Ford F-150 (2009-2014) :: Hesitation With Moderate Acceleration And Felt Mostly In 3rd Gear
Jul 13, 2012
I have an 09 F150 4x4 with 116,000 miles on the clock. I am having an issue with moderate acceleration and felt mostly in 3rd gear. I changed the spark plugs at 106,000 miles with OEM replacements. I have had this issue since about 80,000 miles but intermittently. It seems its starting to get worse as time goes by. The problem is both cold or warm and doesn't happen all the time but now about 80%. Light acceleration is good and full acceleration is great with no issues.
Feels more like running out of fuel but not to the point of stumbling. Possible misfire that is not being detected. No check engine light lit. Tranny shifts perfect. Idles extremely smooth. I was thinking a coil problem but with no engine light, I don't want to try to guess which one. So far, this truck has been awesome and has needed nothing but tires and routine maintenance. I pull trailers consistently and this beast is not abused nor babied.
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Was back east this past weekend seeing some family. Went out with a friend of mine, who has lent me his 2011 DSG GTI APR Stage 1(car currently has 24k miles) many times in the past and it has always performed flawlessly.
We were out the other night and the car hesitated under moderate acceleration between 3500-4500rpm in second and third gears. It almost felt as though it was bucking a little, really odd. The hesitation comes in threes or fours, then moves on in the revs.
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So today I had a scenario where I had to pull out from a blind corner onto busy street. By the time I pulled out I realized an SUV was coming down the street fairly quickly. My immediate instinct knowing I have 360hp on tap was to put the hammer down.
I basically planted my right foot to the floor and held it there. The truck was already rolling out of the lot and turning into the street at approximately 5-7 mph. This resulted in the truck shifting hard from rolling in 2nd gear, down to 1st. I never drive this way so what I'm asking next is if this is normal or not. As I held my foot to the floor through 2nd & 3rd gears the truck seemed to blip the throttle at 4k then up-shifted from 1st to 2nd gear.
I have a stock Ford Raptor exhaust on my truck with the resonator deleted and when the truck blipped the throttle just prior to the up shift, the exhaust "popped" like a race car with an open exhaust downshifting from speed into an apex. Yes it sounded cool, but it was obviously cutting fuel or throttle for some reason.
So here is the weird part, out of curiosity I tried a few different scenarios just to see if something was wrong with my truck. *Note if I just mash the gas from a dead stop there is no fuel cut going from 1st - 2nd gears at WOT. The fuel cut only happens when I'm leaving out and getting on the gas from a turn.
If I turn off the traction control or advance trac and stability program then there is no fuel cut or 4k rpm, the truck just runs out to the 5600 or so redline seamlessly. Im just wondering if the traction control or torque management is really that sensitive or aggressive? I mean it was 70 degrees out and the road dry, plus I was already at a speed 45-50?? mph where a loss of traction would not be an issue so what gives?
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I have a 2013 F150 3.5L Ecoboost XLT and have recently experienced a slight noise on acceleration in first gear. Sounds like a light rattle or ping. The dealer says it may be due to carbon buildup (I have noticed that the exhaust has a lot of soot on it). They are suggesting some additive to resolve this and she mentioned that the problem starts to show up at about 30,000kms. It does not affect power or cause misfire as described in posts.
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I purchased a 2011 F150 XLT 4X4 Super Crew in early January, since then I have had it into the dealership many times to correct an annoying shudder that can be seen (looking at the steering wheel) and felt as the truck accelerates. The shudder happens around 5 kph or 3 mph and then quickly disappears as you accelerate.
This is extremely annoying in stop and go traffic and is more readily felt if driving up hill. The dealer tried shims in the differential, Installed a new rear drive shaft, U joints and the last attempt was a complete rear end all to no avail.
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2010 f150 supercrew fx4
While driving down the highway yesterday at about 65mph I went to change lanes. As I was changing lanes I gave it a little gas. About half way through the lane change truck jerked like I had just been rear ended. I immediately checked my mirrors to see if I changed lanes in front of some body. No one was around. Truck still ran the same. Everything I'be read seems like similar thing happen to others at slower speed.
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5.0L ... I'm having one of those moments, you know after you do a mod to your truck and all of a sudden you notice something about your truck that could have been there all along but now you notice it as something new? Ok earlier in the week I had my exhaust resonator removed and replaced with a straight-pipe by a reputable exhaust shop. IMO the work looks to be pretty good for what it is.
