Re: What is T.C.S.?
When I start my car cold the fast idle is on you can hear when the temp switch cuts the vacuum it will drop 2-3 hundred RPM's.
Then when warm and idling putting the shifter in third will drastically raise the RPM 4th gear also.
Very easy to test to see if these systems are working correctly, and not bad to trouble shoot. I think at high levels of judging this should be included in tech inspection, if yours works you should get credit for it.
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Jack Seymour
1970 Z28
Hugger Orange
20K Mile Survivor
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