Many thanks for all your help That's where I get my info too. If it doesnt work, call your dealer shop and they will tell you the correct sequence. In any case, If Fishing 76 is correct on his post, it was my Transfer case 4x4 shift motor that I tapped on. Only things left that could be bad are the solenoid, the check valve nearest the solenoid, and the vacuum box. The left side was less bad, but both showed evidence of water contamination. The spring should push the gears in, without the vac line on. The next day I had to limp home 200 miles with the hubs locked in.
If it turns it is a problem with the transfer case. My left actuator would disengage but would slowly leak and try to re-engage the noise. Lots of tacky black used to be grease inside. I eventually made it home, spent a couple hours reading forums, and 30 seconds the next morning to isolate the problem. So I did some searching to try and settle down the mass amount of 4x4 issues and I think this will help 90% of questions and issues!!! I couldn't back that up with anything other than my personal experience with my shift-on-the-floor 2003 model, what I've read here, and some common sense. K, I checked them with a ohm meter and did'nt find a blown one. I decided to go ahead and change out the transfer case fluid, everything went smoothly, no shavings in it, and no problems since then.
If it doesn't it is a front axle engagement problem. When I put the switch into 4x4 Hi nothing happens. Do they need to be replaced? I kept it pretty slow, but had pretty bad vibrations. Any help would greatly be appreciated. After I replace the solenoid, all is well and 4x4 work fine. I turn the switch on the dash to engage the 4 wheel drive and I don't think its engaging I don't see the light on the dash that says its engaged I also don't hear it engage.
. My four wheel drive is not working. I have the dash mounted switch to switch it into 4x4 Hi 4x4 Low. I have checked all of the 4x4 fuses and they are ok. Okay, I have a 2006 F150 4x4 5. The right one would not even compress by hand. Thanks, Joe I had a similar issue, I let a friend drive my truck, apparently he was out jumping it or something, and the temperature was close to 0, anyway, he somehow snapped both of the vacuum lines which caused the 4x4 to engage but no 4x4 light.
Checked the fuse in the fuse compartment and all the fuses are O. Ford '04 -'08 F-150 4x4 terminology 101. The right would not disengage at all. Fine for short use, don't try racing like this pushing a dead axle is a lot of I just replaced the solenoid on my truck because it was locking in the hubs while driving down the road. I was trying to troubleshoot it by flashlight, and couldn't get very far, especially since I didn't know the hubs locked in at any loss of vacuum. I had the same thing happen wth my 05 I put the transmition in nutral then tried 4x4 switch and every thing started working again.
If you are shifting into 4H, applying light throttle up to 55 mph shift on the fly is fine per owners manual. So, did the short time that I drove it hurt the gears really bad? Would be nice to find a good technical article on the system. Let me see if I can remember. I get the same symptom when the switch is placed into 4x4 Low. Or maybe I just misunderstood. Posted on Dec 21, 2009.
Check the vent line tube that is routed into the engine compartment with nothing attached to it , for blockages. A double rubber vacuum hose connects to the top of them. . But under alot of stress will the gears hold? I sped up to about 60 mph for a bit, and the fluid started bleeding out the overflow. The module on 04 - 08 is on the driver side of the engine, under the intake air tube, away from the inner fender.
Pull to a level surface, put the parking barake on, put the truck in neutral, shift to four-wheel drive, release the brake, shift to drive. I checked all of the vacuum lines to the hubs and they appear to be intact. Wow, what a confusing thread. Anybody know what would cause this? It has been many years since I did this. Yesterday I replaced both actuators. Newer style has a flat 'rain cover' that the solenoid is mounted to to protect it from water running off of the cowl. Lift and support the front of the so the front wheels are off the ground take safety precautions, chock wheels, jack stands, etc Key on, engage 4x4 and try to turn the front.
Does anybody have any suggestions on what I should check next? The next long drive I'll find out if all is well. The computer waits for this sequence. . . .
. . . . .