Ford F-150 (2004-2008) :: 4wd Not Engaging Properly Only Light Works
Mar 22, 2015
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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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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I just put a brand new engine in my 2004 f-150 4X4. Truck ran fine for two days. Yesterday I started the truck as usual put it in reverse. As I was backing up it just stopped running no warning nothing just stopped. All electrical still working fine gauges radio etc. When I turn the key I get nothing no starter nothing. The security light continues to flash slowly even when the key is turned on. Basically the best way I can describe it is. The truck is acting like it is in gear when I turn the key. And the odometer reads check gauges.
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As the title states, my odometer back light works just fine, but nothing displays on it. No mileage reading, no nothing. How to fix it? Found plenty about fixing the back light, but can't find anything similar to this issue.
I've had the battery off for 30-40 minutes and the issue persists after restarting.
2004 F150 XLT SuperCab 5.4L
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I have a gen II Prius 2007 with 115,000 miles on it ...
When I use my brakes at low speeds under 15 mph, there is a bit of extra brake travel before they engage properly ...
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My 2006 F150 was purchased by me in early 2009 with about 28,000 miles on it. It's an XLT crew cab 4X4 with the 5.4. Stock except for a leveling kit and an aftermarket head unit. It currently has about 59,000 miles and has been babied since I purchased it. About 3 years ago I started noting some issues:
A. Oil pressure dummy gauge is all over the place. Some times it will show no oil pressure. Other times it is all the way to the highest mark. Other times the needle has gone 180 degrees past where normal is and is actualy pointing straight down towards the floor.
B. Recently my alternator dummy gauge has started doing the same thing as my oil pressure gauge.
C. The backlight behind my odometer works intermittently, but mostly not at all.
D. My dome light will flicker when first turned on. It doesn't matter which door is opened or if the override switch it turned on. It takes several seconds to come on and will flicker like there is a poor connection somewhere, but stays on once its on.
E. Blower fan will occasionally stop blowing. Once the climate control switch is turned to off, then back to on it resumes working. This doesn't happen often, but does occasionally.
Fortunately, the truck has not left me stranded and I want to keep it that way. We are getting ready to sale my wife's Toyota and this will become her daily driver. I want to take care of any issues before she starts driving it. Are these all separate issues or is there one common issue which could be causing them all?
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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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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 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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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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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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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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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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I have the shifter lever set-up. Goes in to 4x4 nicely, but back to 2-high, the dash light goes off, but you can still hear the gear whine in the T-case. Lay off the gas, it's still in, Rolling and go to neutral (get the load off) its still in. Come to a stop and go into reverse for a foot and you can hear the hubs pop out. I think they just need to be used more, but is there anything to "lube up" to make unlocking like it's supposed to?
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My 2008 F150 Super Crew Door locks use to work like this, When you pushed the unlock button on the key fob once it unlocked the driver door only then if you pressed it again it unlocked the other 3 doors. A few months ago it started unlocking all 4 doors with one press. The owners manual does not show this as a option and when I had it at the dealer for brakes they tried to get it back the way it was but could not figure it out either.
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I have had my 2004 F150 for 2 years now and the dash display has never worked properly. For a winter project I would like to fix it. So far I have deducted that it is not the bulb behind the panel because if I slide the dimmer switch to turn the interior light on the dash is lit up like a Christmas tree.....like it should be....but, I have to slide the dial down to turn off the interior dome light and the dash is veeerry dim. It is annoying as all get up. Is there a way to replace the dimmer switch with a strickly on/off for the dash lights? I don't see why the dash dimming is even an option.
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My fuel gauge is not working properly. I ran out of gas while going down the road with the fuel gauge still at 1/4 tank. What do I do to fix this problem?
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I have a 2008 F150 Super Crew 4x4 when you press the unlock button on the remote all the doors unlock, it use to be one push for drivers door and two would unlock all doors. I think the problem started after I had the battery changed out, how to get it back to one push for drivers door only?
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My 2004 with 5.4L Lariat is struggling to keep me cool. The AC works fine on mild days but when it gets into the upper 80s it works for about 10 mins then goes warm. If I shut down the AC for about 5-10 mins. it begins cooling again.
I first tried a retail charging kit with no improvement. Then I had the system drained and refilled with die to look for leaks, but neither had any immediate impact. So it is not a leak, but something else failing.
What are the next best troubleshooting steps for an AC system?
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5.4 V8... A/C works for 30min. then stops blowing cold air. Turn system off for 15min. and it will blow cold air again for another 15min. then stops again. Passenger floor area gets cold and can hear fan blowing but no air coming out of vents.
In winter now and stops blowing hot air after 30-40min of driving. Turn system off for 15min. and will blow hot again. Had new A/C compressor and a/c clutch installed back in summer.???
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