Dissapointed in my 99 Power Stroke :-( - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Like Tree2Likes
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 07-22-2014, 01:27 AM
Member
 

Join Date: Jun 2014
Location: Roanoke VA
Posts: 72
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Dissapointed in my 99 Power Stroke :-(

So two months ago I bought my low mileage (85k) '99(build date 4/99) supercab XLT. I have some issues all addressed now but even with all the money I have spent on it my mileage is terrible. I'm getting 10mpg at best in town. I have friends with 99' PS that are getting much better.

I went from a 2009 Jeep Commander with a Hemi and was getting 11.5 in town, 11 towing 7k at 70+ mph(with reserve power I might add) and easily got 17+ on the highway empty.

I thought and was told a diesel could do all that the Hemi could do and more and I'm disappointed to say the least.

I'm a mechanic, I have my degree from Nashville Auto Diesel College, I work on Diesel Electric locomotives and I understand engines and how to make them efficient. This truck responds in a negative way to everything I try to do to make it more efficient.

Is 10mpg in town and driving it like and old grandma normal? If so its time for another gasser. This truck is in perfect condition right now. I have had other hands and eyes on it and have gone over it, replaced everything that needed replacing. I don't understand why my Power Stroke just does not run right and efficient. Can someone give me something to look for?

To date I have;
Replaced the IPC, repaired all boost leaks, replaced the fuel filter, checked the up-pipes. Everything is good. No codes either. Its all stock, stock tires, no lift etc.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 07-22-2014, 02:22 AM
Compression Ignition Addict
 

Join Date: Jul 2011
Posts: 1,454
Thanks: 31
Thanked 13 Times in 12 Posts
Feedback Score: 0 reviews
Something's still not right with it. In my '01 CC 4wd I get 16 around torn and better if I baby it. Heck, pulling my 26ft travel trailer, I'm getting around 11mpg.

You are getting this, hand calculated, not from the overhead computer, right?
No codes when you pull codes with a scan tool that can actually pull the extended Ford codes? A cheapie code puller can't pull codes from these trucks.
Whois the turbo? The veins? How much boost can you get out of it?
Reply With Quote Quick reply to this message
  #3  
Old 07-22-2014, 02:28 AM
Can you hear the derail??

 

Join Date: May 2011
Location: Canton and kennesaw
Posts: 20,338
Thanks: 6
Thanked 97 Times in 90 Posts
Feedback Score: 4 reviews
Sticking or hanging calipers, stuck ebpv, impeller wheel looking rough? Injectors pass a contribution test?
Reply With Quote Quick reply to this message
  #4  
Old 07-22-2014, 06:20 AM
Compression Ignition Addict
 

Join Date: Dec 2006
Location: Flowery Branch, GA
Posts: 1,278
Thanks: 14
Thanked 41 Times in 38 Posts
Feedback Score: 0 reviews
I'm getting 14.5 mpg or so and I have a 4x4 2001 7.3 CCSRW, when I bought this truck a month or so ago, it was a dog, ran okay but I found out that the tire pressure was 40lbs in each tire after putting the right tire pressure was amazing how much pep it put back in the truck.

But 10 mpg is way off, I was getting 11.2mpg with my 2000 7.3L(RIP) towing a 8K travel trailer.
Reply With Quote Quick reply to this message
  #5  
Old 07-22-2014, 07:06 AM
Compression Ignition Addict
 

Join Date: Sep 2011
Location: cincinnati
Posts: 508
Thanks: 4
Thanked 12 Times in 12 Posts
Feedback Score: 0 reviews
check your ebps sensor and tube
Reply With Quote Quick reply to this message
  #6  
Old 07-22-2014, 10:33 AM
Member
 

Join Date: Jun 2014
Location: Roanoke VA
Posts: 72
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
My mileage is hand calculated. I do plan on cleaning the exhaust tube and sensor soon.
Reply With Quote Quick reply to this message
  #7  
Old 07-22-2014, 11:47 AM
Compression Ignition Addict
 

Join Date: Oct 2008
Location: Abbotsford
Posts: 2,199
Thanks: 16
Thanked 83 Times in 77 Posts
Feedback Score: 0 reviews
Don't clean the EBP sensor. Once the diaphragm inside is buggered it needs to be replaced. And that can make a significant difference.

Then replace the IPR. It's difficult to impossible to diagnose a faulty one, put power and mileage will be lost if it's not functioning properly.
Reply With Quote Quick reply to this message
  #8  
Old 07-22-2014, 01:59 PM
Member
 

Join Date: Jun 2014
Location: Roanoke VA
Posts: 72
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Quote:
Originally Posted by Joel View Post
Don't clean the EBP sensor. Once the diaphragm inside is buggered it needs to be replaced. And that can make a significant difference.

Then replace the IPR. It's difficult to impossible to diagnose a faulty one, put power and mileage will be lost if it's not functioning properly.
Is the IPR located near the IPC? Thats an expensive sensor! I thought the IPC was too much at $160
Reply With Quote Quick reply to this message
  #9  
Old 07-22-2014, 02:33 PM
Premium Member

 

Join Date: Sep 2009
Location: Beaumont TX/ Quilcene WA
Posts: 189
Thanks: 3
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
My 96 F Super Duty gets better mpg than that and it has 4:63 for rear end. I get around 14 mpg
Reply With Quote Quick reply to this message
  #10  
Old 07-22-2014, 05:11 PM
Member
 

Join Date: Jun 2014
Location: Roanoke VA
Posts: 72
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Quote:
Originally Posted by 351fifty View Post
Sticking or hanging calipers, stuck ebpv, impeller wheel looking rough? Injectors pass a contribution test?
Calipers are good, as far as I know the ebpv is good, impeller looks new. No idea about the injectors
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

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
Display Modes

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



All times are GMT -8. The time now is 08:16 PM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors