socal1200r Posted February 14, 2010 Share Posted February 14, 2010 I locked the CAD, and removed what looked like two vacuum tubes on the CAD housing, and removed the wire that was on another part of the CAD cover. However, now that those three "wires" have been disconnected, I'm not getting any indication up on the dash that the truck is in 4wd. I should be able to just reconnect the one wire, and that'll send the signal up to the gauge lights on the left side to light up a 4wd indicator, right? I crawled under the truck, and there isn't anything left to connect to on the CAD. Does anyone have a picture of what the stock CAD looks like, with these wires still connected, especially the one that doesn't look like rubber vacuum tubes? If you could remove the one wire, so I can see what it supposed to connect to, that would be perfect. Link to comment Share on other sites More sharing options...
LEAD_NOT_FOLLOW Posted February 15, 2010 Share Posted February 15, 2010 It is controlled on the Transfer Case; not on the axle. Link to comment Share on other sites More sharing options...
Wildman Posted February 15, 2010 Share Posted February 15, 2010 :hmm: There are No wire on the CAD, just vacuum lines. We just went thru this the past week.......check this out, and see if it helps you at all - viewforum.php?f=2&start=25 Link to comment Share on other sites More sharing options...
mjeff87 Posted February 15, 2010 Share Posted February 15, 2010 no, some CAD models had a contact switch with a single wire coming out of them above the vaccuum connexion. I would ASSume that the switch inside the housing is NO, and when vac is applied and the fork slides over it closes to compete the circuit and illuminate the dash light. Most likely it's a switched ground, but that's just a guess. I'm not running any of the vac or wiring on my rig (shimmed over shift fork). Jeff edit: just snapped a pic, and the wires are orange.....I'd say it's a switched positive based on the wire color. Image Not Found Link to comment Share on other sites More sharing options...
socal1200r Posted February 15, 2010 Author Share Posted February 15, 2010 Okay, if the three "wires" that I had going to the CAD are all vacuum tubes, then that ain't gonna work to make the 4wd indicator light on the dash come on. Guess I'll just have to rely on the 4wd lever, and trust that the indicator on the console is accurate, since I locked the CAD. Link to comment Share on other sites More sharing options...
jpdocdave Posted February 15, 2010 Share Posted February 15, 2010 i know my 90 illuminates by a vacuum on the cad. 4x4 always worked, but i noticed a vacuum line off the cad recently, when i put it on, the indicator started working. Link to comment Share on other sites More sharing options...
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