Go Back   Ford Truck Enthusiasts Forums > Diesel > Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
Sign in using an external account
Register Forgot Password?


Pre-Power Stroke Diesel (7.3L IDI & 6.9L) Diesel Topics Only

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #16  
Old 10-24-2007, 04:15 PM
David85's Avatar
David85 David85 is offline
Post Fiend
 
Join Date: Nov 2003
Location: Campbell River, B.C.
Posts: 6,900
David85 has a good reputation on FTE.David85 has a good reputation on FTE.
The OEM E4OD torque converters are very weak, and not just from clutch slippage, get an aftermarket one with as many upgrades as you can afford, especially if you plan to increace the output of the engine later on at some point.
__________________
1986 F250HD Ex cab Fresh built up 6.9L diesel, Lariat AC leather seats power everything w/full cluster, sterling rear 3.08LS gears, E4OD trans, ram intake ATS 088 turbo


1986 F150 Ex cab Lariat rollercam 5.0L on LPG AOD trans 3.55 gears 390 000Ks
Reply With Quote
  #17  
Old 11-07-2012, 04:24 PM
edderd edderd is offline
New User
 
Join Date: Mar 2005
Posts: 16
edderd is starting off with a positive reputation.
Question about TC lockup

I tried to do the manual torque converter on my truck and got into some problems. My truck is a 90 f250 with E4od and 460 engine. I had previously installed a billet tc and Transgo shift kit about 7 years ago.
Truck was shifitng fine, but my tc started unlocking and locking at hwy speeds so I tried to install the manual tc lockup switch. Right away, the transmission acted strange. It was slipping badly, like I was starting in 2nd gear. I would not get any tc lockup so I removed the switch. Now it still acts like it is starting in second, and the OD button doesn't do anything. I also don't have od anymore. I would appreciate any advice on things to check. The fuse in the panel looks OK and the OD light is lit and never flashes.
Reply With Quote
  #18  
Old 11-07-2012, 04:56 PM
Hamberger Hamberger is offline
Posting Guru
 
Join Date: Sep 2005
Location: Ladner, British Columbia
Posts: 1,506
Hamberger is starting off with a positive reputation.
TC Lock-up

If the OD light is lit but not blinking than that means the OD is OFF and by default (programming) your TC should not lock.

I am not sure what would happen if you install the switch and try to lock the TC with the switch while you have the OD button in OFF.

The OD and TC Lock-up are interrelated in that the TC will unlock automatically when OD is botton is turned off (i.e. light on)

Have you checked your TPS (Throttle Position Sensor) for any flat spots)? Is your Engine TACH cutting out sometimes?

Lastly Have you changed your VSS, they do go sometimes and on pre-92 models they were still located in the tailshaft housing of the transfer case.

You won't necessarily get any flashing OD light on an intermittent sensor problem that is triggered by the VSS, TPS, or Tach Sensor.

A code scan would help to identify your problems.
__________________
91 F-350, 7.3l non-turbo, E40D, 4:10, B20, B40

93 F-250,7.3l factory turbo, 5ZFOD, 3:55, B40
Reply With Quote
  #19  
Old 11-07-2012, 09:49 PM
FORDF250HDXLT's Avatar
FORDF250HDXLT FORDF250HDXLT is offline
Post Fiend
 
Join Date: Jul 2006
Posts: 12,523
FORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud of
the converter doesn't lock until the trans shifts into 3rd gear.
the od cancel button does simply that.it doesn't alter the converters un/lock state at all.
if your getting an improper lockup condition,inspect the tps (for diesels.)
for incorrect gear starts,inspect the MLPS.

Quote:
Originally Posted by cornbinder View Post
also i remember , during the first half of the trip when the t/c started acting up every time i hit a bump in overdrive the t/c would unlock then lock back up. what part of the trailer wiring is the culprit? anybody know? later, pete
i bet Pete (back in '07) had a bad solenoid pack plug causing his issues.
fairly common that the plugs get dirty,loose because they were never snapped back in from previous removal,or even due to this plug failing completely perhaps because someone left the heat shield off etc,and the exhaust melts the wiring covers and then wires are all exposed and it causes all kinds of fun.
they sell a e40d solenoid pack repair plug to cure the issue.

of course if this only happened when he had his trailer plugged in,then i guess he likely found the issue there easy enough.
__________________
♠ Log Truck: '93 F-Super Duty (F450) XLT 1st Gen Navistar 444ci IDI Diesel w/ Intercooled 2nd Gen Banks Sidewinder Turbo, E40D, 5:13, Dually, 16' Dump & Auto Crane ♠
♠ Chip Truck: '93 F250HD XLT 4x4 1st Gen Navistar 444ci IDI Diesel w/ Intercooled 2nd Gen Banks Sidewinder Turbo, E40D, 3.55, Dually, 9' Dump, & Plow ♠

Reply With Quote
  #20  
Old 11-08-2012, 03:37 PM
edderd edderd is offline
New User
 
Join Date: Mar 2005
Posts: 16
edderd is starting off with a positive reputation.
Thanks

Thanks Hamberger for the advice. I will take a look at the sensors this weekend. I also will check out the MLPS as the gear indicator doesn't align on the column. I have replaced the VSS, TPS and shift solenoid body last year, but I shouldn't rule out anything. Do you think the EEC relay would be worth checking? I just want to get the transmission functioning normally before I try the Manual TC lockup swith again.
Reply With Quote
  #21  
Old 12-01-2012, 09:18 PM
edderd edderd is offline
New User
 
Join Date: Mar 2005
Posts: 16
edderd is starting off with a positive reputation.
Back in Business

I got her working again. I replaced the MLPS but it didn't help. Then I replaced the solenoid body and the transmission is shifting properly and the OD cancel switch is working properly. I think that I shorted out something in the solenoid when I tried to install the manual TC lockup switch. I converted the wiring back to stock for now. Thanks to all for the advice.
Reply With Quote
Old 12-01-2012, 09:18 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
I want to tow 10,000 pounds 119er Pre-Power Stroke Diesel (7.3L IDI & 6.9L) 13 05-05-2013 06:43 PM
Torque Converter not locking up? Sirtopemshat 1994.5 - 1997 7.3L Power Stroke Diesel 9 12-11-2010 08:20 PM
torque converter clutch question ssjerrys Clutch, Transmission, Differential, Axle & Transfer Case 1 10-20-2010 11:19 PM
Torque converter? rusty9cab 1994.5 - 1997 7.3L Power Stroke Diesel 7 02-14-2009 07:04 PM
E4od Strange Behavior? fmr9 Clutch, Transmission, Differential, Axle & Transfer Case 4 06-15-2006 01:32 AM


Go Back   Ford Truck Enthusiasts Forums > Diesel > Pre-Power Stroke Diesel (7.3L IDI & 6.9L)

Tags
converter, e4od, ford, lock, problems, solenoid, torque, unlock

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


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »





All times are GMT -5. The time now is 12:28 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - 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. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup