97 F350 Power Problems - Ford Truck Enthusiasts Forums
 
Go Back   Ford Truck Enthusiasts Forums > Diesel > 1994.5 - 1997 7.3L Power Stroke Diesel
Sign In
Register Forgot Password?


1994.5 - 1997 7.3L Power Stroke Diesel SPONSORED BY:

97 F350 Power Problems

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 07-28-2014, 06:29 PM
cnhtech cnhtech is offline
New User
 
Join Date: Jul 2014
Posts: 4
cnhtech is starting off with a positive reputation.
Question 97 F350 Power Problems

Hey guys I've got a 1997 F350 with a 7.3 Direct Injection Powerstroke and 5 speed transmission, 2 wd, with 4.10 gears. With no trailer on it, it moves pretty good, but the minute I put our enclosed trailer behind it, it turns into a gutless pos !!! Trailer loaded weights in the 12-14k range. If I hit a hill of any kind of size, I better be going 65+ and turning 2500 or better to have any chance of holding that speed by the top of the hill. I have also noticed on my last trip, which was 2 hours long, that when I got home the passenger side floor board / trans tunnel area was very warm, I had a pair of jeans laying on floor and when I picked them up it felt like they just came out of the dryer.
You guys got any wisdom as to what my problem might be?
The truck is my father in laws, is completely stock, is showing 149,000 on the clock. He got it with around 75,000 on it and has only had to do regular maintence to it ( oil and fuel filter changes).
Reply With Quote
  #2  
Old 07-28-2014, 10:11 PM
oldbird1965's Avatar
oldbird1965 oldbird1965 is offline
Post Fiend
 
Join Date: Aug 2004
Location: AZ
Posts: 14,335
oldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to behold
Quote:
Originally Posted by cnhtech View Post
If I hit a hill of any kind of size, I better be going 65+ and turning 2500 or better to have any chance of holding that speed by the top of the hill.
First of all, welcome to FTE. If your trailer weighs that much and you can hold that speed to the top, your doing great!! These engines are gutless stock, so don't expect to much. You can read in my signature and look at what I pull along with my mods and I struggle at times. Mine is about 18.5K and its running great. Downshift a lot and keep the RPM's up and you will do fine. If you don't believe what I'm saying, try that with a gasser!!
__________________
Glenn The Mule-96 2WD F250 EC/LB auto PSD
The old gray Mare 97 dually cc,modified s366 turbo,stage II's,DI IC,studs,springs,rods,JW auto,4:10 LS,air bags,SD uvch,efuel,FS2500 bypass oil filter,HVHF IDM,IH WP,6.0 trans cooler & rad fan,MBRP 4",SD tensioner,AFE air filter,220 amp alt,38 gal rear tank & 33 gal aux bed tank,aux oil cooler,soundproofed,4 tuners on Hydra,ac cold mod,XS batteries,riffraff hpop reservoir,aluminum radiator,Adrenaline hpop, water injection
Reply With Quote
  #3  
Old 07-28-2014, 10:24 PM
stainlessstroker95's Avatar
stainlessstroker95 stainlessstroker95 is offline
Postmaster
 
Join Date: May 2011
Location: Monroe City in
Posts: 3,172
stainlessstroker95 has a good reputation on FTE.stainlessstroker95 has a good reputation on FTE.
After a run crawl under and feel if the trany is warm. It might be low on fluid. Or maybe exhaust leak around there? Check your uppipes. And like Glenn said, these trucks stock dont have much power. A intake, exhaust will let it breath a little better.
__________________
Gabe 95 f250 4x4 super cab psd, zf 5 speed, 6637 air intake, scan gauge, stancor gpr, ccv mod, 140v IDM, HPX line, irate t4 mount, s366 turbo, i/c, 3" plenums, Rosewood 238/80 hybrids, T500, studs, springs, rods, DP Tuner f6 chip, diamond eye ss 4" exhaust, 3" dp, irate e fuel, short throw shifter, Valair kevlar/ceramic clutch, Destination MTs, d60 RSK V codes , shackle flip B codes, bilstien shocks, scorpion bed liner, custom tailgate. 96 f350 4x4 psd, dually flatbed welding truck, zf 5 speed, stock. 79 bronco.
Reply With Quote
  #4  
Old 07-29-2014, 06:58 PM
cnhtech cnhtech is offline
New User
 
Join Date: Jul 2014
Posts: 4
cnhtech is starting off with a positive reputation.
I crawled under it last night and noticed it had a muffler towards the rear and what I guess would be a catylitic converter closer to the front. Is this "converter" a known problem? Like I said in the original post, with out the trailer it seems fine. If it was a gasser, it acts to me like an exhaugst restriction like a converter being plugged up.
Reply With Quote
  #5  
Old 07-29-2014, 08:28 PM
oldbird1965's Avatar
oldbird1965 oldbird1965 is offline
Post Fiend
 
