Auto locking hub vacuum lines
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5th Wheeling
Joined: Dec 2024
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Auto locking hub vacuum lines
Waiting on my 2025 F-250 SD XLT Tremor. Until then, making a list of to-do and mods for when it arrives. High on my list is replacing the OEM auto locking hubs with Warn hubs. I’ve done some research on this, and am familiar with how manual locking hubs work, but have one burning question. Why do the vacuum lines need to be capped? I understand the Warn hubs will not have an auto lock feature, but what would the harm be in leaving the vacuum lines as is? I would prefer to leave them as I will most likely reinstall the OEM hubs when the time comes to sell. TIA
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5th Wheeling
Joined: Dec 2024
Posts: 28
Likes: 14
Forgive my ignorance, but where would the leak occur? I guess I don’t see the difference between having vacuum lines in place versus having the lines capped. Either way, the system should be sealed, or am I missing something?
Mountain Pass
Joined: Jul 2024
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Common sense isn't common on this site....
Tuned
Joined: Aug 2024
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Them lines would be pretty gunked up by then, I could imagine.
The WARN hubs come with caps, but you could always just throw them away I guess, if capping the hoses irks you so much...
Mountain Pass
Joined: Jul 2024
Posts: 136
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You think it's a good thing to just have an open rubber tube have air/water/salt/dirt sucked into it for months and months until you decide to re-install the OEM hubs?
Them lines would be pretty gunked up by then, I could imagine.
The WARN hubs come with caps, but you could always just throw them away I guess, if capping the hoses irks you so much...
Them lines would be pretty gunked up by then, I could imagine.
The WARN hubs come with caps, but you could always just throw them away I guess, if capping the hoses irks you so much...
Tuned
Joined: Aug 2024
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5th Wheeling
Joined: Dec 2024
Posts: 28
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You think it's a good thing to just have an open rubber tube have air/water/salt/dirt sucked into it for months and months until you decide to re-install the OEM hubs?
Them lines would be pretty gunked up by then, I could imagine.
The WARN hubs come with caps, but you could always just throw them away I guess, if capping the hoses irks you so much...
Them lines would be pretty gunked up by then, I could imagine.
The WARN hubs come with caps, but you could always just throw them away I guess, if capping the hoses irks you so much...
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4th Gear
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The vacuum pump is located on the upper portion of the front cover and is driven by the high pressure fuel pump.
Vacuum is used by the EGR cooler bypass system, the brake booster on vehicles equipped with vacuum operated power brakes, and the 4x4 locking hubs on 4-wheel drive vehicles.
Vacuum is used by the EGR cooler bypass system, the brake booster on vehicles equipped with vacuum operated power brakes, and the 4x4 locking hubs on 4-wheel drive vehicles.
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