Ford Diesel Forum / Powerstroke Forum Ford Diesel Forum / Powerstroke Forum
Go Back   Diesel Forum - The Diesel Stop.com > Ford Diesels > 7.3L IDI Diesels (Not Power Strokes)
Register Home Forum Active Topics Gallery Search Today's Posts Mark Forums Read

7.3L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

       
Reply
 
LinkBack Thread Tools Display Modes
Old 03-10-2005, 01:52 PM   #1 (permalink)
Member
 
Join Date: Feb 2004
Location: Essex, Maryland
Posts: 50
iTrader: (0)
My Photos: (0)
80 MPH @ 1750 RPM

That's right! I must be getting great fuel mileage!

This happened yesterday morning and this morning. When cold and warming up the speedo has been reading very high. After fifteen minutes or so in stop and go traffic the speedo reads correctly for the rest of the day. So, is the speedo electrically driven, [img]/ubbthreads/images/graemlins/shrug.gif[/img] and where would the contacts that may be corroded be?
__________________
1991 F-250, Lariat, 4x4, extended, 7.3 with Banks Power Pak,non-turbo, E4OD, stock with 240,000.
dayjtradr is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Old 03-10-2005, 02:23 PM   #2 (permalink)
Junior Member
 
Join Date: Feb 2005
Posts: 2
iTrader: (0)
My Photos: (0)
Re: 80 MPH @ 1750 RPM

I've been wondering the same thing myself. My speedo jumps all the time nobody at the ford place knows why. It acts like its got a broke cable or something, but its electric. You find out let me know. Please
__________________
1992 F-250,5spd,4wd,7.3,219,000 mi.,ranchhand brushguard & headache rack, dee zee toolbox & bedrails, westin step bars, cab lights, k&n air filter, gooseneck ball, class 5 hitch, american racing alum. wheels, sony cd player.
SPRINGFIELD is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 03-10-2005, 02:48 PM   #3 (permalink)
Senior Member
 
Join Date: Dec 2003
Location: NE Kansas
Posts: 1,730
iTrader: (0)
My Photos: (0)
Re: 80 MPH @ 1750 RPM

well, the 91 is not electrically driven. You may have a broken cable or a bad speedomoter. The 92 is a completely different system. I can send you a working speedometer free if you think you can use it. If you are close I will help do it. About half an hour and you do not have to lose your odometer.
__________________
2006 GMC K3500 CC DRW 4x4
1994 F-350 DRW PS w/ zf5
1996 Town Car
mgraveman is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 03-10-2005, 02:59 PM   #4 (permalink)
Senior Member
 
Join Date: Jun 1999
Location: Delta, PA. USA.
Posts: 15,192
iTrader: (0)
My Photos: (23)
Re: 80 MPH @ 1750 RPM

What part of Maryland are you from? We've got a growing contingent in these parts.
__________________
- Mel

1983 F-250HD 4X4 The Moose Truck - Moose Pump, DPS Injectors, Hypermax Turbo, GV 7spd., 3.54 Gears, Moose Air, RDT, Dual Stacks, 35"tires. My Album 55MPH at 1400 RPM. 19MPG Avg.

1993 F-350 CC DRW The Lady Moose - Hypermax Turbo, GV 9spd w/Double OD. 4.10's. Dual Exhaust, custom trim, turned up 6.9 fuel system, Lucky Flywheel.

1987 Bronco The Moosestang 1987 Bronco Diesel 6.9L C6 4X4 with 3.54 gears, 2" body lift.

HeadGasket/Turbo Article
A BOOB man! Visit EZBoard.com and search for IDI.
agnem is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 03-10-2005, 07:49 PM   #5 (permalink)
Member
 
Join Date: Feb 2004
Location: Essex, Maryland
Posts: 50
iTrader: (0)
My Photos: (0)
Re: 80 MPH @ 1750 RPM

Mike, if I had a bad speedo or cable would it only act up first thing in the morning and then be right on the entire rest of the day?
John
__________________
1991 F-250, Lariat, 4x4, extended, 7.3 with Banks Power Pak,non-turbo, E4OD, stock with 240,000.
dayjtradr is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 03-10-2005, 07:54 PM   #6 (permalink)
Member
 
Join Date: Feb 2004
Location: Essex, Maryland
Posts: 50
iTrader: (0)
My Photos: (0)
Re: 80 MPH @ 1750 RPM

Mel, I'm in Baltimore County. I've seen your posts from Pa. You're not very far at all. There's a great little restaurant in Delta just across the Md.-Pa border. I'm up that way several times a year, if I know I'm going to be there ahead of time I'll give you a yell. John
__________________
1991 F-250, Lariat, 4x4, extended, 7.3 with Banks Power Pak,non-turbo, E4OD, stock with 240,000.
dayjtradr is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 03-10-2005, 10:40 PM   #7 (permalink)
Senior Member
 
