Ford F-150 (2004-2008) :: 2007 4.6L - Revving While In Drive At 20 - 30 MPH
May 14, 2015
I know nothing about vehicles as far as exhaust and tire size. But what i want to ask is what is causing my 2007 ford f150 4.6l to rev up while in drive while im just costing. see i was at about 20-30 miles per hour and almost to 2 rpms and repeatedly my truck would rev in the range of 20 to 30 miles per hour for about 1 seconds but would go back to normal after that rev. I rely on my truck for work and also while I was in Park at a target parking lot my truck began to rev up Wow and park I don't know what is causing this....
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This truck has been giving us problems off and on for a while now. Whenever I am sitting at a stop light for example and the truck is in drive but I have my foot on the brakes it acts like it's trying to lunge forward and the engine is revving and shaking the whole truck. My husband just drove it this morning and now whenever it gets really wet outside the truck doesn't want to go anywhere. He said he was flooring it and he was only going about 20mph and the engine looked to be shaking bad. I have no clue what could be going on?
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My wife and i have noticed over the last few months that our 08 has been revving higher, (much higher), than it used to when driving uphill. It has 65 k miles.
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I am afraid to drive my car on the highway and if I am damaging my car by driving it I want to make sure I hold the auto care shop that put the wrong size tire on my car responsible.
I have Bridgestone Ecopia EP100 BL tires size 185/65R15 on my 2007 Prius that I got in 2010. Because of a nail in one tire I had to replace one of the tires two days ago. The technician said they did not have the exact same tire any more but he would replace it with something comparable.
The next day I drove 2 hours on the interstate and the slip indicator light kept flashing, it felt like the engine was revving a lot and/or the transmission wouldn't shift when I got to highway speeds, and it was a little scary. My first thought was something with the new tire since I had absolutely no problems before.
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Transmission won't go into drive until I give it gas and then hard shift between 1&2 then a little slipping when I get on it in higher speeds , fluid and filter brand new, threw a speed sensor so code I replaced with new but no change, don't know what to do and can't find out why speed sensor code went off changed but didn't fix? Can't drive truck!!!
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My truck makes a noise that kinda sounds like i run over a rumble strip on side of the road when truck shifts down from OD to Drive.. only last for a second, sounds like it coming from under truck and not steering or wheel area... Plan on taking truck to tranny shop..
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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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2007 XLS Crew Cab 2wd. 60K miles When going through the 35 to 60 mile per hour range there is a vibration that seems to come from the drive shaft. Let off the gas and it goes away. After 60 mph it seems to be gone. I am thinking Trans support, motor support? One of the postings on this sight made me wonder about the transmission. By the way, I just bought this truck used and love it. Can I run flex fuel in the 4.6L engine?
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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 lost drive and overdrive. I have first and second and when I let off the gas pedal everything seems normal. When I am in drive with overdrive switched off and keep a steady speed it doesn't shift into drive. When I let off the gas in drive the tach goes to 1k and its like I'm in neutral. If I switch OD on it's like neutral and the engine revs. I have pulled the pan and valve body and do not see any metal.
OD snap ring is intact. Fluid looks good with no burnt smell...I'm thinking shifting solenoids but have not tested them yet. There is no grinding noise at all and no slipping in first and second gears. It threw cam sensors codes and I replaced both but I think that was from the neutral condition and test drove before dropping the pans and still no shifting to drive or OD. No transmission codes...
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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 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 have an 08' 4x4 with the 5.4. When i back out of a parking spot for example the rear end "Clunks" when i but it in drive and give it gas to move. Also does the same when your driving fwd, put it in reverse and try to back up. I had a 98' 4x4 ranger that had the same noise under same circumstances and it was recalled and repaired.
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Long delay bringing new travel trailer home last week. Shift cable not placed properly in retainer during assembly (there is NO way it popped out) and it was resting on exhaust manifold. Evidently towing camper made enough heat to burn through the shielding and truck trans would not move out of drive.
The good news is that I could climb under (getting too old for that stuff!) and put it into gear/park by hand. But of course I didn't know that for the first 4 hours.
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My 2008 F150 rattles (from engine area) when I let off gas while in traffic or in a drive-through. It almost feels as though it's going to stall. Drive thru, parking lot, traffic are all examples. "Stop and go" push the gas to move forward and quickly let off gas. I let off the gas there is a large rattle coming from my engine. Not sure if it's miss-firing or if it's an exhaust leak or a timing chain issue. I'm having trouble trying to figure this out because it does not happen all the time and have been unable to re-create when I go to the mechanic.
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I'm a new owner to my first 4x4 vehicle. My vehicle is a 2007 f150 xlt. Today while I was driving into work I had my vehicle in 4wd high. As I was going down hill I let off the gas and started braking. When all of a sudden my 4wd drive switched into neutral. I am wondering what could cause this to happen and whether it's an issue or not? It is snowing which was my purpose for being in 4wd.
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My truck is a 2004 (new body style) 4.6L XL Supercab 4x4, trans code A, which I believe is the 4R75W transmission. I bought the truck used last year with 110k miles on it and it still only has 115k now. I think the problem with the trans was there when I bought it (it's highly intermittent) which may be the reason why the PO traded it in, because the truck is in excellent shape and has clearly been well cared for in all other regards.
The problem only occurs after having let up off the accelerator pedal for a while and coasting, then getting back on the gas without coming to a complete stop, like one might do coasting downhill or coming up to a light that turns green before you come to a stop. When that happens it feels like the transmission has shifted into neutral and the engine revs up freely for a second or two and then suddenly engages and clunks / slams into drive. This doesn't happen every time that I attempt to reproduce it, and it went for the entire summer without doing it once. But, now that winter is coming on in New England I find that it is doing it again once in a while. The problem seems to happen whether overdrive is engaged or not.
I've checked fluid level and condition and both are fine. Nice bright red color and no burnt smell. The transmission works well in all other ways except for this one issue. With the exception of this problem it seems to be engaging, driving and shifting perfectly, with no slipping, even when giving it a good romp, with or without 4x4 engaged, or even carrying a heavy load, causes no problems.
To me, this seems like a control problem of some kind, doesn't it? If it was mechanical or hydraulic I wouldn't expect it to only occur after coasting for a while.
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Ok, So, Im 40 miles from home stuck in ice and snow in a hotel.. (my wife works close by- thought it would be safer than driving in the 10 inches of snow we got 3 days in a row) so, I go to pick her up tonight and I engage 4hi.. I hear the click and the light comes on.. but no clunk of the hubs locking.. I drop it in 4 lo.. it shifts in low.. but the hubs are not locking..
I hear a ticking sound as I drive and when I put it in 2wd it goes away. I turn off the truck, turn the wheel hard both ways .. get out and I can physically turn the drive shaft and I hear the ticking in the hubs. If I read correctly when the truck is off these should be locked?
is it possible the vacuum is not releasing? I also get the groaning when I start up of the air diverter.. that im told is operated by vacuum.. so I am guessing I have a vacuum 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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This morning while listening to cartalk I am stopped at a stop sign. I press on the gas to start off from stop - hear a loud bang as if I hit something. All of a sudden my engine is revving hard, whining noise but no power to drive. Luckily I had enough gradient to put the car in neutral and float it to a stop by the curb. Car does not move on Drive or Reverse but engine runs fine and revs up but no power to both axle. Where the issue is? The car is 82K miles and has driven great. where is the issue??? Axle break down/ CV joint break down/transfer case break down/ What is it?
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