vacuum switch on transfer case

[87jeepwrangler]

On my transfer case there is the vacuum switch and on the switch their are four vacuum lines blue,red,yellow,green. Where do they go and the red one on the switch it was burnt by the muffler does anyone know what each one does and goes to thanks please help :???:

ps would it be possible to drive on just the front wheels

 

[Bounty__Hunter]

The red one should be the vacuum source from the intake manifold. One is the vent that goes near the battery, blue IIRC. The other two go to the front axle.

You can drive on the front only, but I'd keep the speeds down and only do it for short distances. Be easy on acceleration.

 

[87jeepwrangler]

where on the intake is it? Is it at the end of the intake manifold by the fire wall because there is a hose that is been disconnected and caped of with a screw

 

[87jeepwrangler]

got it working thanks