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4wheel drive not engaging

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  #11  
Old 12-29-2012, 10:17 PM
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Ok so I jacked up the truck, then put it in 4 wheel and was able to spin the pass side. So where from here?
 
  #12  
Old 12-29-2012, 10:32 PM
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Ok so the next step was to turn the drive shaft? I don't understand it def shouldn't turn while the back wheels are on the ground?
 
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Old 12-29-2012, 10:54 PM
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Originally Posted by dhvaughan
next step is to crank the truck and test for vacuum on the 2 lines at the cad. label them first. you should have vac on one line in 2wd and the other when the t-case shifter is in 4wd.

if vac is wrong, work backwards and fix the vac. if vac is correct, work forwards and fix the CAD.

go ahead and start spraying the 4 little cad bolts with penetrating oil like PB-blaster or other. those little bolts like to break which makes this sucky job even more sucky.
^do this
 
  #14  
Old 12-29-2012, 10:54 PM
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Did you pull the two vac. lines from the CAD and check them for vacuum with the engine running?
 
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Old 12-29-2012, 11:10 PM
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Haha ok best case scenario vacuum lines were just pulled out of the cad lol I feel like a dumb a** but I have a red and a black line and I don't know which goes in which hole? I thought they were electrical wires at first but they were the lines. Anyways how do I reattach them and which goes in which hole? Do they need a glue or something or just slide them in
 
  #16  
Old 12-29-2012, 11:23 PM
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they just slide on the the ports.

just guess. with engine running and passenger side front jacked up, and t-case in 2HI - rotate passenger tire. it should turn freely. then test in 4wd. front passenger side tire should be locked to drivers front.
 
  #17  
Old 12-29-2012, 11:24 PM
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Red one goes on the passenger side. Mine go to a harness that has two short hoses that slip onto nipples on the diaphragm housing and are held on with hose clamps.
 



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