Another 700r4 lockup question - 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 07-05-2011, 02:42 PM
Registered User
 
Join Date: Oct 2009
Location: Nebraska
Posts: 176
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Another 700r4 lockup question

I have a 700r4 in my 4x4. As with most I'm trying to get my lockup wiring within spec for my needs.

After looking through posts on this site and others I think I have a decent understanding of how I should wire this up, but I have a few questions.

From what I read it appears that I just need to keep my hot wire from my brake switch to terminal A and I can jumper terminals B & D together to bypass the computer and get automatic lockup when in 4th gear.

My question is by doing this can I disconnect the vacuum switch at the firewall and is this even a good idea.

Also, the one part I don't understand is how to manual engage the torque converter in 2nd or 3rd.


What I do know is that the current stock setup has the lockup engaged in 2, 3, and 4th gears and I have pretty violent 2nd to 1st shift at about 5mph. Also there is a tendency for the converter to engage and disengage back and fourth when i'm driving a lower speeds in town which is really annoying.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-06-2011, 09:37 PM
SSedan64's Avatar
Registered User
 
Last photo:
Join Date: Dec 2007
Location: Macon, GA.
Age: 50
Posts: 6,016
Wiki Edits: 0

Thanks: 0
Thanked 46 Times in 46 Posts
Quote:
Originally Posted by jmichaelre
My question is by doing this can I disconnect the vacuum switch at the firewall and is this even a good idea.

Also, the one part I don't understand is how to manual engage the torque converter in 2nd or 3rd. [/B]

What I do know is that the current stock setup has the lockup engaged in 2, 3, and 4th gears and I have pretty violent 2nd to 1st shift at about 5mph. Also there is a tendency for the converter to engage and disengage back and fourth when i'm driving a lower speeds in town which is really annoying.
The Vacuum switch is to prevent Lockup at anything but light throttle. This prevents TCC/TorqueConverterClutch damage. You could install an adjustable Vacuum switch to tune the Lockup point. This would prevent the TCC cycling.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-07-2011, 11:21 AM
Registered User
 
Join Date: Oct 2009
Location: Nebraska
Posts: 176
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanks for the info about the vacuum switch.....after doing a little more reading I think I've got the wiring stuff figured out.
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
1988 700r4 lockup question Crazz Transmission - Rearend 4 04-10-2007 07:54 PM
700R4 3rd & 4th lockup help please chrisape Transmission - Rearend 6 11-14-2006 06:25 AM
700r4 lockup runn141 Transmission - Rearend 3 09-06-2006 06:40 AM
700r4 or 350 lockup oldschool Transmission - Rearend 2 01-09-2006 04:25 PM
700R4 Lockup question AngliaBob Transmission - Rearend 2 05-08-2005 11:55 AM


All times are GMT -6. The time now is 01:32 PM.


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.