nw_david Posted December 16, 2008 Share Posted December 16, 2008 been i while, but here's my problem: my car will not go into 4wd. i hit the button and it does nothing, no noises or anything. i searched a bit and have concluded to check the vaccuum lines/tank thing (the white one right behind the strut tower. right?) and the lines going from it. my main question is if anyone else has had this issue, and what was wrong? thanks all ps - never realized how horrible fwd is in the snow till now lol Quote Link to comment Share on other sites More sharing options...
MilesFox Posted December 16, 2008 Share Posted December 16, 2008 this is a common issue. generally it is caused by the skinny vac hose that runs to the manifold is accidentally disconnected when you get unbder the hood to do some minor maintenance. it is easily unnoticeable. also, a symptom of this loose hose will be the vent selector only blowing out of the dash vents on any setting. the skinny vac line comes from the intake manifold on the passenger side and runs along the strut tower. it will be spliced with a reducer between the intake and the canister itself. otherwise, if the vent selector itself is working, suspect the vacuum switch solenoids, which are located behind the driver strut tower. there will be lines from the canister and from the solenoids to a diaphragm on the transmission. be aware of an audible click to determine the solenoid is working. you should hear a click each time you turn the 4wd on or off, since there has to be vacuum to the diaphraagm to move it either way for both the on and off positions Quote Link to comment Share on other sites More sharing options...
nw_david Posted December 16, 2008 Author Share Posted December 16, 2008 ok that might be a clue. i know that click sound that i should be hearing, and im not hearing it now. so do those solenoids usually go out? Quote Link to comment Share on other sites More sharing options...
nw_david Posted December 16, 2008 Author Share Posted December 16, 2008 all good now, thanks for the help. a mouse made a home right inbetween the left strut tower and firewall while i was away at college. he chewed the vacuum line right in half. i just rerouted the line a bit and now my 4wd works. Quote Link to comment Share on other sites More sharing options...
oskar_subaru Posted December 17, 2008 Share Posted December 17, 2008 all good now, thanks for the help. a mouse made a home right inbetween the left strut tower and firewall while i was away at college. he chewed the vacuum line right in half. i just rerouted the line a bit and now my 4wd works. so you let the mouse stay ? Quote Link to comment Share on other sites More sharing options...
nw_david Posted December 18, 2008 Author Share Posted December 18, 2008 so you let the mouse stay ? haha - hell no. I cleaned it right up Quote Link to comment Share on other sites More sharing options...
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