tranny modulator

Reply

  #1  
Old 04-20-02, 09:45 AM
texasram
Visiting Guest
Posts: n/a
tranny modulator

I have a 91 chevy sportside with a 350 engine. the tranny is a 5 speed w/OD automatic. I don't know what type exactly. I want to know what does the transmission modulator do and how do you know its time to replace.
 
Sponsored Links
  #2  
Old 04-20-02, 11:51 AM
Billdo49er
Visiting Guest
Posts: n/a
It modulates the shift.
If vehicle is not shifting when it's supposed to then it may be time to check it out.Not just relace it.
 
  #3  
Old 04-20-02, 01:12 PM
Joe_F
Visiting Guest
Posts: n/a
As I recall, this is a 700R4 transmission, which is a 4 speed overdrive. It doesn't use a modulator. There is no 5 speed automatic in this vintage truck

The TV (throttle valve) cable adjustment is critical for good shifting. If it's off, the transmission becomes lunch in a heartbeat.

See the links/posts in my signature file for some information on adjustments.

Only a THM400 would use a modulator, and that is not the transmission in your truck.
 

Last edited by Joe_F; 04-20-02 at 04:03 PM.
  #4  
Old 04-20-02, 03:17 PM
Billdo49er
Visiting Guest
Posts: n/a
Good call Joe.I didn't notice the o/d part of his post.
 
Reply

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes