On my 99 lariat the 4x4 does not engage. It's got a electric switch on the dash. The 4x4 light comes on when I turn the key on for 3 seconds. But when I turn the switch I got nothing and can't hear anything trying to engage. Where to start or how to test the switch?
View 3 RepliesWhat are some simple checks, my 4x4 low range does not engage, just stays in 4 hi. 2003 f350 screw v10.
View 5 RepliesSo sometimes the 4x4 takes awhile to engage. Both hubs are free turning (manual to auto). Drivers side only holds a few psi of vacuum. Passengers side 20ish. All seals have been replaced. Was tested right at the nipple on drivers side front. Switching hubs from side to side didn't change anything. 2 mechanics are unsure what to do aside from take a chance at replacing the wheel bearing. It does eventually go into 4x4 but takes awhile for 4x4 to engage and light on dash to come on.
View 14 RepliesMy truck: 2001 F250 V8 Triton Automatic 4x4
Problem: 4x4 won't engage
Symptoms: No dash lights....nothing happens when I turn the 4x4 switch. When I start the truck I hear what sounds like a motor (transfer case motor maybe?) trying to switch (even though my dash switch is on 2WD)... It tries three times and stops.
What I've done: Checked fuses ...they appear ok to me
I don't have a maintenance manual yet ...
The 4x4 used to work up until about 2 weeks ago. Started having a hard time getting it to go into (and out of) 4x4 and then it just stopped all together.
2008 F-250XL, 5.4L V8, 5 speed auto, 3.73 rear.
Two/haul fails to engage and does not light up dash indicator light from time to time. After 4 or 5 tries it usually will engage normally. No codes.
2005 F-250 King Ranch Diesel ... My truck when I got it the 4x4 wouldn't engage. I replace the front inner seals, and the lock outs. Still wouldn't work. Took the shift motor off and freed it up and it worked fin till today. Changed the shift motor and still nothing. This truck has been nothing but problems since I have had it and now this ... Truck is going on the market soon and would sell better if the 4x4 worked ...
View 13 RepliesHow 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 unsmooth.
F-250 2005 XLT 5.4L 4X4. Had ford for a few years now (Escape as a personal vehicle and econoline as business vehicle). Now I'm having a little problem with 4x4. It wont engage. Worked fine last week and now nothing! I did check all the fuses and when i switch to either 4Lo or 4Hi I can hear a clicking sound behind the switch but feel like it's getting blocked or something. Tries a few time then stop...
View 14 RepliesI have a 04 ford f250 superduty... I tried to use my 4x4 today and the front wheels would not engage using the ESOF. The light comes on in the dash saying its in 4x4. i do not believe i have a vacuum leak because it doesn't switch over to the automatic setting for defrost. what else could it possibly be I'm stumped at this point.
View 14 Replies4x4 will not engage. 4x4 light on dash does not come on. Can not hear motor switching into 4x4. Check fuses under dash all looked good.
Truck is a 2004 F250SD V10 ....
I have a problem on my F250 4x4. The 4x4 doesn't engage from inside. I tested for vacuum on the pipe that leads out of the solenoid. There seems to be no vacuum building on the outlet line. This is the line that go to the wheels. Is my solenoid stuffed. the pump works well and vents do not default to defrost.
View 14 RepliesI am considering buying a 2001 Ford F250 Super Duty XLT 4x4 V10 engine tomorrow. I am hesitant because I cant get the 4x4 to engage. It goes into 4x4 low and high and the front driveshaft spins but it wont engage the wheels. One side locking hub locks but the other side the locking hub is cracked off and so I there is no way to turn to lock that side. I will of course replace the Locking Hub ASAP if I buy the rig but my question here is, if one side is locked should one side of the front axle spin, meaning if only one side Locking Hub is locked should that wheel turn and the other not? Both are not turning but as I said the driveshaft is spinning.
I don't know if both sides need to be locked in order for the front wheels to engage while in 4x4 high or low. Or if one side should engage if only one side is locked; the wheel that's locked of course..
2001 Ford F250 XLT Super Duty 4x4
V10 engine...
Basically I have a 2008 f250 (6.4l if that makes any difference) That wont engage into 4x4. When you go to turn the switch to engage the 4x4 all you get is a click click click click click. Is that a problem with the 4x4 shifting solenoid on the transfer case? Anything else to look for? The truck has 95k miles on it....
View 2 RepliesI have a 2005 F350 6.0 with 4 wheel drive.
Late last winter, the 4WD stopped working. I diagnosed it to be a vacuum problem. Like a moron, I purchased a vacuum pump and threw it in there, I just figured that it was bad. It turns out the new pump I bought was bad, but the old pump was fine... Go figure. At any rate, when I switch to 4WD, my HVAC goes to full defrost and the 4WD does not engage.
I think I've narrowed the problem down to the 4WD actuator, since if I hook the vacuum pump output directly to the hubs, the 4WD works fine. If I switch it into 4WD, I can hear the vacuum releasing in the actuator, but it doesn't seem like any vacuum actually gets routed to the hubs. It just opens to atmosphere.
I've noticed that after switching to 4WD, the actuator only "Releases" the vacuum for a few seconds, and then seems to close itself. Is this normal? If I cycle the 4WD selector from 2WD to 4WD repeatedly, it will continue to cycle.