Join Date: Jan 2002
Location: Columbia Maryland
Posts: 281
iTrader: (0)
My Photos: (0)
Re: 80 MPH @ 1750 RPM

Hey John,
Just wanted to say hi and welcome. I live in Columbia Md.
Charlie
__________________
Name: Charlie, 92 F-350 Dually CC, 4:10, 120,000mi
Banks Non Waste Gate Turbo
Rebuilt E40D @ 80 K : (2) Aux. Tranny collers
Custom Exhaust, glow plugs and water pump by Mel
Joe Cool Filter by Joe
5th wheel for my 25' 02, 24 5C Wilderness Lite RV
25', 25K GVW Goose neck Trailer.
02 Gehl 362, 8.6 K excavator, 2000 Ramrod mini skid steer. 2000 Worhorse ATV.10 K Dump Trailer.
73 30,000 K GMC Dump Truck
87 Honda Reflex Trials 87 Yamaha XT-350 Enduro, 81 Suzuki 850L. Front-Rear hitch.
LandscapeMan is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 03-10-2005, 10:47 PM   #8 (permalink)
Senior Member
 
Dave Haven's Avatar
 
Join Date: Oct 2000
Location: Near Flagstaff, AZ
Posts: 3,466
iTrader: (0)
My Photos: (16)
Re: 80 MPH @ 1750 RPM

Is your speedo reading high, or is your tach reading low?
__________________
"Big Red"-'89 F-250 4X4 reg cab; 7.3; Cat ELC (no problems, ain't skeered ; 4.10 axles; 5-speed ZF "Bolt-Action"; ATS turbo installed @ 158K; Holley "Red" pump; new injectors and 2nd Reman IP@ 234.5K; "Coffee Can" (4") downpipe-back exhaust....
6220#

"Trick Truck"- 1970 F-350 w/custom utility bed and cabover camper; Cadillac leather seat; CAT 3208 w/turbo from CAT 613 scraper; 5" straight pipe; 6-speed Allison "slush box"; 3-speed "Brownie"; 2-speed Eaton rear axle from F-600; Custom rear deck w/ air compressor, Lincoln arc welder, Oxy-Acetylene rig, and boom crane....
17,940# 26' Class C motorhome

"White Pony"- 2007 Mustang; 4 liter V6; "5-shot bolt action" (an automatic in a Mustang is just WRONG!)
Dave Haven is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 03-10-2005, 11:37 PM   #9 (permalink)
Senior Member
 
Join Date: Nov 2004
Location: Katy Tx
Posts: 843
iTrader: (0)
My Photos: (0)
Re: 80 MPH @ 1750 RPM

can anyone tell me why the heck my truck was running 55 at 2000 rpms my buddy has the same truck and he runs 70 at 2000. it wasnt this bad on the old pump does the plug on the side of the i[ have anything to do with it?


-jeremy Roooster!
__________________
American by birth, Southern by the grace of God!


1991 F250 7.3l 200XXX extended cab long bed. 3.55's REDNECKED OUT!! 295/75/16 Bfg All Terrains 16 in billet rims. New front brake pads and rotors, rear shoes, glow plug controller, glow plugs, return line kit duralast batteries, mitubishi off set gear redution starter, altenator, valve cover seals, holley red pump,new injector pump, soon to be new injectors, new vacum pump. Removed soup bowl and drilled holes in air intake.


http://community.webshots.com/user/r0oster06
R0oster06 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 03-11-2005, 12:14 AM   #10 (permalink)
Senior Member
 
Join Date: Apr 2004
Posts: 517
iTrader: (0)
My Photos: (0)
Re: 80 MPH @ 1750 RPM

Are you sure you have the same gears? Just thought Id ask.
juggernaut150 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 03-11-2005, 12:39 AM   #11 (permalink)
Senior Member
 
Join Date: Oct 1999
Location: San Leandro, CA bay area
Posts: 2,543
iTrader: (0)
My Photos: (33)
Re: 80 MPH @ 1750 RPM

I have a spare dash and was wondering how to switch out the speedometers without loosing my odo. if you could share with us it would be greatly appreciated.
__________________
1994 7.3 I.D.I. Navistar 444 CI
ATS Factory TURBO E4OD Red On white Crew Cab DRW 4:10 w/ AUBURN LIMITED SLIP
3" ATS Exhaust and turbo housing, Banks Trans Command, calibrated pump, K&N filter, Gruss style coolant filter, 203K+MI not a lick of trouble with the motor. now on 16th trans. 10 under factory 100K mile warranty
Alpine CVA-7878 XM radio 6cd changer 3 8" phoenix gold subs 75x4 Sony mobile ES gold 4ch amp, Sony 500W 1ch amp MB quart components in Q forms kick panels. 1 farad cap.
Pro car parts jewel cut headlamps and turn signals
APC clear cab markers, suvlights.com harness silverstar bulbs and L.E.D.'s in the fenders. IT's paid for and its MINE!
Family Toys and tools,
00'F350 psd CC Drw 2wd Bright Amber Western Hauler
SOLD 01' Peterbilt 330 4Dr. Texas trucks conversion cAt 350hp
02' Psd Excursion Limited ultimate Estate Green helliwig swaybar 101K miles
1996 fetherlite 4 horse GN, 2003 sooner 6 horse GN with midtack
Dualie is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 03-11-2005, 10:11 AM   #12 (permalink)
Senior Member
 
Join Date: Dec 2003
Location: NE Kansas
Posts: 1,730
iTrader: (0)
My Photos: (0)
Re: 80 MPH @ 1750 RPM

OK, this is strictly for the people that will use it responsibly. I thought about doing a write up, but changed my mind.

