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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: mrscot83 on October 07, 2009, 09:01:52 am
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83 Scottsdale, 76 350, 85 700R4, 83 Quadra carb
OK, I noticed this Trans conv vac sw on the diagram, under the hood when I purchased the truck from an auction. I saw that the hose coming from the cannister that was supposed to go to this switch was not plugged into anything. I figured it's running and shifting OK, so why mess with it? Now I am getting my 700R4 rebuilt. I want to know what this switch does and where this switch is? The hose is maybe a couple of feet...I am pretty sure someone here knows exactly what I'm talking about. For all I know, that unplugged hose could have lead to the demise of my tranny. I am lost on this one.
Actually, now that I think about it, there's all kinds of things disconnected - wires, hoses....Every time I touch it, I find something...sheesh
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Your truck must have came from the same person mine did. I bet there are 5 or 6 electrical plugs not used and something on the firewall that looks like it should have a vaccum hose attached.