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06-25-2023, 03:37 PM
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#1 |
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Junior Member
 Join Date: Jul 2010
Location: Goodyear, AZ
Posts: 55
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Lower Thermostat Housing Ports
Hello,
My inline 6 has two ports in the lower thermostat housing. I installed water temp sensor in the right port. What is the left port used for? 
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06-26-2023, 12:09 PM
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#2 |
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Registered User
Join Date: Jun 2014
Location: CO
Posts: 731
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Re: Lower Thermostat Housing Ports
The other was probably used for some kind of emission controlled thermal vacuum switch. It looks like the other one broke off, so if you dont need to worry about emissions then it is fine the way it is.
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79 Chevy 2wd BIG10 350 TH400 |
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06-26-2023, 04:42 PM
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#3 |
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Robert Olson Transport
 
Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,268
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Re: Lower Thermostat Housing Ports
there was a vaccum thing to it for emmissions
__________________
Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
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06-26-2023, 04:54 PM
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#4 |
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Junior Member
Join Date: Jul 2010
Location: Goodyear, AZ
Posts: 55
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Re: Lower Thermostat Housing Ports
Cool, Thanks. Know what kind of thing was installed there? I'm getting ready to go through emissions for the first time. Like to pass out of the gate. Would it be a TVS I think? I've seen that in the vacuum diagrams. might explain why the EGR valve is capped off.
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