Need help..4 wheel drive wont engage!

ok guys 2007 Tacoma 4 wheel drive wont engage at all. and the 4 Lo light just keeps blinking. I pulled the vac line off the transfer case actuator and I don't feel any vac. It is a vac line correct??? Im new to this truck...its my bro inlaws and we need this fixed fast. Thanks Mike

 

where does the other end 0f the vacuum hose connect to?

 

Are you sure you're going through the correct steps to engage 4WD ?

 

there is no vacuum to the transfer case.... that lil hose is a breather line. everything is electronic.

To get into 4 low, first get into 4hi (you can do so at less than 60mph by flipping the switch to 4hi). Then come to a stop, switch to neutral, then switch to 4low, let it engage, then put it back in drive.

 

I guess we have a bad actuator. It wont go into 4 wheel drive no matter what we try. And yes..I know the steps to get it in 4 wheel drive. It was working fine till it got really cold outside.

 

Kinda off topic with a manual is it necessary to go to push in the clutch while transferring to 4wd hi and low? If I don't it clunks in and out of 4wd.

 

Be sure to check all your fuses as well ....

 

Mine will get angry and beep and won't shift if I don't depress the clutch going from 4Hi to 4Lo or vice versa. But going from 2Hi to 4Hi or vice versa I switch back and forth all the time, moving, not moving, accelerating, coasting, in gear, out of gear, clutch in or out, it really doesn't matter.

But Lo to Hi I have to have the clutch in as if I'm starting the truck and I the one or two times I shifted while moving (like 1mph since you need to be 2mph or slower) I got a clunk so now I always just completely stop since it's always a smooth shift when I'm stopped.

 

Mine clunks when i stop to I've had it maybe one time where it didn't everything is greased to