1. Is there any way to service this valve, or should I replace it?
2. Is the valve acting normally?
3. Am I on track with this repair?
2001 F250 SD 4x4,V10, auto, 156K miles
Truck was idling getting ready for work. Went into the Garage to grab my coat. on the way out heard a TERRIBLE noise, and the headlights dimmed down a bit.
I heard the noise a 2nd time, it was the starter trying to reengage! I promptly shut it off and waited a few minutes, but the same thing happened!
I pulled the control wire off of the solenoid, and (still running in Park) everything seemed "OK". To see if the solenoid was bad/stuck, or if there was still voltage on the control side, I touched the connection,and with the engine still running, the solenoid re engaged!
"Something" is telling the starter to 'start'! When I shut the thing down, and pull the key, it seems normal EXCEPT I can faintly see the Battery, and ABS lights illuminated in the dash cluster. I pulled the negative Battery cable off, and that is how it sits right now. Very strange to me. The truck ran great on a 5 hour trip just this past weekend.
Looking for a legit wiring Diagram for this year of truck?
2011 F250 6.7L Powerstroke, automatic tranny, Electric Locking Diff
When I engage the On the Fly 4WD switch the indicator panel says "shift to 4x4H in Progress" and everything seems fine but if I am not moving forward when I shift the 4WD doesn't engage. The engine revs up but nothing happens. When I release the accelerator the transfer case bangs like it is going to rip out of the truck. In reverse it is even worse. I am lucky that I didn't gun it or I could have done allot of potential damage. All my other Ford 4WD vehicles engage immediately from a full stopped position. This is quite of troublesome because if you have to shift when your stuck in the mud, your still stuck. If I shift while moving forward it works just fine.
My question is: Does this particular model (2011 F250 6.7L Powerstroke with an automatic tranny) have to be moving forward in order for the 4WD to engage?
I have just switched from GM to Ford and have a new F250 4x4 XLT. I am wondering how to engage 4 wheel drive correctly. I have the manual shifter and the manual lock hubs. However during my test drive I shifted the lever into 4H and 4L and it seemed to engage just fine. Do I need to lock my hubs as well? Or if im just in a wet spot can i just shift into 4h without locking my hubs? I know if I am in anything serious I need to lock the hubs. I just want to be sure before I get into a tricky situation. My 02 GM all i had to do was push a button and it shifted automatically.
View 7 RepliesMy 4wd doesn't engage on my 04 powerstroke. The dash light doesn't come on. I replaced the relays, switch, and 4wd module, I checked the fuses, all fuses are good, but fuse 31 doesn't get power to it. The voltage at the relay block reads 12v with the fuses out, but drops to around 7v when they're plugged in. I have no power to the Tcase (.15v).
View 11 RepliesWell it's been an ongoing problem with my 4r100, but last week it all come to a point. Reverse delay is getting to near 10seconds then abruptly engages. My 1-2 shift is so soft I have to look down and see my tach to make sure it shifted up. I now have trans squeal during ever shift including OD. Also have a loud screech that gets louder the faster you go, BUT the old girl is still moving the truck and oddly the fluid isn't burnt looking or smells burnt? That's one has me puzzled...
So Tuesday after work I'm pulling the transmission (in the driveway) and bringing it to the shop Thursday. Getting a billet steel converter, having all the planetary gears upgraded to six and four pinion, one way sprag will now be solid steel instead of the plastic one Ford put there, all the bearings will be upgraded to Torrington, I'll have the 45 roller sprag bearing upgrade as well as the 17 roller for reverse, I'm going with Borg Warner and Kolen steels, new solenoid pack.
I'm having the pump pump machined and sonnex upgrades done to it, spiral snap ring on OD piston, case will be machines not hand resurfaced, reverse gear plastic washers will be removed and the gear is getting machined for a Torrington bearing and steel spacer, clutch drum will be machined for a 360 spiral clip, locking snap ring on the OD piston, center support will have some machine work done to it, and I'm having the forward drum plug removed and the hole will be tapped for a steel plug.
I have a 1999 F250 super duty that blew a front seal on the transmission two weeks ago. I sent it to a shop and they replaced the seal, and torque converter. However when they put it back in it will not engage in drive or reverse. After working on it several days we replaced the transmission with another one from a service company. This replacement came with a 90 day warranty. However once it was installed it does the same thing and will not engage in drive, or reverse. I am not sure what is going on but with two doing the same thing it makes me thing maybe electrical or something else.
View 1 RepliesI was using 4x4 High the other day and it was working just fine. Now today, I was at my first parking lot to plow and used the ESOF to shift into 4x4 High and it did not engage with the hubs being in auto mode. The lights on the dash show up indicating that I am, but I am still in 2wd.
If I manually lock the hubs, it engages 4wd high. I tried the same thing using the ESOF to switch over to 4x4 low and it does NOT engage either.
I also noticed that heater blower was switching over to full defrost even though I had it set on the floor setting (manual heat climate *****).
Does this sound like a vacuum leak? I haven't had a chance to test the lines yet. Btw, this is my second work truck and not the one listed in my signature below. It's a 2006 f-350 6.0 xlt.