4 wheel drive vacuum lines
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Joined: Sep 2005
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4 wheel drive vacuum lines
I recently had the transfer case replaced in my '97 F150. The other day I noticed something hanging down underneath the truck. They are vacuum lines that appear to go to the transfer case. Looks like they melted somehow. I looked under the hood and it looks like they go to a junction block on the pass. side of the firewall. Am I correct and would these lines cause my four wheel drive to not work? Thanks in advance. 
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Joined: Dec 1997
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From: Windsor,Ontario,Canada
How big are the tubes? I would suspect the breather lines for the auto tranny and transfer case. Does your 4x4 work? Are you sure they go to the t-case? If they are faded red and blue they would be the center axle disconnect vacuum lines going to the front differential.
JMC
JMC
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Joined: Jan 2000
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From: Along Lake Erie
Originally Posted by JMC
How big are the tubes? I would suspect the breather lines for the auto tranny and transfer case. Does your 4x4 work? Are you sure they go to the t-case? If they are faded red and blue they would be the center axle disconnect vacuum lines going to the front differential.
JMC
JMC
Odds are they're the vent tubes as JMC mentioned....
-Joe