Transmission swap.....now experiencing problems - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 09-02-2001, 10:03 AM
Registered User
 
Join Date: Sep 2001
Location: Canada
Posts: 2
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post Transmission swap.....now experiencing problems

Hello and good-day to everyone.I have a Chevrolet diesel powered pickup from the late 1970's.It has the factory equipped 5.7 litre diesel V8 designed by oldsmobile.The truck had the turbo 400 tranny,but I took it out in favour for the 700-R4 because since I rarely tow anything with the truck,I decided that fuel economy was of a better issue.The 700-R4 is remanufactured as well as the converter.When on the interstate going at approximately 100km/hr,the truck performs okay on a flat level grade.But as soon as I approach a grade,the truck loses alot of speed and drops back to 65-70km/hr.When this occurs,I depress the accelerator a little,but I avoid lugging the engine.This however does'nt help.The engine speed is okay,but the truck is plain lazy on the hills.There's no constant speed.When the turbo 400 was there,it had all kinds of power and speed,even when I had my 24-foot trailer on tow with a rather heavy farm tractor out back.But now,with the 700 series tranny,it's useless when even pulling my trailer.I have to put the selector down into low 2 to get any power out of it in the hills.The truck has 3.42's out back.It's a 1/2 ton version and two wheel drive.The 700 tranny I bought is for a gasoline application though.Does this make a difference?Is the convertor malfunctioning,or is it mismatched for the diesel?There is a electrical plugin on the 700 series tranny.This is'nt hooked up.What is causing the problem?Please,can somebody tell me what's wrong?What do I need to do in order to get it right?Is there a kit or something I need to remedy this,or does the converter need to come out?I was told that the diesel and gas powered 700-R4's are the same.Again,any help or suggestions would be appreciated.Thank-you to all.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 09-06-2001, 06:48 PM
Member
 
Join Date: Jun 2001
Location: Red Hook N.Y. USA
Posts: 51
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post



[ September 07, 2001: Message edited by: edcroozer ]
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 10-10-2001, 06:31 PM
Tom Tom is offline
Member
 
Join Date: May 2001
Location: agawam ma
Posts: 323
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

700 gas and diesel trannys are different in the gearing I have a friend with a GMC diesel van, came stock with a 700r4 the tranny went bad so it was replaced with a used gas unit and the problems began first he thought the used trans was bad because of all the chugging so he had it rebuilt the guy rebuilding it told him there was no much wrong but rebuilt it anyway, same problem now he has a th350 in the van and is happy with it
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last 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.




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

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 -6. The time now is 07:42 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.