Still low power under 2000 rpm - PowerStrokeNation : Ford Powerstroke Diesel Forum


Home Today's Posts Mark Forums Read
Go Back   PowerStrokeNation : Ford Powerstroke Diesel Forum > Super Duty 1999-Current > 7.3L Power Stroke Technical Info
Register Members List Timeslips Calendar Auto Loans Sponsors Becoming a Sponsor Mark Forums Read Auto Escrow

PowerStrokeNation.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools Display Modes
  #1  
Old 10-07-2012, 03:16 AM
bonser16's Avatar
bonser16
Offline
PSN Local
Member's Gallery
 
Join Date: Feb 2012
Location: Lynchburg, VA
Posts: 70
Still low power under 2000 rpm

SO i had a t-500 hpop put on big red the other day. runs a lot better at high rpm but still NO power from 1300-2000 rpm. i have to power brake it to get it to move with a trailer behind it. fuel economy still good. starts and idles great. tranny good shifts etc like always. fuel pressure good no smoke issues. im confused what to do next. fuel filter new etc
__________________
*DD 97 CCLB. A/T 3.55 intake, downpiped, exhaust, dp 5 pos. Tuner rebuilt tranny. ISSPRO pyro, egt, tranny guages. some stuff gator guarded.
*Work truck 96 xcab lb. Tuned by Swamps, intake downpipe rebuilt tranny 3.55. 295k+
*Snow White 97 CCSB edge tuner, exhaust rebuilt tranny 4.10, 285 nittos, SOLD
Reply With Quote Quick reply to this message Go to the top
Sponsored Links
Advertisement
 
  #2  
Old 10-07-2012, 07:58 AM
ghohouston's Avatar
ghohouston
Offline
whistle tits
Member's Gallery
 
Join Date: Mar 2011
Location: Lewisville, Texas
Posts: 2,683
Re: Still low power under 2000 rpm

transmission
__________________

1997 F350 CCLB 7.3 ZF5 4x4, 6637, 5" exhaust, ebpv deleted, Gearhead tuned, complete super duty e fuel setup
Reply With Quote Quick reply to this message Go to the top
  #3  
Old 10-08-2012, 12:56 AM
kenmore
Offline
PSN Local
Member's Gallery
 
Join Date: May 2012
Location: North of Cincinnati
Posts: 197
Re: Still low power under 2000 rpm

Tranny slipping? Fluid burnt? Or maybe turbo hose has a big leak? We had a truck at work that did that amd it turned out to be a broken connecting hose for the turbo (split on the underside)
Reply With Quote Quick reply to this message Go to the top
  #4  
Old 10-08-2012, 02:14 AM
bonser16's Avatar
bonser16
Offline
PSN Local
Member's Gallery
 
Join Date: Feb 2012
Location: Lynchburg, VA
Posts: 70
Re: Still low power under 2000 rpm

i thought tranny too. took it to shop and the guy who built my tranny in other truck said it was fine. he said it was "a fuel problem". ? connecting hose on turbo where and what is that?
Reply With Quote Quick reply to this message Go to the top
  #5  
Old 10-08-2012, 03:22 AM
ghohouston's Avatar
ghohouston
Offline
whistle tits
Member's Gallery
 
Join Date: Mar 2011
Location: Lewisville, Texas
Posts: 2,683
Re: Still low power under 2000 rpm

no offense to anyone, but did the "tranny builder" have any sort of powerstroke diesel knowledge? i dont see that being a fuel problem at all, i have the same problem in my truck, its my tranny slipping hardcore, its getting a bts very soon if i dont sell it
Reply With Quote Quick reply to this message Go to the top
  #6  
Old 10-08-2012, 03:24 AM
ghohouston's Avatar
ghohouston
Offline
whistle tits
Member's Gallery
 
Join Date: Mar 2011
Location: Lewisville, Texas
Posts: 2,683
Re: Still low power under 2000 rpm

and he is talking about the orange boots around your spyder in front of your turbo, the 2 boots coming up from each intake plenum. providing we're talking about an obs here without an intercooler
Reply With Quote Quick reply to this message Go to the top
  #7  
Old 10-09-2012, 11:08 PM
Old OutLaw's Avatar
Old OutLaw
Offline
Cantankerous Old Redneck
Member's Gallery
 
Join Date: May 2011
Location: SoCal
Posts: 612
Re: Still low power under 2000 rpm

you have 3.55's....it's not gonna wanna go anywhere with a load on it, especially if you have larger tires than stock.....try this :

stick it in 4 low next time ur tied onto something, and see how well it moves out.....

gearing makes ALL the difference in the world.....
__________________
'97 Centurion. F350 4x4 CCLB
Full Force 180cc Stage I's, D66, SRP-1.1, ARP, Banks IC, DIY E-Fuel, EBPV Del & Gut'd Ped., BD Brake., SD IDM, HPX, BstFoolr, 4" DP - 4" exh,
6.0 Fan, 180 T-Stat, DIY Don.105006 AF, CCV Mod, BTS, 3/8" cooling lines, Tru-Cool Max, PML, Bumper Mod, Gauges, Fluidampr, Mellings LPOP.....
Tuned by "The WildMan".....
Reply With Quote Quick reply to this message Go to the top
  #8  
Old 10-10-2012, 03:36 PM
bonser16's Avatar
bonser16
Offline
PSN Local
Member's Gallery
 
Join Date: Feb 2012
Location: Lynchburg, VA
Posts: 70
Re: Still low power under 2000 rpm

the wierd thing is its not that it takes off slow it dont want to move at all. and it shakes shudders and sputters. then at 2000 rpm it takes off. it acts the same if its in neutral and you just rev it up. i got it stuck with loaded 20' trailer yesturday in 4x4 and it would turn tires over great as long as i kept my foot in it.
again thanks for the replies this problem has stumped more than a few diesel mechanics
Reply With Quote Quick reply to this message Go to the top
  #9  
Old 10-11-2012, 05:25 AM
Old OutLaw's Avatar
Old OutLaw
Offline
Cantankerous Old Redneck
Member's Gallery
 
Join Date: May 2011
Location: SoCal
Posts: 612
Re: Still low power under 2000 rpm

I see.... well, in that case, you probably need a torque converter
Reply With Quote Quick reply to this message Go to the top
  #10  
Old 10-14-2012, 01:22 AM
bonser16's Avatar
bonser16
Offline
PSN Local
Member's Gallery
 
Join Date: Feb 2012
Location: Lynchburg, VA
Posts: 70
Re: Still low power under 2000 rpm

One more thought on this. When i take of from a stop the rpms don't climb like they should it just sputters and shakes. His 2000 rpm smooths out and takes off. If the torque converter was bad wouldn't the engine build rpms normally? Just slip and not take off?
Reply With Quote Quick reply to this message Go to the top
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the PowerStrokeNation : 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:

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.




(View-All Members who have read this thread : 69
10fords, 444-4D, Ballistic, bf9412, Bigjay400, BIGN, birdog, Blacksmoke&Buckinhorses, bonser16, BucktownPSD, cabloom7.3, cara_verga, Chado, charlez, Clarence_Carter, Coltfarmboy0990, coollwalk, dieselpwr83866, Dieselsvt, doublej112, dually strokes, duncan351, FL78Bronco, Fordguy26, ghohouston, golfer, hag000, Highbeam, hydro man, Ja_cain, jbwaldrop88, Jordy53, JumpMan92, juvenile9, Kampy, kenmore, kingstransport, lilgreen97tj, loc0gring0, loner1, losfinch, milehighstroker, Newman, Old OutLaw, old Smokey, OldschoolPSD, OUTLAW-OFFROAD, phercinger, PHPDiesel, pilot4life, powersmoker73, pursleybp, rammertide07, refill1961, rockets10510, rpm-inc, RyanG85, sargepep56, Schlepdog, Scooterg1, slayton93, snknby123, sstec, SWVa, tbolt, teevo66, That Diesel, toddg, TXStroker97
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

Forum Jump


All times are GMT. The time now is 10:01 PM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.