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What is this hose ?

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Old 06-04-2021, 06:59 AM
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Default What is this hose ?
Can someone tell me what this small diameter black plastic hose is for ? Located against the firewall on right side.
(2004 Discovery II 4.6)
Thanks


 
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Old 06-04-2021, 08:13 AM
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Breather tube from the transfer case, differential, or some other component. Follow it back to its source if you're desperate to know which one.
 
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Old 06-04-2021, 09:34 AM
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Thanks, looks like it is the axle breather tube .
 
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Old 06-04-2021, 10:17 AM
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Pretty sure that's one of the most commonly asked questions on this forum.
 
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Old 06-04-2021, 10:40 AM
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the D1 transfer and transmission breather hoses have a loop on the end so you can't mistake them
 
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Old 06-04-2021, 02:13 PM
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Originally Posted by RoverWithDogs
Thanks, looks like it is the axle breather tube .
Yep, front axle vent tube. Trans/transfer case are opposite side of engine, along firewall, with curled ends.

 
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