Posts
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 0 reviews
look for soot on the firewall behind the turbo and build yourself a boost leak detector. You'd be surprise what a little bit of exhaust leak or boost leak, will do to these rigs. I'd dump the superchips for now and see what you get. The weight you tow, doesnt call for tunes, i'd think.

99.5 x-cab 7.3l, 6spd, 161k miles.....
timmyboy76 is offline  
post #3 of 95 Old 07-08-2013, 12:49 PM
Compression Ignition Addict
 
rascal's Avatar
 
Join Date: May 2011
Location: Alvarado, TX
Posts: 375
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by timmyboy76 View Post
look for soot on the firewall behind the turbo and build yourself a boost leak detector. You'd be surprise what a little bit of exhaust leak or boost leak, will do to these rigs. I'd dump the superchips for now and see what you get. The weight you tow, doesnt call for tunes, i'd think.
What he said...

Rascal
---------------
2000 F-350 XLT ECSB ZF6 4x4
38R+WW | Adrenaline HPOP | Optima | Ravelco | Mag Hytecs | Dynatrac | EBC | Strictly Diesel | AFE | Magnaflow | ISSPRO | DieselSite
rascal is offline  
post #4 of 95 Old 07-08-2013, 12:53 PM
Compression Ignition Addict
 
2000-7.3L's Avatar
 
Join Date: Aug 2012
Posts: 4,167
Thanks: 1
Thanked 16 Times in 16 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 10 reviews
CLEAN FUEL FILTER?
2000-7.3L is offline  
post #5 of 95 Old 07-08-2013, 01:03 PM Thread Starter
Member
 
Jmiller02's Avatar
 
Join Date: Mar 2013
Posts: 85
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Will check for boost leaks. Truck seems to have plenty of power tho.

Plan on ditching the superchips and ordering the php hydra this week.

Yes...the fuel filter I put in was brand new.

Thanks,

Jmiller

2013 F350 6.7 CCLB KR 4X4. No Limit Intake. 4" delete pipe. No Limit Blockoff Plates. SCT Livewire TS. Leveled. 35" shoes.

FOR SALE 2002 F250 7.3 psd crewcab short bed. 4x4. DIY 6637. 4" turbo back mbrp exhaust. PHP Hydra. AIH Delete. Riff Raff CCV Mod. New icp. New cps. New ebps. Rebuilt ipr. 207,000 miles. 4" rough country lift. 05' front end. Driven diesel pre pump kit. Shimmed fpr. Boost guage. Fuel pressure guage. Tranny temp guage. EGT guage. FOR SALE
Jmiller02 is offline  
post #6 of 95 Old 07-08-2013, 05:05 PM
Compression Ignition Addict
 
Zaairman's Avatar
 
Join Date: Apr 2007
Location: Wright City, MO
Posts: 3,030
Thanks: 7
Thanked 18 Times in 18 Posts
Mentioned: 0 Post(s)
Quoted: 12 Post(s)
Feedback Score: 1 reviews
Are you correcting for the larger tires? If not, your mileage is about 10% higher than you think it is, along with your odometer and speedo. Your mileage is still low, I also have 35s on my truck and average 16.5 on long trips with the cruise set on 75 MPH (corrected).

Zach
2000/2006ish Ford F-250 Larryette 7.3 Powerstroke 4x4
5" Sewer Pipe Exhaust (video clip), DIY 6637 Intake, Wicked Wheel'd, De-foiled, Missing EBPV, Edge Juice with Attitude, Few leaves added here and there, 35" BFGs, 16x10 Eagle Alloys, Alpine W200

SLAPS Member #153
Zaairman is offline  
post #7 of 95 Old 07-08-2013, 06:00 PM Thread Starter
Member
 
Jmiller02's Avatar
 
Join Date: Mar 2013
Posts: 85
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I corrected the tire size through the superchips tuner. Speedo is within 1mph of my Tom Tom that stays mounted on the dash. Would the odometer still be correct if speedo is correct?

I did the boost leak detector and only found one minor leak...rubber boot coming out of bottom of turbo to passenger side intake. Fixed it no prob. Of course the red and green lines leaked a lil. And I could hear air thru the exhaust pipe. Checked up pipes and inter cooler pipes. No leaks.

Ordered php hydra today. I know it won't solve my issues with mpg but I will feel better about running it than the superchips.

My next step is to clean and rebuild the ipr I guess.

Anymore input on a possible culprit?

