Results 1 to 3 of 3

vaccuum modulator or electronic?which is better?

This is a discussion on vaccuum modulator or electronic?which is better? within the Automatic Transmission forums, part of the Drivetrain category; HELLO.i have my tranny at my builders shop and we were tearing it down for a rebuild.we got to the ...

  1. #1
    Member Leeroyws6's Avatar
    Join Date
    Feb 2010
    Location
    fort worth
    Posts
    151

    black
    2000 trans am ws6 a4

    vaccuum modulator or electronic?which is better?

    HELLO.i have my tranny at my builders shop and we were tearing it down for a rebuild.we got to the valve body and noticed that it is modulated by vaccuum instead of electronically..there is a little diaphram nest to the valve body with a hose to it.also the electrical connector had some kind of resistor plugged to it to substitute for the electronic modulator.i remember my car not wanting to downshift when i planted the throttle a few times before the rebuild.(not the reason for the rebuild)my question is..should i go back with a vaccuum modulator or an electric one?will it effect shift firmness?im guessing since my engine is cammed up bigtime,the vcaccuum part probably isnt working too well,causing the modulator to not shit till it gets enough vaccuum.shouldnt an electronic one eliminate that?please let me know..im not too knowledgeable with automatics.thanks

  2. #2
    Moderator Cutlass's Avatar
    Join Date
    Apr 2008
    Location
    Madison, WI
    Posts
    6,996

    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    Is this a THM350 or THM400 or something?

  3. #3
    Member Leeroyws6's Avatar
    Join Date
    Feb 2010
    Location
    fort worth
    Posts
    151

    black
    2000 trans am ws6 a4

    no its just the garden variety 4l60e. but with a vacuum modulator instead of the force motor.ive read builders weither like the vacuum mod or hate it.i i myseld cannot see any disadvantages of full line pressure.just wondering why so many builders say they have never seen a 4l60e with a vacuum modulator last very long?can someone answer this?

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Vaccuum Leak. Manifold hose
    By Lunatikgixxer in forum Firebird / WS6
    Replies: 14
    Last Post: 08-28-2011, 11:33 AM
  2. Sirius Satt Radio w/FM Modulator Fun
    By Sarge in forum GTO
    Replies: 6
    Last Post: 05-22-2010, 01:49 PM
  3. Help: vaccuum issues!!!!!!!!!!!!!!!
    By lancesT/A in forum Internal Engine
    Replies: 17
    Last Post: 03-30-2010, 08:45 PM
  4. electronic
    By 35thAnniZ28 in forum Almost Anything Goes
    Replies: 10
    Last Post: 11-19-2007, 04:35 PM
  5. Not getting enough vaccuum to operate heater controls
    By Shaun Beil in forum General Help
    Replies: 4
    Last Post: 07-28-2007, 02:41 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •