Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Chevrolet > Chevrolet Classics
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools Search this Thread
Old 12-02-2017, 02:08 AM   #1
TravisJGruber
AF Newbie
 
Join Date: Dec 2017
Location: Salineville, Ohio
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Transmission issues on 76' Camaro

I got a 76' Camaro that has a problem of going from the 3-4 gear to 2nd gear at random times. (Never does this when I am slowing down, only when I hit around 2500rpm or 60 mph) It also only does this when the car has warmed up.(usually about 40 minutes of driving)I cleaned the modulator and replaced the transmission filter and plan to clean the governator once I get off work. The transmission is for a 350 and is automatic with a shift kit and I was wondering if anyone knows what to do. (It still down shifts when speeding, after cleaning and replacing things, I was told that the transmission is fine cause if it was going bad it would do it all the time not just when warm.)
TravisJGruber is offline   Reply With Quote
Old 12-02-2017, 10:39 AM   #2
Stealthee
Your worst nightmare
 
Stealthee's Avatar
 
Join Date: Oct 2004
Location: Smithfield, Pennsylvania
Posts: 5,395
Thanks: 5
Thanked 131 Times in 128 Posts
Re: Transmission issues on 76' Camaro

It could very well be the transmission itself. Whoever said it would do it all the time and not only when warm must not know much about cars.
__________________
Stealthee is offline   Reply With Quote
Old 12-02-2017, 02:15 PM   #3
maxwedge
A990 racer
 
Join Date: Mar 2002
Location: Chestertown, New York
Posts: 16,516
Thanks: 13
Thanked 315 Times in 309 Posts
Re: Transmission issues on 76' Camaro

The 350 is a 3 sp, no 4 th. Down shifts are controlled by the governor, or 3-2 kickdown by the throttle linkage to the trans.. When did it start doing this, when the shift kit was done?
__________________
maxwedge is offline   Reply With Quote
Old 12-02-2017, 11:46 PM   #4
TravisJGruber
AF Newbie
Thread starter
 
Join Date: Dec 2017
Location: Salineville, Ohio
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Transmission issues on 76' Camaro

Quote:
Originally Posted by maxwedge View Post
The 350 is a 3 sp, no 4 th. Down shifts are controlled by the governor, or 3-2 kickdown by the throttle linkage to the trans.. When did it start doing this, when the shift kit was done?

Suprisingly no, it shifted just smoothly until about a month ago and we didn't mess with the transmission or anything related to it. Only put in a new Cam and lifters. Could a governor go bad and cause it to act like this?
TravisJGruber is offline   Reply With Quote
Old 12-03-2017, 07:51 AM   #5
maxwedge
A990 racer
 
Join Date: Mar 2002
Location: Chestertown, New York
Posts: 16,516
Thanks: 13
Thanked 315 Times in 309 Posts
Re: Transmission issues on 76' Camaro

Ok, had the top of the engine apart, go thru the the kickdown linkage adjstment
__________________
maxwedge is offline   Reply With Quote
Old 12-04-2017, 07:44 AM   #6
Blue Bowtie
Registered Offender
 
Blue Bowtie's Avatar
 
Join Date: Mar 2006
Location: Rural
Posts: 5,912
Thanks: 3
Thanked 235 Times in 231 Posts
Re: Transmission issues on 76' Camaro

New cam = potential different vacuum. Checking that governor and modulator would be a good idea, as well as verifying the kickdown linkage adjustment as Max recommended.

Wear in main shaft seals, actuator pistons, and valve spools CAN affect shifting as the trans temperature increases.
__________________
Permanent seat assignment on the Group W bench...
Automotive Forums Survival Guide
Blue Bowtie is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD


Bookmarks
Go Back   Automotive Forums .com Car Chat > Chevrolet > Chevrolet Classics

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -5. The time now is 05:15 PM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts