Ford F-150 (2004-2008) :: Four Wheel Drive Not Engaging
Feb 28, 2017
I have read through the folders and many websites on 4x4 problems. My problem has to deal with my four wheel drive not wanting to engage. It has nothing to do with the front end or solenoids. When I put it into 4x4, hi or low it will not send any power to my transfer case motor. It wont even illuminate any lights on the selector switch. I have checked all fuses and replaced any relays that have to do with the 4x4. Where I should go with this?
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I have a 2005 F-150 with ESOF. When I turn the switch to 4x4 or 4low the lights on the dash will turn on but the front tires will not turn. I checked all the fuses and they were good. I'm not very familiar with this 4x4 system, what the issue is or on how to fix it?
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My '05 F150 (92,000 mi) 4 wheel seems like it is engaging and disengaging when activated. Makes a clunking sound on light acceleration then quits when I back off the gas. Not sure if it is engaged then or not. I noticed this on a gravel road when I had turned 4x4 on to distribute oil around the system since I had not used it in a while. What it might be and if it is any easy fix or a trip to the shop.
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I have a 2008 F-150. When moving gear selector from park to either reverse or drive, trans has a delay engaging. After engagement, it runs fine, shifts ok, downshifts ok....
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I have a 2000 F-150 4x4 and the four wheel drive isn't working properly. It does work,but to get it to engage I had to drive in reverse for a couple feet then it locked it and everything was fine,pretty sure that isn't normal. What could be wrong with it? As soon as I turn the lights up on the dash,but the front tires don't spin.
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My selector switch does not light up when engaging four wheel drive on my 98 f150,could this be my GEM module gone bad ?
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My 4 wheel drive is not engaging on a 2001 F150. The indicator lites on the dash illuminate to suggest that the truck is in 4 wheel drive but sigh...it stays in 2 wheel drive. No gross sounds and the indicator lights are not flashing. Could this be a fuse or a relay issue of some sort. What else should I try?
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My 2011 F350 is not engaging 4wheel drive from the dash switch. When I turn it to either hi or lo it says "shift in process" but no 4 WD. It will engage manually from the hub lock, no problem. I know very little about 4wheel drive but am otherwise mechanically knowledgeable.
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I just noticed the 4 wheel drive on my 2000 Chevy S10 doesn't seem to be engaging. The traction doesn't get any better turning it on and the other day I got stuck on a hill and the back wheels weren't spinning. What I can check or look at to fix it?
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I have a 2006 F150 4x4 5.4L 43000mi. My four wheel drive is not working. I have the dash mounted switch to switch it into 4x4 Hi 4x4 Low. When I put the switch into 4x4 Hi nothing happens. 4x4 does not engage, and the 4x4 Hi light on the dash does not illuminate. I get the same symptom when the switch is placed into 4x4 Low. I have checked all of the 4x4 fuses and they are ok. I checked all of the vacuum lines to the hubs and they appear to be intact. What I should check next? What would cause this?
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I have a 07 f150 and while driving I have a vibration only in 4wheel drive high but not a bad one but when I take my foot off the throttle it gets worse as well as a rumbling sound!! this is only after a 6" lift was installed it seems and I have replaced both front drive shaft u joints thinking that was the problem but didn't solve the problem....
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I made a big mistake, I was cleaning out my truck and accidentally switched my 4 wheel drive to the 4 low position. Not knowing this I started the truck and just drove it all day. Then I noticed my mistake and now the truck will not shift into either 4 high or 4 low!
The truck drives just fine, I feel no pull when I turn to the left or right so it seems that it never did any shifting into 4 high or 4 low, so I'm looking for recommendations on maybe how to fix?
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(2004 f150 S.Crew 4x4) I noticed that my 4 wheel drive is not working. The front hubs won't lock in. The transfer case will go into 4 low but the hubs still won't lock in.
Anyway, I have pulled vacuum on both actuators and one of them won't hold. It's obviously bad, but is that why I don't have 4x4? It seems to me like it is not...
When I pull a vacuum on the actuator that does hold, it disengages the hub from the driveshaft allowing free-wheeling. Correct me if I'm wrong, but when the truck is running in 2wd, vacuum must flow to the actuators preventing the hubs from engaging? The actuator on the bad side is locked 'in' so the driveshaft always turns.
