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Mystery vent tube?

Old Feb 11, 2012 | 07:12 PM
  #1  
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Default Mystery vent tube to nowhere

Need some help identifying this hose. I am In the process of replacing my cylinder head because I did not join the Cherokee forum before I made an uneducated purchase of a 2000 Cherokee from a lying douchebag and it blew a head gasket. Anyhow, I came across this hose wrapped in heat resistant foil that is not connected to anything. It is cut off just below the firewall and I cant figure out where it is supposed to be attached.

Thanks!
Attached Thumbnails Mystery vent tube?-imag0350.jpg  

Last edited by rustyventure; Feb 11, 2012 at 07:26 PM.
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Old Feb 11, 2012 | 07:18 PM
  #2  
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follow down to see where it goes. i bet it is the vent for the charcoal canister witch is back by the gas tank
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Old Feb 11, 2012 | 07:27 PM
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Vent for the t-case or front diff.
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Old Feb 11, 2012 | 07:29 PM
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Originally Posted by cruiser54
Vent for the t-case or front diff.
Winner winner chicken dinner....
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Old Feb 11, 2012 | 07:31 PM
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Originally Posted by cruiser54
Vent for the t-case or front diff.
X2
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Old Feb 11, 2012 | 08:06 PM
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Ah, yes. Probably removed when the lift kit was installed.
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Old Feb 11, 2012 | 08:11 PM
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Front Diff! ya! I found that but was just hanging on mine when i first brought it home.
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Old Feb 11, 2012 | 09:10 PM
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Originally Posted by rustyventure
Ah, yes. Probably removed when the lift kit was installed.
front axle still needs a vent with a lift. The hole in the diff is on top of the axle carrier housing, just behind the diff. cover. If the vent tube is disconnected, the hole is probably wide open...not good.
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Old Feb 18, 2012 | 02:24 AM
  #9  
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My jeep also has this. But what is the little white plug in the end? Also the other end of hose goes down behind the engine. Does the other end of this plug into the front axle?
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Old Feb 18, 2012 | 05:54 AM
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Not a plug. A vent with a cap on it to keep crap from getting into the tube.
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Old Feb 18, 2012 | 01:15 PM
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Originally Posted by rustyventure
Need some help identifying this hose. I am In the process of replacing my cylinder head because I did not join the Cherokee forum before I made an uneducated purchase of a 2000 Cherokee from a lying douchebag and it blew a head gasket. Anyhow, I came across this hose wrapped in heat resistant foil that is not connected to anything. It is cut off just below the firewall and I cant figure out where it is supposed to be attached.

Thanks!
Name:  laughing2.gif
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Size:  11.1 KB Vent for front axle.
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Old Sep 17, 2022 | 11:48 AM
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Hi ,
I found a similar pipe on my 92 xj 4.0 the other end goes into a steel pipe .Does any one know what this is?
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Old Sep 17, 2022 | 01:14 PM
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If the tube heads rearward, it might be the vent for the gas tank to the canister on the passenger side of the firewall. I'm not sure which side of the engine that comes up though, I was thinking passenger side.
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Old Sep 18, 2022 | 12:49 AM
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Originally Posted by lawsoncl
If the tube heads rearward, it might be the vent for the gas tank to the canister on the passenger side of the firewall. I'm not sure which side of the engine that comes up though, I was thinking passenger side.
Thanks ,This is RHD cherokee and yes the pipe is on the passenger side , rear part of the engine . And the steel pipes along it are brake pipes but I can’t figure out where this goes. It doesn’t go into the canister .

My jeep starts but when I press the accelerator it dies . If I disconnect the map sensor and the press the accelerator the engine revs .
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