What is this???

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Meyster89

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What is this thing for?? Located on passenger side under the hood. Thanks!
 

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towjoe

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Mudsuck valve lol
 

89Suburban

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Isn't that something for the trans downshift?
 

J Knight

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Torque converter lock up switch.
 

Meyster89

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Should I have it hooked up to something??
 

Meyster89

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Yup !!! Used on Th350C and 700r4 NON ECM NON TBI trucks.

Ok, Nothing has been hooked up to it since I got the truck, Should I hook it up?? Whats the cons if I don't or difference if I do? Sorry about all the questions, Just too educated on the whole torque converter lock up.
 

RetroC10Sport

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Depends on if you have one of those 2 transmissions. If not, then take it off or whatever you want to do with it.
 

VAL

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My truck has the same deal, It has a 700r4. Its been like that since the day I got it. I always see it, but never wondered what it was for. My trucks been running good for years now, and as far as I know, its never been hooked up.
 

8T6K5

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????
 

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HotRodPC

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8T6K5

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Also looks like a severed vac line coming out of the firewall.....
 

HotRodPC

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Also looks like a severed vac line coming out of the firewall.....

Yep, I bet his duct work in the cab don't distribute very well from the air handler.
 

Meyster89

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The strap is just there, everything is grounded in other ways.. I guess.. I didn't even notice that vac line there before, Thanks for pointing that out, I'll have to see where it goes. Everything works great inside the cab so not sure. I know the guy who had it before did some work on the truck, but still learning as I go as to what is factory and no longer used and what is needed as of now.
 

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