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Old 05-17-2020, 04:06 PM   #10
LT7A
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Join Date: Oct 2015
Location: PNW
Posts: 3,511
Re: 83 Chevy C20 Suburban 454 engine wiring

Quote:
Originally Posted by blakeduren View Post
So...the tach wire leads to the speed sensor to help activate the solenoid to send vacuum to the pot on the carb to bump up the idle for the A/C.
This system was for 78-84 I believe.
Thanks for running this to ground and reporting back. I would have probably had the same questions on my Suburban at some point.
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