vaccum solenoid ??? 4x4
02-15-2010, 01:02 PM
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vaccum solenoid ??? 4x4
I went to the junk yard today and got 2 vaccum solenoids because i have power to mine but the 4x4 wont engauge so im gonna try this i got one off an expidition and one off a 98 f150 with shift on the floor, i have a 97 f150 with shift on the fly will these work i only paid 5 bucks for the both of them
02-15-2010, 01:13 PM
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no but i used a test light and have power to the solenoids and my transfercase locks the front shaft in and if i move the accuator by hand it locks 4x4 in i checked my vaccum lines and had no cracks of any kind but i still only get the 4x4 lights on start up
02-15-2010, 01:50 PM
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The vacuum lines are known to get brittle with age. By all means swap the solenoids but post back with the results. FYI the GEM grounds the solenoids to activate them. The one closest to the fender engages the front axle and the one closest to the engine disengages it.
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02-15-2010, 02:11 PM
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well i pulled the old one off and it was cracked on the disengauge side i put the 1st one on and got nothing but when i pulled it off there was air released fromt the disengauge side and not the engauge side that happend to both the new ones and i still have no 4x4
02-16-2010, 10:59 AM
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Have you thoroughly checked the vacuum solenoids on the firewall and the vacuum lines again? Even the smallest crack will cause you to loose vacuum and then it won't work.