1) Remove guage cluster
2) Placed cluster on workbench, facing up
3) Remove the clear plastic cover using a torx screwdriver. It's a T15
4) There are a few more screws holding on a black spacer. Reove these, and the black spacer

You should now have the back of the cluster in front of you, with 3 or 4 distinct guage panels visible.

5) Starting at the outermost one, pry straight up with a screwdriver underneath the face of the panel. These overlap each other, with the speedo being overlapped on both sides by other guages. There are no screws holding these on, just electrical pins. Most guages have two to three of these on the back.
6)With the speedo panel out and in you hand, you should be able to see a circuit board on the back, witha long computer-like cable that goes to the LED display. There is a plug on the back that is rectangular, and was unplugged when you took out the cluster.
7)Carefully remove all three screws holding on the circuit board
8) remove the clip and cable for the LED display


Installation is the reverse of removal, and the circuit board is what controls the mileage. You can actually drive with nothing in but this board, and the odometer will rack up miles. There will be another step for removal of the auto tranny indicator, but mine is manual and I do nto know where to disconnect this. Consult a manual for the removal of the guage cluster.

When this goes back on, your speedo may read 85. You do not have to remove it and put it back to 0, as it will move with gravity when it is out. Driving it to about 20 mph will send it back to where it belongs. I will try to take pics of this soon, but do not have a digital camera. By the same token, you can only replace the guage that needs to be replaced, instead of the whole thing. The whole process takes about half an hour.

Let me know if I can help more.
__________________
2006 GMC K3500 CC DRW 4x4
1994 F-350 DRW PS w/ zf5
1996 Town Car
mgraveman is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 03-11-2005, 10:28 AM   #13 (permalink)
Senior Member
 
Join Date: Jun 1999
Location: Delta, PA. USA.
Posts: 15,192
iTrader: (0)
My Photos: (23)
Re: 80 MPH @ 1750 RPM

John, yes your close. Perhaps we need to have a mini meet at Delta Family resturant some time. My wife went to Essex community college for a little while. I know the area well.
__________________
- Mel

1983 F-250HD 4X4 The Moose Truck - Moose Pump, DPS Injectors, Hypermax Turbo, GV 7spd., 3.54 Gears, Moose Air, RDT, Dual Stacks, 35"tires. My Album 55MPH at 1400 RPM. 19MPG Avg.

1993 F-350 CC DRW The Lady Moose - Hypermax Turbo, GV 9spd w/Double OD. 4.10's. Dual Exhaust, custom trim, turned up 6.9 fuel system, Lucky Flywheel.

1987 Bronco The Moosestang 1987 Bronco Diesel 6.9L C6 4X4 with 3.54 gears, 2" body lift.

HeadGasket/Turbo Article
A BOOB man! Visit EZBoard.com and search for IDI.
agnem is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 03-11-2005, 07:16 PM   #14 (permalink)
Member
 
Join Date: Feb 2004
Location: Essex, Maryland
Posts: 50
iTrader: (0)
My Photos: (0)
Re: 80 MPH @ 1750 RPM

Dave, the speedo is definitely reading high. Tach seems to be right on. [img]/ubbthreads/images/graemlins/shrug.gif[/img] Any ideas? John
__________________
1991 F-250, Lariat, 4x4, extended, 7.3 with Banks Power Pak,non-turbo, E4OD, stock with 240,000.
dayjtradr is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 03-11-2005, 07:20 PM   #15 (permalink)
Member
 
Join Date: Feb 2004
Location: Essex, Maryland
Posts: 50
iTrader: (0)
My Photos: (0)
Re: 80 MPH @ 1750 RPM

Hey Charlie, thanks for the welcome. I'm over by 108 2-3 times a week. Maybe we can meet sometime. John
__________________
1991 F-250, Lariat, 4x4, extended, 7.3 with Banks Power Pak,non-turbo, E4OD, stock with 240,000.
dayjtradr is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Diesel Forum - The Diesel Stop.com > Ford Diesels > 7.3L IDI Diesels (Not Power Strokes)



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

» Search Used Trucks
Search for used vehicles by ZIP, please enter Zipcode below:
Google Links

» Log in
User Name:

Password:

Not a member yet?
Register Now!
» Wheel & Tire Center


» Network Links
»Ford Car Reviews
»Mo