That said I have always been nervous about getting exhaust work on any vehicle because it always seems like tampering with or removing the OEM plumbing for aftermarket or custom work tends to develop a vibration at some point.
So here is what I've noticed over the last couple days, when driving my truck it is extremely smooth, almost like glass. When I come to a complete stop say at a traffic light about 1-2 seconds after making the complete stop I feel this slight harmonic vibration in the steering wheel. For those of you that have an iphone it would be like having your phone bolted to the steering shaft somewhere and it on constant vibration if that makes sense.
Just to prove it only happens when I'm sitting still and idling in (D)rive I sat in my driveway with the truck idling, set the park brake and released the brake pedal holding the truck in place in (D)rive with the parking brake. No vibration, smooth as glass engine idle, as soon as I put my foot back on the brake pedal the vibration comes back. It's as if the extra draw of applying the brakes puts an extra load on some sort of accesory drive or componant under the hood and the result is this harmonic vibration.
Just so everyone knows, the vibration is very noticeable to me because I drive the truck daily, most people wouldn't pick it out if I didn't tell them first. Case in point if my wife drives the truck she can't feel it unless I tell her what to look for. There are going to be some of you that just say my truck doesn't do this and has had a smooth idle for XX,XXX miles I believe you but let me know now that I have explained exactly what to look for. Like I said for all I know it's done this since day one.
I have a feeling that the straight pipe might have been welded in slightly longer than the oem section that was removed thus putting more tention on the exhaust and engine if that makes sense, the end result being a slight vibration?? I know that manufactures put these little rubber bushings along the exhaust system on cars/ truck to absorb harmonic vibrations and for all I know my resonator might have been designed to balance out harmonic vibes in the exhaust system as well as quiet down the exhaust.
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I have an issue with my new 2011 F150 FX4 super crew with 5.0. I put a Rough Country level kit on the front struts which raised it 2.5 inches and looks great. The issue is that there is a low speed knock heard on the left side and felt through to the steering wheel. The truck has been aligned to factory specs. all bolts have been tightened, the strut has been taken off to check the top mounting bolts. Nothing appears to loose. Can't find anything. Am I forgetting something. Rough Country said it can't be the kit. It has bee used for sometime with no issues.
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Have 2014 XC-90 w/10k miles. Problem is sporadic (has happened approx 10-15 times over past year).
From standing stop (stop light, etc) -- press on accelerator and VERY LITTLE to no acceleration. Engine continues to run smoothly -- no indication of fuel starvation, no roughness --- just no acceleration. It does NOT appear to be transmission oriented because when it finally "kicks in" there is no feeling of transmission shifting or wild tach movement (to indicate that there was a changing of the gears, etc). I get things back to "normal" by pumping the accelerator (usually a reflex action because the are vehicles behind me wanting to "go"). VERY disconcerting issue.
Local Volvo dealer says "cannot find any error messages", etc. My only complaint with the car -- second XC-90 and 5th Volvo.
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Just purchased a 2014 Yukon XL it is has a bit of hesitation upon acceleration. Did not think much about initially but it is a bit bothersome. I have an 02 Suburban and never had that issue. I did also notice the same issue when test driving a 2014 Suburban.
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I bought a 2009 f150 5.4 with 150000 miles on it. I have a slight hesitation from idle so I want to clean the throttle body. I found several for the older f150"s with the horizontal throttle body but this 2009 has a vertical mounted one. I change the air filter and cleaned the MAF but didn't change anything. My wife's ford 500 had this problem and cleaning the throttle body completely cured it.
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A couple questions I have about my truck. I'm still new to the F150.
First, my truck has an Ecoboost and I have a slight stumble/hesitation when you start the truck cold. It clears up within 10 seconds and doesn't seem to affect drivability whatsoever.
Second, it seems that only my driver side mirror has the "dimming feature" to it. Is this normal?
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So, my 2004 with its constant tick is now "Missing", but only under moderate acceleration, between 1k and 2k rpms. i.e., : When in OD and wanting to gain a few MPH, but not drop down a gear. I have noticed it in OD and in 3rd. Feels like the engine stops for a split second, several times.
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Started a while back and comes and goes. Only commonality I have found is the truck needs to be warmed up for it to happen and usually after a few hours of driving. The downshift from 5th or 6th into fourth, at times, produces anywhere from a light to violent clunk, feels like a typical tranny slip. It will do it while in cruise and it will do it if I don't have the cruise on. Can't figure out if it is going to be a tune issue or hardware.
It does it only downshifting into 4th from 5th or 6th, no other downshifting is a problem and usually the 6th to 4th produces the worst results. At highway speeds that is usually a shift from around 2Krpm to just over 3K rpm (6th to 4th) if it is from 5th it is about 2500 to 3K. Start from a stop and go WOT and there are no issues.
Having it in Tow/Haul or not makes no difference as far as I can tell. IT can do it on one hill and the next time be just fine or do it 2-3 hills in a row. After this last trip it will do it at 9K feet or at 60 feet elevation, didn't make a difference there either.
Another issue that may be hurting the computer is the truck originally came with the 235 tires, it now has 285's and the rear is only 3.31. I plan on going with 265's and maybe still a gear change to 3.73's in the future. I usually only notice this on long trips, first was a 1500mile hauling an ATV, second was last week during a 2500 mile empty. Although I have had it do it a few times locally. I figure those bigger tires can't be good especially with that high of a rear for the management system.
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2007 explorer makes a grinding sound I feel in the gas pedal upon acceleration. Also hesitates when acceleration on highway.....
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I have recently purchased a 2011 F150 Ext cab with 3.5L ecoboost with 69k miles. I have no experience with these engines prior to now. I've always wanted a full size truck and after driving my 98 S10 for 17 years, I decided it was time for a new truck. I hope I made the right choice in going for the 3.5 instead of 5.0.
On to my question. I've noticed that the truck hesitates from a dead stop or anytime the RPM's are under 1k. It feels like its missing or running lean/rich during the spin up of RPM's. When I drive it hard, it does seem to subside for a little, and I've heard people say that they run better when run hard. I can attest to that, but is this hesitation normal for an almost 70k mile engine? I am getting 15ish MPG on almost all city driving since I have bought it, but I do expect that to change (job hunting and current commute is less than 2 miles each way).
The only time I get to open it up is when I go run errands out of the immediate local area or visiting friends and family. On one of those trips, before I noticed the hesitation, I attempted to accelerate from 60 to pass on the expressway and it bucked and resisted like a horse. It finally took off up to 80 and completed that journey with no issue but the check engine light came on for a bit. The check engine light went off when I shut it down and hasn't come back on since.
New ride: 2011 3.5L Ecoboost....
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I'm relatively new to the 6.7 engine , I have a 2014 F-350 SRW with aprox 51,000 miles on it. Normal driving I see about 8 to 10 psi of boost even under moderate acceleration although at times it will go to about 18 psi at WOT and it does this with heavy loads. At moderate acceleration the boost will jump to 10 psi quickly but immediately stop there and sometimes as the RPM"s increase boost pressure decreases. Only issues I have had with the truck was a clogged EGR cooler.
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Every once in a while, I'll feel a vibration in the gas pedal. It happens under acceleration, and typically if I'm pushing down and it has not downshifted yet. Then once it downshifts the vibration is less noticeable.
I know there have been issues with the Electronic Throttle Control on these drive-by-wire trucks, particularly on the Super Duty trucks.
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I have a 2010 Ford F150 Lariat with 111000 miles on it and now I have a ticking noise under acceleration only and after reading some stuff on here that makes me believe that it is the cam phasers. The question I have is what kind of damage can this cause? Is this something that I can continue running with and does the noise get worse and if so how much worse?
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2014 ecoboost Supercrew 4x4 20k miles
It happened at the most inopportune time. I was in the left lane of a two lane road passing a slow truck on a somewhat busy road and it happened. Shudder, loss of power, check engine light on, limp mode. I was next to the cab of the truck when it happened and had to slow and get behind him to pull over and shut it down.
Potentially a dangerous situation.
I rarely step on it, but when I do, I expect it to work.
I baby this truck, almost 18 mpg lifetime average for the 20k miles on this truck.
I took it directly to the dealer to get checked out.
Codes P0305 and P0306.
Checked for carbon tracking on plugs, none found.
Performed a power balance and coil stress test, no problem found.
Removed CAC deflector for inspection, no issues found.
Updated PCM to latest calibration.
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I have about 22,000 miles on the odometer. I bought it as a CPO with 2200 miles on it. Truck is all stock.
I have heard this noise only once before. I will accelerate up to about 45mph, back off to about 30-35 possibly less, then accelerate again. When I do, it downshifts and I hear a lout noise that sounds like a yelp a dog would make if startled.
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