Tcs
Thread Starter
Advanced
Joined: Nov 2008
Posts: 84
Likes: 0
From: Buna Texas
Tcs
I am getting my 1971 LS-5 ready for flight judging. so I am going over all the operations and trying to fix everything that is not working as delivered. one is the TCS. I was looking for parts on ebay and found this wire holder on the transmission. is this a factory style part or is it a fix, that some one just came up with.
ebay item # 270707489297
ebay item # 270707489297
Team Owner
Joined: Sep 2006
Posts: 31,173
Likes: 4,250
From: Westminster Maryland
Hi ls,
FD is right on about 71 cars having the CEC system
Its basically a system that controls idle rpm and vacuum advance based on engine temperature and gear selection.
There's also a timer involved that triggers the solenoid mounted on the right front of the carburetor to increase idle (about 300-700 rpm) for about 30 seconds when the car is started.
Here's a picture of that solenoid.
The operation is explained in the Operations section and Mechanical section of the Tech Manual and Judging Guide, and also in the Chassis Service Manual.
Good Luck!
Regards,
Alan
FD is right on about 71 cars having the CEC system
Its basically a system that controls idle rpm and vacuum advance based on engine temperature and gear selection.
There's also a timer involved that triggers the solenoid mounted on the right front of the carburetor to increase idle (about 300-700 rpm) for about 30 seconds when the car is started.
Here's a picture of that solenoid.
The operation is explained in the Operations section and Mechanical section of the Tech Manual and Judging Guide, and also in the Chassis Service Manual.
Good Luck!
Regards,
Alan
Team Owner
Joined: Sep 2006
Posts: 31,173
Likes: 4,250
From: Westminster Maryland
Hi ls,
Do you have the AIM and GM Chassis Service Manual?
Here's some pictures from my 350; since the bb is a Q-jet too the hoses are the same.
1 electrical connection and 4 hose connections. You can just see the wire for the electrical connection running along the driver's side valve cover.
Good Luck!
Regards,
Alan
First right-side, and then left-side.
Do you have the AIM and GM Chassis Service Manual?
Here's some pictures from my 350; since the bb is a Q-jet too the hoses are the same.
1 electrical connection and 4 hose connections. You can just see the wire for the electrical connection running along the driver's side valve cover.
Good Luck!
Regards,
Alan
First right-side, and then left-side.
Last edited by Alan 71; Mar 18, 2011 at 05:23 PM.
Melting Slicks
Joined: Apr 2010
Posts: 2,793
Likes: 1,192
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
Here is an earlier discussion around the 1971 CEC/TCS system.
It helps to possibly explain how it works as well.
http://forums.corvetteforum.com/c3-t...id-wiring.html
Craig
It helps to possibly explain how it works as well.
http://forums.corvetteforum.com/c3-t...id-wiring.html
Craig
Melting Slicks
Joined: Apr 2010
Posts: 2,793
Likes: 1,192
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
Sorry for that, here is the correct link
http://forums.corvetteforum.com/c3-t...id-wiring.html
Craig
http://forums.corvetteforum.com/c3-t...id-wiring.html
Craig
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,114
From: Crossville TN
The CEC (combination emission control) system includes the TCS componentry as one portion of that total system. {as evidenced by the TCS switch locations shown in the page following the excert shown above}
