Hey Gang,
This is my problem, When it is cold 4wd does not work. I have changed the fluid in the T-case and front diff, now I am running synthetic. I Pulled off the front actuator, it works properly. I blew into it and sucked into it and it slides freely. I have felt the vaccum that goes to the front actuator there is not alot of vaccum, just alittle. I have replaced the switch in the transfer case. When the switch was out I checked the vaccum, with the ball in the switch pushed all the way up using my thumb to press the ball while engaged into 4wd it has alot of vaccum. But, that is not what it feels like when in 4wd the vaccum feels like the ball is pushed only half way. So when I replaced the switch I took off the rubber O Ring gasket and RTV sealed it, thinking that the switch would sit lower. I adjusted the shifting lever so there was no slack in the shift. I have also blown out all the vacuum lines.
The transfer case goes into 4wd I can feel that. I took direct vaccum off the manifold and hooked it direct to the front actuator, pulled the transfer case back into 4wd, and it seems that the front goes in and out while I am driving 10-15 mph. Alot of loud clanging in and out.
So if my actuator is in fact bad is there something cheap I can do to ensure its in? Does anyone have any ideas what it is? What options do I have of getting rid of the vaccum to lock the front diff in? Help with ideas or cures!!!
Tim Fisher
91 YJ