#1  
Old 02-08-2024, 08:24 PM
Skidmark Skidmark is offline
Senior Member
 
Join Date: Apr 2021
Location: Wake Forest area, NC
Posts: 178
Default What is this part and what does it do?

1975 TA. Sticking out of the shaker assembly on passenger side.
Attached Thumbnails
Click image for larger version

Name:	IMG_20240203_201024 (1).jpg
Views:	90
Size:	4.2 KB
ID:	628182  

  #2  
Old 02-08-2024, 09:19 PM
Red80TA Red80TA is offline
Member
 
Join Date: Dec 2023
Posts: 75
Default

TVS Thermal Vacuum Switch. Has different uses on different models. Simple setup is a vacuum line to it and runs to something else, but its operation is temperature controlled, either to work only when cold, or to not work when cold. In 1975, I think it diverted to the secondary vacuum pull off. In other models it also ran to the snorkel diaphragm for cold starts.

  #3  
Old 02-08-2024, 11:09 PM
Skidmark Skidmark is offline
Senior Member
 
Join Date: Apr 2021
Location: Wake Forest area, NC
Posts: 178
Default

Quote:
Originally Posted by Red80TA View Post
TVS Thermal Vacuum Switch. Has different uses on different models. Simple setup is a vacuum line to it and runs to something else, but its operation is temperature controlled, either to work only when cold, or to not work when cold. In 1975, I think it diverted to the secondary vacuum pull off. In other models it also ran to the snorkel diaphragm for cold starts.
Thanks for such a through answer exactly what I was looking for.

Reply

Thread Tools
Display Modes

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

Forum Jump


All times are GMT -4. The time now is 03:01 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017