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.
View 2 RepliesI 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.
View 7 RepliesI 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.
View 8 RepliesI 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.
View 4 RepliesMy 2002 X won't shift into 4wd. The dash light comes on, but only my rear wheels are engaging. Trying for a half hour, I intermittently was able to get it into 4LO without the front wheels engaging still, but it took me a long time to get it out of LO. While in neutral, I would switch the dash selector out of 4LO into 4HI and it wouldn't switch. Id move the truck a few feet forward and then back and try again and finally got it out of 4 LO, but it went back to just the rears, even with the 4x4 HI dash light on. I replaced the ESOF hubs with warn hubs a few months ago, so the ESOF aren't the problem. The only thing I didn't do when I swapped out the ESOF was plug the vacuum lines, would that affect manual hubs? I am visiting relatives in eastern WA and it has snowed 5 inches in the past few hours. I need to make it 180 miles home tomorrow.
View 3 RepliesI bought my 2004 F150 about a year and a half ago and the cruise has never worked. I have checked the fuses (02, 14, 15) and all are good. I tried the diagnostic route with holding the off button but no cruise light ever comes up on the dash. You do have to push the brake to move out of park.
View 5 RepliesAbout 45 seconds after start up Battery light on dash illuminates. Gauge shows in good range. Fluke meter across battery terminals reads 14.2 - 14.4 volts at idle with lights on high beam. No TDC's.
Truck is new to me, engine was replaced recently so I did do a check of harness connections with no problems found, what I should check next ?
2004 Lariat ... My cruise isn't working, won't even come (no light on dash). I tried the self test where you turn the ign on with the E-brake on and try holding the cruise off button to enter some kind of diag mode but it didn't work. I found a video on youtube where a mechanic replaced some pressure switch on the master cyl but my master cyl doesn't have what the video showed. I read somewhere about the 3rd brake light having something to do with it. FWIW, my 3rd brake light does not work.
View 7 RepliesI recently purchased an 07 f150 lariat leveled 4x4. I noticed the other day that all at once, the abs light and parking brake light came onto the dash, 4x4 low doesn't work and just stays in high and the ac doesn't blow cold. I'm assuming this is somewhat connected considering this all happened at once but really just not sure.
View 1 RepliesMy 2004 F150 has a weird bug related to the seat belt sensor - it only reads the seat belt condition when the truck is first started, then ignores it the rest of the time. Not a big deal so long as I remember to buckle up before starting it. I tried to do the routine of turning off the chime, but because it doesn't read the seatbelt condition after the key is in the run position, it can't be performed. Likewise, if I start the truck buckled up and then unbuckle once its running, the seatbelt light does not illuminate on the dash. Certainly an easy enough work around, though rather odd. It's not a symptom of anything else, is it?
View 3 RepliesLast night battery light came on. Drove 40 miles home with lights on. Today, it started so I headed out. About 10 miles of battery light on, gauge fluctuating mildly either side of middle, gauge suddenly drops dramatically. I turn around and head back. After a mile or so there's a terrible growling under the hood, sounded like it could be an alternator bearing. Just as I pull over, the noise stops but entire dash goes black. Popped hood, alternator spinning quietly and not hot. I drove back and it started stumbling and surging as the battery died and it finally quit almost all the way back.
I have battery on charger now. I assume the BCM is the regulator by feeding current back to the field? If so could the growling be the BCM feeding back a huge field and the rectifier bridge growing? And the BCM fuse blew because too much current to alternator field coils? Will it start with a charged battery with the BCM dead? I need it to run to get to the parts place. Which fuses do I need to check? Then, how do I check the alternator, wiring, BCM regulator to find original problem?
I have a 07 Lariat with vacuum 4X4 switch. Goes in and out of 4 Hi and Low however dose not light up on dash for 4 Hi only( 4 Lo lights up ). Is this the beginning of a vacuum leak or bigger problem?
View 3 Repliesi 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.
View 1 RepliesThis happened last year right at the end of winter and than stopped during summer, just started back up today, just so we have all the info- my airbag light in cluster comes on and airbag off light come on above radio and both turn off. Once the truck is started a very loud ear piercing single tone comes from under dash (130 dB at least) this can range from 5-30 seconds depending on how cold it is outside.
View 10 RepliesI just installed a set of HID conversion kit on my 2005 F-150 STX. It is only one beam bulb so therefor I have no high beams. Also, to remind you I have fog lights on the truck. My question is, when I turn my head lights on, and pull the switch to turn on the fog lights, a "blue light" indicator lights up on the dash. It is the high beam indicator and why that is lit. As far as I remember, that light never came on before the install. You have to excuse me since this is my first truck ever and I just got it back after having it repaired at the body shop the last two months. So technically, I only had the truck for 2 months....Just curious whether the blue light is suppose to be on when the fogs are on the dash.
View 14 RepliesI 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?
View 7 RepliesMy '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.
View 3 RepliesI started to feel the brakes get spongy. So I pulled the master cylinder forward and turned the 7mm about a half turn. Also noticed the brake fluid level low. I topped it off. Drove down a steep hill....red dash brake light comes on.....plow truck stopped at the base of hill with on coming car. Used emergency brake.
The down side is that I don't have a dry area to pump and check where the leak is. The up side is I have a 2nd car to drive (yaris).....the truck only has 45k miles on it. Where is that area that is prone to leakage on these trucks....... 2004 heritage 4.2 v6 with stick shift.... only 45k miles ....
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?
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 ....
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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