What exactly does this part do?
Thread Starter
Safety Car
Joined: Mar 2000
Posts: 3,541
Likes: 448
From: Central Pennsylvania
What exactly does this part do?
On early C3's there is a Transmission Controlled Spark (TCS) solenoid mounted on an intake manifold stud near the rear passengers side of the carburetor. How exactly does this part work? There is also a TCS switch/relay mounted on the drivers side firewall. How does this interact with the solenoid? What do these things monitor or control?
The solenoid is missing from my car and I'm unsure if it's something that was typically removed to enhance performance, or if it's something I'd be interested in reinstalling. The relay/switch is still on my firewall and connected to the wiring harness. Is the solenoid powered from the harness or is it vacuum controlled?
The solenoid is missing from my car and I'm unsure if it's something that was typically removed to enhance performance, or if it's something I'd be interested in reinstalling. The relay/switch is still on my firewall and connected to the wiring harness. Is the solenoid powered from the harness or is it vacuum controlled?
Instructor
Joined: Dec 2002
Posts: 242
Likes: 0
From: Port Orchard Washington
Re: What exactly does this part do? (ettev)
Search the site first using "TCS". Also go to the NCRS site and search the archives. You will find everything you will ever want to know about TCS.
Thread Starter
Safety Car
Joined: Mar 2000
Posts: 3,541
Likes: 448
From: Central Pennsylvania
Re: What exactly does this part do? (Missileman)
Search the site first using "TCS". Also go to the NCRS site and search the archives. You will find everything you will ever want to know about TCS.
Le Mans Master
Joined: Oct 2000
Posts: 6,209
Likes: 33
From: Texas-out west
Re: What exactly does this part do? (ettev)
the way I understand it is it limits the amount of advance you can have until in high gear, an emissions thing. I have removed on a 73 I had and noticed no difference what=so-ever in performance or gas mileage. By the way you might score one in a salvage yard off a 70s chev or some type. I did and the part number was exactly the same for my 70. :D
