auto locking hubs???
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auto locking hubs???
Hey all! This is my question. My front axle is not engaging? transfer case is but not axle, doesnt seem to be a broken vaccum line, tho there is two lines going to acuator i follewd them up to firewall were it doesnt seem to be a problem. Im thinking a fuse or somthing not telling them to lock in ,I do not have owners manual so cant check fuses under hood, and www.fleet.ford.com is down cant get a copy of manual, fuses under dash seem good! thx to anyone that helps!! 1997 f150 4.2 manual tranny msof
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From: Iowa
Ahh, i thought the MSOF was supposed to be M50D. LOL sorry. Im not as familure with the MSOF, but i think there would need to be a electronic sensor on the shifter somewhere underneath that tells the truck to put vacum to the front axle to lock the inner hubs.
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Im attempting to test the vaccum cylinder, If I grab it manually I cannot move it by hand!! hopping its my problem been working on this project for two mounths and the mustang doesnt leave the garage!! winter is here
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Fleet Mechanic
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I f you have a vacumn gauge, have someone sit inside the truck with it running and in park, and move the lever from 4H to 2H and see if you get any vacumn on either of the 2 lines coming of the actuator. You should be able to move the actuator. It may be just "froze" up. Take it off and see if moves freely with it disconneted from the linkage. Let us know
Rich
Rich
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you can just pull the two hoses off the actuator and start the truck. vacuum will be on one of them, swith to 4 x 4, vacuum will be on the other. If not, check the hose routing back to motor. If you have vacuum on both, then stroke the actuator. You can remove, clean, check and reinstall. You can also put a short hose on the actuator and suck on the end of the hose and see it move.
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cool thanks for the replys!! im taking it off after work and will post how it goes. those lines doesnt seem to come off to easy and didnt want to break them. If there is no vaccum could it be a fuse under hood? thanks again
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thanks to who all replied! Today i removed the two lines and manually switched the actuater,hooked it all back up and to my surprise my 4x4 is working! I hope it works all winter but if not I know were to look !! THANKS AGAIN
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Vaccum Hubs
If you have a vaccum gauge, check at the steering knuckle to see if you are getting vaccum. If you are, then aquire a hand vaccum pump with a gauge. Hook it to the spot where you took off the line on the knuckle. Usually it is a $60 seal that goes bad or the o-ring on the lock out itself.
