EGR valve vacuum delay switch
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EGR valve vacuum delay switch
so i decided to go ahead and replace my water pump and radiator, and that led to hoses, water outlet, thermostat, coolant temperature sensor, lots of rusted bolts and clamps, etc. of the many things i decided to replace, i came across this ported vacuum switch which i believe is called an "EGR valve vacuum delay switch" that i think keeps the egr closed until the engine reaches a certain temperature
anyways, the purpose of my post and the question that i have is: isn't there supposed to be a big piece of copper at the end of the threads here? since there isnt, does that mean it could have fallen off into my water outlet? could it be chilling in the intake manifold somewhere? i didnt see it near the thermostat when i took everything apart.
i also noticed that the second port on the switch is clogged up with the same rust, dirt and gunk that was in the water outlet
here are some pics of the piece and its corrosion
One
Two
Three
Four
anyways, the purpose of my post and the question that i have is: isn't there supposed to be a big piece of copper at the end of the threads here? since there isnt, does that mean it could have fallen off into my water outlet? could it be chilling in the intake manifold somewhere? i didnt see it near the thermostat when i took everything apart.
i also noticed that the second port on the switch is clogged up with the same rust, dirt and gunk that was in the water outlet
here are some pics of the piece and its corrosion
One
Two
Three
Four
Last edited by klx90; Sep 25, 2011 at 04:20 PM. Reason: fixed pics
Cargo Master
Joined: Dec 2004
Posts: 3,362
Likes: 22
From: Florence, SC
Originally Posted by klx90
so i decided to go ahead and replace my water pump and radiator, and that led to hoses, water outlet, thermostat, coolant temperature sensor, lots of rusted bolts and clamps, etc. of the many things i decided to replace, i came across this ported vacuum switch which i believe is called an "EGR valve vacuum delay switch" that i think keeps the egr closed until the engine reaches a certain temperature
Originally Posted by klx90
anyways, the purpose of my post and the question that i have is: isn't there supposed to be a big piece of copper at the end of the threads here? since there isnt, does that mean it could have fallen off into my water outlet? could it be chilling in the intake manifold somewhere? i didnt see it near the thermostat when i took everything apart.
i also noticed that the second port on the switch is clogged up with the same rust, dirt and gunk that was in the water outlet
i also noticed that the second port on the switch is clogged up with the same rust, dirt and gunk that was in the water outlet
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meangenejr
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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Jul 28, 2004 09:33 AM
