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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

What is this part?

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Old Sep 26, 2013 | 07:03 PM
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What is this part?

So, 1980 F150 is not idling too good these days, and vacuum lines are original, so thought I'd start by replacing all that. First thing I did was break a connector getting hose off, but bought from Pico and that is good. But somehow tonight I broke this part, connected to vacuum lines. It used to be together, but now is apart. The white circle thing in middle of pic. What is it?
 
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Old Sep 26, 2013 | 07:13 PM
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Look at your diagram on the radiator. And also trace the lines from that piece and see where they go. It looks like a vacuum delay valve(VDV) Like these.
List: Vacuum Delay Valve - 1979 Ford Ranchero | O'Reilly Auto Parts
 
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Old Sep 26, 2013 | 09:24 PM
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I agree and IIRC those are color coded but I could be wrong.
 
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Old Sep 27, 2013 | 04:54 AM
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It IS a delay valve and they ARE color coded.
 
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