According to my train of thought, since the actuator has failed in the 'locked in' position, I should still have 4x4- What am I missing?
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Do a 2004 Saturn view front wheel drive transmission will fit in place of an all wheel drive...
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2004 Dodge Stratus 80K... What happened is my check engine light came on maybe 6 months ago and I took it to have it looked at and they were closing but the guy told me don't worry about it and I be ok until I come back and it probably wasn't a big deal. The light went off a day or two so I didn't worry about it. It came on about a week ago and I haven't had time to take it in yet. So here is the chain of events-
Check engine light (6 months ago approx)Check engine light off (couple days later)
Check engine light (1-2 weeks ago)
Put my car in drive, transmission didn't engage right away. I thought I had it in neutral by mistake. then it engaged.(about a week ago)
Same thing happened last night except it took longer for it to kick in and when I ran into the store and came out, it backed up ok but wouldn't go in drive right away. I thought it was because it was freezing) out and maybe needed to warm up better. (we had a terrible ice storm here in Washington).
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i have a 2007 ford truck and the 4wd will not engage the lights come on the dash showing 4 low and 4 high and it clunks when you turn the dial to either 4 low or 4 high but does not engage.
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I have a 2004 F-150 Non Heritage. The 4WD was working fine last year and is not working now. The light on the dash comes on and I do seen to be getting vacuum at the hub but it is not engaging. Several months prior to using the 4WD I did do some front end work and must have knocked the vac line off. It was off for several months, I reinstalled it and it is still not working.
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I have 08 F150 that the 4x4 is not working on.The light on the dash comes on and I can hear the transfer case engaging.I checked to make sure that I have vacuum to the switch under the hood and that the vacuum line going down to the front diff is holding vacuum.I'm just not sure how it engages the diff.
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2006 F150, SuperCrew with 5.4
I just replaced the firewall actuator valve for the hubs, and went to try out the 4 wheel drive. The hubs engage and lock to the axle shaft, the transfer case engages and locks to the front driveline, but the front differential isn't doing anything. Is there an actuator for the front or did something break inside?
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I have an 06 f150 xlt 4wd 5.4. I bought the truck about two months ago and have come to realize that my 4wd is not working. The light works and you can hear the clunk but recently we got alot of rain and i was going down a georgia clay dirt road and almost got stuck in the middle of the road. i tried 4hi and 4lo but only the rear wheels would spin. I had my wife put it in 4wd while i looked under the truck and the half shafts do turn in 4wd. which doesn't make any sense to me. I also unplugged to vacuum line from the intake and capped it off to try and let the hubs engage that way but still nothing. why would the half shafts be turning but no power to the front wheels in 4wd? does that mean the iwe's are stuck engaged? Which would explain why they turn all the time. But if they are engaged, whether they are stuck or vacuum leak or whatever the reason, shouldn't the front wheels be getting power.
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Here is my problem: A/C not blowing cold air, blower motor working fine, checked all relevant fuses for A/C and R202 relay under the hood. Everything is fine here. Next, low pressure switch, jumped, clutch does not engage. Next removed relay R202 (clutch relay) measured voltages (at female sockets) where pins 1 and 3 would go, voltage OK. Jumped where pins 3 and 5 would go (bypass to see if clutch engages) and it does. Appears that the pressure switches check out OK (low pressure and A/C cycling switch - although this one not sure). CarMD unit was used as well, and no codes generated so perhaps PCM is working OK? I'm stumped, as a loss of GND by PCM or perhaps a corroded or open wire issue??
Also, possible the A/C switch on the HVAC control could be bad, but the light comes on, (doesn't mean switch is good necessarily). The rest of that unit works fine, control ***** that is, fan speed adjusts properly, air flow looks good. It appears this is an electrical problem where the clutch is not getting juice but I don't know the source of the problem. However, I also noticed that when the clutch/compressor was running (temporarily as described above) cold air still didn't come out. This, I assume, would mean I would need to add refrigerant or re-charge the A/C AFTER I get the clutch to engage electrically. 2004 F-150 5.4L ....
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