What exactly does the TCS solenoid do?
Thread Starter
Race Director
Joined: Jan 2001
Posts: 16,221
Likes: 118
From: Matthews NC
What exactly does the TCS solenoid do?
My '70 doesn't have one, is it necessary? Looking at the assembly manual, it wires to a switch on the side of the transmission. Was it for only a manual, auto, or both? When is the solenoid energized? What would happen if you don't have one? Thanks all in advance! :seeya
[Modified by RMVette, 9:38 PM 10/16/2002]
[Modified by RMVette, 9:38 PM 10/16/2002]
Melting Slicks
Joined: Feb 2000
Posts: 3,052
Likes: 0
From: Vancouver BC, Canada
Re: What exactly does the TCS solenoid do? (RMVette)
My '70 doesn't have one, is it necessary? Looking at the assembly manual, it wires to a switch on the side of the transmission. Was it for only a manual, auto, or both? When is the solenoid energized? What would happen if you don't have one? Thanks all in advance! :seeya
[Modified by RMVette, 9:38 PM 10/16/2002]
[Modified by RMVette, 9:38 PM 10/16/2002]
Le Mans Master
Joined: Jul 1999
Posts: 9,206
Likes: 17
From: Sewell NJ
Re: What exactly does the TCS solenoid do? (RMVette)
On a 4 speed car it also only allows vacuum advance in 4th gear. What a piece of work this system is. I disconnected the whole thing and set up my spark advance. It felt like I plugged in 50 horsepower.
Melting Slicks
Joined: May 1999
Posts: 2,897
Likes: 0
From: Moon Township PA
Re: What exactly does the TCS solenoid do? (RMVette)
The above descriptions are right on and accurate. A properly functioning TCS system won't affect your drivability at all. The inputs to the TCS system are: gear position (3rd and 4th for your car - I think), temperature of the engine, & a timer, mounted on the passenger side of the firewall. So many of them have been disconnected that if you don't have all the pieces, then you start looking at major cost. So many have just run a straight piece of vacuum tubing from the carb to the distributor.
Gary
Gary
Le Mans Master
Joined: Jul 1999
Posts: 7,072
Likes: 4
From: Maryland
Re: What exactly does the TCS solenoid do? (GaryS)
TCS solenoid for my '70 cost about $50. They were used in many other GM cars (like Camaro) at the time. The LT-1s got the AIR pump since it robbed less HP than the TCS. In my case only the unit on the intake was missing (and some hoses). But I haven't hooked it all back up yet. :lol: Shhh, don't tell the smog police! :jester
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