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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: hotrod24 on September 21, 2011, 05:03:13 pm

Title: help
Post by: hotrod24 on September 21, 2011, 05:03:13 pm

ok i have started thinking about tuning up my straight 6 and figuring out what needs to be replaced but i ran into a problem...

What is this red orange thing under the thermostat and radiator hoes

(http://inlinethumb32.webshots.com/48863/2205899830104707051S500x500Q85.jpg) (http://community.webshots.com/photo/2205899830104707051AyMQwU)

Title: Re: help
Post by: Captkaos on September 21, 2011, 06:06:32 pm

Can't tell, get a closeup..

Title: Re: help
Post by: hotrod24 on September 21, 2011, 07:32:36 pm

(http://inlinethumb27.webshots.com/46618/2445453740104707051S600x600Q85.jpg) (http://rides.webshots.com/photo/2445453740104707051VPAdYN)

(http://inlinethumb34.webshots.com/46945/2306836420104707051S600x600Q85.jpg) (http://rides.webshots.com/photo/2306836420104707051umhkuh)

Title: Re: help
Post by: zieg85 on September 21, 2011, 07:41:39 pm

Thermo vacuum switch I think

Title: Re: help
Post by: Lt.Del on September 21, 2011, 10:37:14 pm

yep, TVS.  When engine warms up it activates the switch which reroutes vacuum lines for emissions stuff

Title: Re: help
Post by: hotrod24 on September 21, 2011, 11:44:44 pm

Well i found these but they dont look like mine...

http://www.autozone.com/autozone/parts/1980-Chevrolet-C10-1-2-ton-P-U-2WD/Ported-Vacuum-Switch/_/N-ilyr1Z93xpw?filterByKeyWord=3+ported+vacum+switch&fromString=search

Title: Re: help
Post by: hotrod24 on September 22, 2011, 09:48:25 pm

Well i called napa and they said that they could get me one, He also said just to plug it becuase i did not need it lo.l So i guess that is what i am going to do...