No real blow by to speak of when I remove the oil fill cap.

Thanks,

Jmiller

2013 F350 6.7 CCLB KR 4X4. No Limit Intake. 4" delete pipe. No Limit Blockoff Plates. SCT Livewire TS. Leveled. 35" shoes.

FOR SALE 2002 F250 7.3 psd crewcab short bed. 4x4. DIY 6637. 4" turbo back mbrp exhaust. PHP Hydra. AIH Delete. Riff Raff CCV Mod. New icp. New cps. New ebps. Rebuilt ipr. 207,000 miles. 4" rough country lift. 05' front end. Driven diesel pre pump kit. Shimmed fpr. Boost guage. Fuel pressure guage. Tranny temp guage. EGT guage. FOR SALE
Jmiller02 is offline  
post #8 of 95 Old 07-08-2013, 06:27 PM
Powerstroke.org Sponsor

 
Corey@CNCFAB's Avatar
 
Join Date: Apr 2010
Location: Defiance, OH
Posts: 9,648
Thanks: 803
Thanked 535 Times in 489 Posts
Mentioned: 201 Post(s)
Quoted: 510 Post(s)
Feedback Score: 1 reviews
Did you remove the EBPS tube? It may have a rust hole in it.

Sent from AutoGuide.com Free App

E99CCLB 450/400s,STG1cam, KC38R, 4" exh,CNC FAB fuel&oil lines,140vIDM,BTS,S&B

97 ECLB F250 4x4 stock
96 CCLB F350 4x4 stock



EDGE,S&B,SCT,PHP Hydra,TS-Perf,OEM parts,Sam Wyse trans,VB's,LED's,MBRP,ISSPRO,ICON,FOX,KC TURBOs,SD 7.3 fuel kits, HPOP lines

www.cncfab.us or email sales@cncfab.us

Corey@CNCFAB is offline  
post #9 of 95 Old 07-08-2013, 06:39 PM
Compression Ignition Addict
 
Join Date: Apr 2012
Posts: 867
Thanks: 0
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I had a similar situation a while back, I got 12mpg no matter how I drove.

I changed my cps and did not see much change. Replaced my icp, ipr and ebps all at the same time iirc . I think it was the ipr or icp that really helped. The ebps was not very bad.

I ended up getting 14-15 city and 17-18 hwy@65-75. This was when I still had stock injectors and turbo with standard php tunes, and stock tires. You can also see I have a big dually with 410s

Id check the ebps and tube, icp and ipr.

03 F350 7.3L Auto CC LB Dually 410's (LS Rear)315's

PHP/Beans tuned, 250/100 FF inj's, BTS Tranny, Strictly Diesel complete fuel system w/RR & FB Delete, Pius LASB from Irate, Swamps hvhf IDM
Autometer Nexus Guages (TT,FP,BP,EGT), 4"MBRP, DieselSite Coolant filtration system/billet housing/HP X-Over line, Baldwin PA2818(6637) RR Boots, 26 row 6.0 Tranny & PS Cooler, LarryB's Denso Starter
INFRNL is offline  
post #10 of 95 Old 07-08-2013, 06:46 PM Thread Starter
Member
 
Jmiller02's Avatar
 
Join Date: Mar 2013
Posts: 85
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Cleaned the ebpv last week. Completely removed the tube and cleaned it and checked for holes. Cleaned where it mounts to the exhaust manifold and the bracket behind the pullies. Lightly cleaned inside the sensor. Wasn't much in terms of soot to clean out.

Put new icp n last week as well. Old one had started leaking oil into the connector.

Maybe need new ebpv. Looked fine to me.

Surely my one little boost leak couldn't cause my mpg to be that bad???

One thing at a time I guess and constantly check mpg.

2013 F350 6.7 CCLB KR 4X4. No Limit Intake. 4" delete pipe. No Limit Blockoff Plates. SCT Livewire TS. Leveled. 35" shoes.

FOR SALE 2002 F250 7.3 psd crewcab short bed. 4x4. DIY 6637. 4" turbo back mbrp exhaust. PHP Hydra. AIH Delete. Riff Raff CCV Mod. New icp. New cps. New ebps. Rebuilt ipr. 207,000 miles. 4" rough country lift. 05' front end. Driven diesel pre pump kit. Shimmed fpr. Boost guage. Fuel pressure guage. Tranny temp guage. EGT guage. FOR SALE
Jmiller02 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