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03-01-2012, 11:32 AM | #1 |
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Join Date: Aug 2011
Location: Gardnerville Nevada
Posts: 270
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Does this have a name?
Help please. I goofed when I took out my old wiring harness (about two months ago) and did not label this 'block'. It sits above the fusebox just to the right and is attached to the firewall. Definately runs into the engine bay and looks like it goes to the starter maybe? Does anyone know the name and function of this little gem? My new engine harness doesn't have anything that hooks up to this. 1972 k-10 btw.
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03-01-2012, 11:33 AM | #2 |
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Join Date: Aug 2011
Location: Gardnerville Nevada
Posts: 270
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Re: Does this have a name?
Pictures didn't load. Sorry
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03-01-2012, 12:43 PM | #3 |
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Join Date: Sep 2011
Location: Hilo, Hawaii
Posts: 1,051
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Re: Does this have a name?
Heater switch? Horn relay?
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Frank (Hilo, Hawaii) Trucks, Tacos, and Beer go together like Peanut Butter and Ladies! 85 C/10 SOLD http://67-72chevytrucks.com/vboard/s...d.php?t=760383 67 C/10 SOLD http://67-72chevytrucks.com/vboard/s...d.php?t=489298 79 K5 Blazer SOLD http://67-72chevytrucks.com/vboard/s...d.php?t=657461 |
03-01-2012, 01:37 PM | #4 |
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Join Date: Aug 2011
Location: Gardnerville Nevada
Posts: 270
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Re: Does this have a name?
Found out it's a "Transmission Spark Control". Whatever, it appearantly isn't used anymore. Emisison crap. Anybody looking, check this link: http://67-72chevytrucks.com/vboard/s...d.php?t=421564
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03-01-2012, 02:27 PM | #5 |
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Join Date: Dec 1999
Location: Yuba City Ca.
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Re: Does this have a name?
The TCS (transmission controlled spark) had a vacuum solenoid mounted on the intake manifold and a switch on the transmission that allowed vacuum advance only in high gear when the engine was up to operating temp.
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03-02-2012, 12:21 PM | #6 |
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Join Date: Oct 2009
Location: Phoenix, AZ
Posts: 475
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Re: Does this have a name?
In my 71, the horn relay is there by the fuse block. The TCS relays were on the engine side of the firewall, next to the bulkhead connector.
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1971 C10 Longbed, 350/TH350 |
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