Author Topic: TH375 Wont kick down when accelerating  (Read 4890 times)

Offline GUITAR1989

  • Registered Users
  • *
  • Posts: 198
    • What I've done to my truck so far :)
TH375 Wont kick down when accelerating
« on: January 26, 2011, 01:48:52 am »
Hey guys my th375 wont kick down when I stomp on it. How should I go about tracking down the problem?

Offline jackjeckel757

  • Registered Users
  • *
  • Posts: 102
Re: TH375 Wont kick down when accelerating
« Reply #1 on: January 26, 2011, 09:13:08 am »
when I had that problem, I found my kick down cable on the carb needed to be adjusted.

Offline zieg85

  • Global Moderator
  • Senior Member
  • ****
  • Posts: 7595
    • 73-87 GM squarebody extended cab and conversions up to 91 R/V series
Re: TH375 Wont kick down when accelerating
« Reply #2 on: January 26, 2011, 09:34:21 am »
I believe the TH375 is an electric/switch operated and adjustment is under the dash.  There is a thread on this, search TH400 Kick down and you should pull it up.
« Last Edit: January 26, 2011, 03:45:10 pm by zieg85 »
Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
https://www.facebook.com/groups/248658382003506/

Offline GUITAR1989

  • Registered Users
  • *
  • Posts: 198
    • What I've done to my truck so far :)
Re: TH375 Wont kick down when accelerating
« Reply #3 on: January 26, 2011, 03:33:12 pm »
thanks man :) Im gonna look for an installation guide. Im not familliare with the way the system works or where all the componants connecting that switch to the tranny are located.

Offline zieg85

  • Global Moderator
  • Senior Member
  • ****
  • Posts: 7595
    • 73-87 GM squarebody extended cab and conversions up to 91 R/V series
Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
https://www.facebook.com/groups/248658382003506/

Offline GUITAR1989

  • Registered Users
  • *
  • Posts: 198
    • What I've done to my truck so far :)
Re: TH375 Wont kick down when accelerating
« Reply #5 on: January 26, 2011, 04:12:52 pm »
thanks alot man I must have skipped over that one when I looked earlier. Thars just what I needed to see. If I recall correctly my truck doesnt even have one of those switches on it. hmm this is gonna be a pain since I dont know how the switch links up to cause the tranny to kick down or have one on there to look at and find out. thanks for the help man I gotta go try and figure this thing out  ??? 

Offline zieg85

  • Global Moderator
  • Senior Member
  • ****
  • Posts: 7595
    • 73-87 GM squarebody extended cab and conversions up to 91 R/V series
Re: TH375 Wont kick down when accelerating
« Reply #6 on: January 26, 2011, 05:08:47 pm »
Assuming your truck originally came with a TH350 that would make sense.  Going to a TH375 is a logical step up without having to change the drive shaft yoke.  I don't know if they make kits, you may have to find a donor truck in a salvage yard to get the wiring from the trans to the switch on the go pedal.
Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
https://www.facebook.com/groups/248658382003506/