Join Date: Aug 2004
Location: AZ
Posts: 14,335
oldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to behold
A lot of us get rid of the cat and muffer, even take all the exhaust off and go with 3" DP, 4" straight pipe exhaust. Then put on a 6637 or AFE air filter and let that baby breath. That's the first thing to do and after that we can spend all your money, LOL!!
__________________
Glenn The Mule-96 2WD F250 EC/LB auto PSD
The old gray Mare 97 dually cc,modified s366 turbo,stage II's,DI IC,studs,springs,rods,JW auto,4:10 LS,air bags,SD uvch,efuel,FS2500 bypass oil filter,HVHF IDM,IH WP,6.0 trans cooler & rad fan,MBRP 4",SD tensioner,AFE air filter,220 amp alt,38 gal rear tank & 33 gal aux bed tank,aux oil cooler,soundproofed,4 tuners on Hydra,ac cold mod,XS batteries,riffraff hpop reservoir,aluminum radiator,Adrenaline hpop, water injection
Reply With Quote
  #6  
Old 07-29-2014, 08:40 PM
cnhtech cnhtech is offline
New User
 
Join Date: Jul 2014
Posts: 4
cnhtech is starting off with a positive reputation.
Another question, why is the exhaust pipe, down pipe I think it's called, flat? Seems to me that would restrict exhaugst flow? What's is this 6637 your referring too?
Reply With Quote
  #7  
Old 07-29-2014, 09:08 PM
oldbird1965's Avatar
oldbird1965 oldbird1965 is offline
Post Fiend
 
Join Date: Aug 2004
Location: AZ
Posts: 14,335
oldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to beholdoldbird1965 is a splendid one to behold
Ford shoe horned the PSD into our year of trucks, thus the flat pipe. You are 100% correct, its very restrictive. Get rid of it with a sawzal, not a torch. A 6637 is a open air filter, look on Riffraff Diesel Performance link at the top of the page under sponsors.
__________________
Glenn The Mule-96 2WD F250 EC/LB auto PSD
The old gray Mare 97 dually cc,modified s366 turbo,stage II's,DI IC,studs,springs,rods,JW auto,4:10 LS,air bags,SD uvch,efuel,FS2500 bypass oil filter,HVHF IDM,IH WP,6.0 trans cooler & rad fan,MBRP 4",SD tensioner,AFE air filter,220 amp alt,38 gal rear tank & 33 gal aux bed tank,aux oil cooler,soundproofed,4 tuners on Hydra,ac cold mod,XS batteries,riffraff hpop reservoir,aluminum radiator,Adrenaline hpop, water injection
Reply With Quote
  #8  
Old 07-30-2014, 10:07 AM
cowmilker08's Avatar
cowmilker08 cowmilker08 is offline
Postmaster
 
Join Date: Oct 2008
Location: Avilla, IN
Posts: 3,275
cowmilker08 is gaining momentum as a positive member of FTE.cowmilker08 is gaining momentum as a positive member of FTE.
FordTough7.3DIT
I agree with Glenn. You'd be surprised how much those 2 mods help. I would also gut the exhaust back pressure valve while changing the downpipe if it were me.
__________________
-Phil, '96 F250 7.3L, E4OD, 4x4, 3.55 gears, DIY intake, EBPV gutted, 3" DP to 3-1/2" SP, 203° T-stat, 1.0 Turbine Housing, 288 kmi
'97 F250HD 7.3L XCLB, E4OD, 4x4, 3.55 gears, 3" DP to 4" SP, EBPV gutted, DIY Intake, 125 kmi
"He that hath the Son hath life; and he that hath not the Son of God hath not life." 1 John 5:12
Reply With Quote
  #9  
Old 07-30-2014, 06:30 PM
cnhtech cnhtech is offline
New User
 
Join Date: Jul 2014
Posts: 4
cnhtech is starting off with a positive reputation.
Where's this exhaust back pressure valve at ?
Reply With Quote
  #10  
Old 07-30-2014, 07:03 PM
MOOSE_MACHINE's Avatar
MOOSE_MACHINE MOOSE_MACHINE is offline
Postmaster
 
Join Date: Mar 2004
Posts: 2,745
MOOSE_MACHINE is gaining momentum as a positive member of FTE.MOOSE_MACHINE is gaining momentum as a positive member of FTE.
Quote:
Originally Posted by cnhtech View Post
Where's this exhaust back pressure valve at ?
between the turbo and the downpipe
__________________
Sometimes your the windshield, sometimes your the bug
1997 F-350 xlt cclb PSD 4x4 zf5, 160/80's, custom tunes, T500, DIY e-fuel, 6.0 i/c, 38R, 3" plenums, gauges, 4" turbo back exhaust, diy bellows, south bend clutch
1992 F-250 2wd eclb 5.8 farm truck
1989 F-350 4x4 7.3 c6 auto retiread
Nick
Reply With Quote
  #11  
Old 08-30-2014, 11:32 PM
jrods2 jrods2 is offline
Freshman User
 
Join Date: Aug 2014
Posts: 37
jrods2 is starting off with a positive reputation.
wait a minuet, gut the back pressure valve? I thought the bpv was to stop the tubo from lag.
Reply With Quote
  #12  
Old 08-30-2014, 11:46 PM
MOOSE_MACHINE's Avatar
MOOSE_MACHINE MOOSE_MACHINE is offline
Postmaster
 
Join Date: Mar 2004
Posts: 2,745
MOOSE_MACHINE is gaining momentum as a positive member of FTE.MOOSE_MACHINE is gaining momentum as a positive member of FTE.
Quote:
Originally Posted by jrods2 View Post
wait a minuet, gut the back pressure valve? I thought the bpv was to stop the tubo from lag.
ebpv is to cause back pressure to make the motor work harder when it is cold. This helps it to warm up faster.
__________________
Sometimes your the windshield, sometimes your the bug
1997 F-350 xlt cclb PSD 4x4 zf5, 160/80's, custom tunes, T500, DIY e-fuel, 6.0 i/c, 38R, 3" plenums, gauges, 4" turbo back exhaust, diy bellows, south bend clutch
1992 F-250 2wd eclb 5.8 farm truck
1989 F-350 4x4 7.3 c6 auto retiread
Nick
Reply With Quote
  #13  
Old 08-30-2014, 11:46 PM
FI460's Avatar
FI460 FI460 is offline
Posting Guru
 
Join Date: Feb 2009
Location: Yreka, CA
Posts: 1,768
FI460 has a very good reputation on FTE.FI460 has a very good reputation on FTE.FI460 has a very good reputation on FTE.FI460 has a very good reputation on FTE.
Nope. It's just a warm up valve that's effectiveness has been questioned.
__________________
Rick--1988 F-250 4x4- Big Blue ExCab LB, 460, C6, 3" Flowmaster, Hydraulic dump bed, 35" tires, 4.10 gears
1978 F-100- Old Blue. RegCab SB, 302, 4 speed
2003 F-250 4x4- Gray, ExCab LB, 6.0l, 5r110w, ARP Studs, 33"s, 3.73
1997 F-350 4x4- White, CCLB, 7.3l, ZF5 swap, 35" toyo MT's, 4.10, RiffRaff 6637, 5" Straight Pipe
Reply With Quote
  #14  
Old 09-02-2014, 11:16 AM
cowmilker08's Avatar
cowmilker08 cowmilker08 is offline
Postmaster
 
Join Date: Oct 2008
Location: Avilla, IN
Posts: 3,275
cowmilker08 is gaining momentum as a positive member of FTE.cowmilker08 is gaining momentum as a positive member of FTE.
FordTough7.3DIT
To add to the above posts, it increases turbo lag. Gutting it will reduce turbo lag.
__________________
-Phil, '96 F250 7.3L, E4OD, 4x4, 3.55 gears, DIY intake, EBPV gutted, 3" DP to 3-1/2" SP, 203° T-stat, 1.0 Turbine Housing, 288 kmi
'97 F250HD 7.3L XCLB, E4OD, 4x4, 3.55 gears, 3" DP to 4" SP, EBPV gutted, DIY Intake, 125 kmi
"He that hath the Son hath life; and he that hath not the Son of God hath not life." 1 John 5:12
Reply With Quote
  #15  
Old 09-02-2014, 01:57 PM
jchosler's Avatar
jchosler jchosler is offline
Elder User
 
Join Date: Nov 2009
Location: Denver, CO
Posts: 796
jchosler is starting off with a positive reputation.
Intake, exhaust,and gauges are always your first mods on these OBS's. after there are a few mods that really wake them up. IMO chip, fuel, and injectors. A lot of guys are happy with just adding a chip if you dont want to really start getting into it.
__________________


97 F250 HD---3.5" D60 RSK Swap (1 ton suspension) with matching rear both at 4.10's, Beans D66, 6637, 3"x4" Tymer DP with 4" exaust and kitty delete, EBPV delete, DIY stage II's, Stricly Diesel electric fuel swap, Tony Wildman 6 pos chip, HPX, TE modded 17* HPOP, SD IC, Custom ranch hands front and rear, and my crawler of course
Reply With Quote
Old 09-02-2014, 01:57 PM
 
 
 
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
97 F350(old body style) Performance Question Ed the outdoorman 1994.5 - 1997 7.3L Power Stroke Diesel 2 03-25-2015 06:25 PM
Where's 1st gear 99f350sd Super Duty & Heavy Duty 19 02-22-2015 02:03 PM
92 E350 - Bogs down on steep hills in 1st and Reverse Steve-CC 1968-2013 Full Size Vans 1 07-04-2013 02:44 PM
C6 shifting late all of the sudden zspeed130 1987 - 1996 F150 & Larger F-Series Trucks 4 06-22-2013 05:21 PM


Go Back   Ford Truck Enthusiasts Forums > Diesel > 1994.5 - 1997 7.3L Power Stroke Diesel

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump



All times are GMT -5. The time now is 05:32 AM.

 

Powered by vBulletin® Version 3.8.7 AC2
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Terms of Service - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup