Ford 7.3L Power Stroke (1999-2003) :: How To Switch Out Of 4WD When ESOF Is Broke
Sep 4, 2016
My ESOF crapped the bed as the truck was stuck in 4 Low. I took the transfer case motor switch off to access the gear underneath it.
I'm able to get vise-grips on it but it only turns clockwise. It keeps turning to a point it won't turn anymore and, if I let go, it will switch back to its original position.
I can do without 4WD until I get ESOF fixed, but is there a trick to manually changing it to 2WD?
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I have my vacuum system back up and working and using my vacuum pump I determined my lines are all good. They hold a vacuum fine, but my ESOF isn't engaging my hubs. I guess that leaves either the selector on the dash or the seal at the hubs.
If it is the selector, I should just be able to just disconnect the vacuum line at the selector and use my pump to engage my hubs. How much it is supposed to take to activate the hubs?
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I am thinking on installing a shutoff in the vacuum line that supplies the hubs so I can use 4LO for backing uphill with a trailer without having the hubs engage. Its either that or a switch to disable the PVH solenoid.
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I was hearing a clicking noise on my passenger front wheel when rotating by hand.
Paul suggested I remove the ESOF hub and see if it is the wheel hub or the ESOF hub. It's the ESOF hub.
So I'd like to rebuild it for sure, it also has a nicked o-ring, so that accounts for part of the vacuum leak
I'd like to service the driver's side, too, while I'm at it. It doesn't exhibit any issues, so just regular maintenance stuff there.
Parts lists?
As always, I'll take pics in return
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How to diagnose a vacuum leak without a vacuum leak diagnostic tool.
My ESOF won't engage, AC/heat blowers default to defrost - classic symptoms. And while we can leave without AC/heat, we really need the ability to engage 4x4 low, especially as we get higher into the Andes and the roads become rough.
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My shift indicator switch on the trans seized up, so a local trans shop replaced it for me. Now I get no low range when I select it. I understand it needs to see the truck in neutral to do this, is there a simple adjustment? The trans shop is a long way away.
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Moving my worldly goods from California to Oklahoma in a rented 26' box truck with my wife following in our '02 F350 loaded to the gills with my lathe, mill, air compressor, weld and assorted machinery. Just west of Deming NM it started to blow lots of white smoke and down on power. Some rattling noises from the engine when throttled up & won't reach 3000RPM.
Had it towed to an impound yard for storage. Plan on sending a flat bed to pick it up when we get to Tulsa.
Any experience with a tilt back trailer capable of loading & transporting this truck that weighs around 17,000 pounds? My plan is to continue on to Tulsa & make arrangements from there.
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Well i had an exhaust leak on this F250 and so I started torquing the bolts on the manifold to the head. (45 ft.lbs) A couple were very loose so I was thinking "Great, this may fix my problem!"
My first mistake was probably the Harbor Freight Tools torque wrench.
I am on the driver side, second from the rear and then bang! I see a gaping hole where the bolt used to be. Bolt on the floor. I cant see up in the hole to the head, I think it broke flush with the head.
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Need to kow if just unplugging ebpv sensor will work? Broke mine while removing turbo.
Do I leave rods disconnected? If not how do I make this work without the delete?
Will probably modifiy later on but need truck back running right now have a load to deliver MOnday
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Went to start 'er up, key spun forwards, power came on but no start, no click, nada. Turn key back and power stayed on, back forward and no resistance whatsoever power stayed on. Took screwdriver, jumped starter relay and viola away we go. Get home, get cylinder out of hole and the tip is broken off down in the column. BTW, had to disconnect batteries to shut it off. I drilled hole in the tip still in the column, insert screw and no come out. Must need to be turned somehow first I'm thinking.
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I have an early 99 f350. when i got the truck the OD switch(maybe light too) didn't work. i ran it for about 1k mi. yesterday i left work to come home and i didn't have 1st or 2nd gear but still had 3rd and od. the only way to get 2nd is to manually put it in 2nd gear. 1st seems to be nowhere around.
I do not have a code reader and wont for at least a month or so. I did install a simple ts6 in it, that's about all i did with the truck.
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I seem to have a glitch in my ignition switch box or column. Most likely in the column itself. Whats the recommended course of action here? Contact cleaner and then white lithium grease in the column? Can WLG be used on the ignition switch box itself, that's bolted under the column?
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So was replacing my power steering pump get all done and my headlights start flickering and then stay on the switch is off it does have DRL on it but they have been unplugged for about 10 years what do I need to check
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New to these trucks so a quick question on the window switch controls. I put power to the truck for the first time in about 8 years. First thing i wanted to do is see if the power windows worked. Everything went down very nicely but getting them back up was a no go from the driver seat. They all worked well seperatly but not from the pilots seat? Is it a typical issue with these trucks? When rocking the switch I can hear a relay under the dash panel close to where the access panel for the fuses. Mirrors work as well as do the locks. I pryed up the switch panel and un plugged it and reinstalled it with no luck. As it is I cant get the driver side window up or the passanger window up from the driver side?
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I have a 2001 F250 4x4 and the ESOF switch not engaging hubs, currently I have no 4x4 lights coming on in the cluster when i turn the switch. I am not experiencing any of the vaccum symptoms that most people are suggesting. I When I turn the switch i also do not hear any relays clicking. Relays have been tested, and i waited for the 45 second transfer delay that the manual mentions. ESOF switch has power, and is working properly (I know because I bought a new one in attempt to fix the problem) Basically I have no responses from any of my 4x4 indicators or parts.
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Not near my truck at the time and wondering if I can install one of these switches. I don't know where the 2 positive battery cables meet.
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I know this is going to sounds lame, my wife can't turn them, they have cover over it that has to be unscrewed to get at 'em. It would be nice to shift in and out "on the fly" as weather condition change.
Is it a difficult change?
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I have the 4r100 transmission how do I bypass the safety switch? Also what are your thoughts on starting the engine with the transmission out? I know to bolt the spacer plate to the engine.
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After disassembling what felt like the whole front end of the truck, I finally gain access to the danged thing. Mine has been acting up intermittently for about year and half I guess. When flipping to switch to signal turning, it started making a buzzing sound. At first it was doing it most of the time. Then it cleared up and started working right for several months, then act up, the act right. Well, now it makes the buzzing noise more often than not so i decided to address it. I went to Oreilly, they didn't have one, but told me the part number.
I went across the street to Autozone, that had one on the shelf that was same part number as Oreilly. I put it in and when flipping the switch, the relay does it tick tock sounds like its working, except for there is no indication on the dash cluster that its working, nor are the actual lights working. I swap back to original and buzzing, put in new one and tick tock but no lights. Whats the deal? Is this one of those things that you have to go back to Ford? Or maybe i got a bum relay from parts house and should exchange for another to see if it works?
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When I position the switch into 4x4 High or 4x4 Low the dash lights do not come on. Also, I have a vacuum leak at both hubs.
I tested the vacuum lines from the ESOF solenoid (or whatever it's called, the box on the fender where the vacuum lines originate) and I don't have any leaks in the lines. I put the Mighty Vac straight to the back of the hubs and I definitely have leaks at both hubs.
So, why am I not getting the light on the dash, and why do I have leaks at the hubs? FWIW, I replaced both wheel hub assemblies in March, and everything worked fine at that time. I'm hoping the yellow o-rings are still good. Is there a chance I lost torque on the four bolts behind the hubs causing a failed seal? Is there a seal on the outside of the hubs that could've failed?
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Is there a way to repair an individual switch on the drivers master window switches, or do I I have to replace entire 4 switch and window lock set?
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