Well I guess that I spoke to soon. Although now the front pumpkin works fantastic the 4wd still does not work. Reffering to the diaphram under the battery tray I have no vacuum at that point. I tried to follow the lines back but im not sure I found the right spot. If I am correct it goes to a spot on the transfer case that 2 other hoses also meet and go down into the transfer case. Is that the vacuum hose I am looking for? What should I do to diagnos the problem?

 

I'm not sure how that part works but there is a vacum relay connected to the transfer case. I hope someone can help with that.

 

Thats actually all the info I really need. I will find it and check it.

 

I have a 2001 Blazer 2 door 4 wheel drive, When i start my car in (2 wheel drive) and sit there for about a min in park, My blazer automaticly shifts itself into 4wheel high then drops to low by itself. What could cause this? i have push buttons for the 4 wheel switch, I decided to take the fuse out in order to stop the truck from going into 4 wheel while driving.