Accelerator problems

Top problems

Hesitation and Stumbling when throttle is applied

Ford F-150 2001  105693 miles
Cannot get truck to accelerate smoothly. When I apply throttle it hesitates and stumbles. I tested mass air flow harness and I get 6.1 volts at PCM wire.
Billy from United States 8 years ago  
BI
19 reports 
skeeter from United States 4 years ago
Needs to have throttle body cleaned
Comment

06 f150 throttle dieing issue

Ford F-150 2006  200002 miles
I drive around at least 2 hrs or more and 06 f150 you go to mash pedal down to pull out or to go up hill or to pass and truck just shuts off no power anything no lights nothing. I've replaced throttle body, fuel pump control mod. Up by spare tire. Ive replaced fuel filter. Thermostat, air filter , sill have this issue I really would like to drive my truck again. What else should I fix.
Nate from United States a year ago  
NA
3 reports 
D-MECH from United States 8 months ago
The pcm fuse in the interior fuse box on the driver side is blown. It happens when the fuel module goes out or has a bad ground. The wire harness for the pcm runs through the frame of the truck. I went through 3 pcm and probably 20 fuses trying to figure why I had this issue. There is an exposed wire running from the wire harness touching the frame. Good luck
Fordslostbolt from United States 7 months ago
Id start by changing complete fuse box. The whole box! I had almost identical issue almost 2 yrs ago, never could figure it out. Had a rare day off work and a bit of tinker brain wanting to tinker and had looked at everything imaginable. So i daid to hell with it i puuld the box and took it apart, completely! I seperated the circuit boards and foun a blown trace. Completeley seperated trace, finger,run or whatecer you wish to call it. It was completely seperated like a ¼in gap seperation. Snatched a box from junkyard hokked it up and been gettinit ever since
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No throttle response

Ford F-150 2009 F150 5.4 triton 19000 miles
No throttle response truck idles ruff
Melvin bick from United States 9 months ago  
ME
1 report 
Melvin bick from United States 9 months ago
Ford stopped making throttle actuator wat do I do now
Melvin bick from United States 9 months ago
How can I make my throttle actuator work agian
Comment

Wrench light came on. Down to limp mode. No power at throttle

Ford F-150 2007  1500000 miles
Driving normal speed and truck shuddered and wrench light came on dash. Had to idle it back to home. Miss fire now and then
bram from United States 4 years ago  
BR
1 report 

Throttle body will not enguage.

Ford F-150 2004 New body 5.4 4x4 super crew 183000 miles
Tps and throttle body test good. It's been in failsafe mode but now it won't allow the pcm to be reset. Eve put a new pcm in no change. Throws a ton of codes. Please help
Gus G from United States 5 years ago  
GU
2 reports 

Wont start was shaking before I changed throttle body tps

Ford F-150 2007 F150 5.4litre 14700 miles
Cranks but won't fire up changed everything. Throttle body throttle position sensor fuel pressure regulator
Jayw from Canada 6 years ago  
JA
1 report 

Powertrain malfunction/reduced power /electronic throttle contol (wren

Ford F-150 2012  135000 miles
Powertrain malfunction/reduced power /electronic throttle contol (wrench error) I can shift manually, no problem... RAPTOR 6.2L
Szark from United States 6 years ago  
SZ
6 reports 

Accelerator sticking at ful throttle

Ford F-150 2010 Stx 4.6 liter 61000 miles
The accelerator sticks at full throttle occasionally when fully depressed in passing situations. So far it goes back to normal when I tap the accelerator a second time. I removed the floor mat and found that was not the cause. It happens whether using cruise control or not.
Heyboy from United States 8 years ago  
HE
6 reports 

Wrench light

Ford F-150 2005 5.4 V8 triton xlt 114000 miles
This light came on then my truck started driving really rough. It would sort of "jerk" forward when I took my foot off the peddle. Drove it 2 hours home like this but since then it as been fine (only been 4 days). Wondering whats wrong, read online that its probably the throttle body.
killingham21 from United States 8 years ago  
KI
7 reports 
fo150 from Canada 8 years ago
Had same problem on 2001 f150 5.4. Take a look forcooked wired behind right side engine head just above o2 sensor. Check trans wire harness passes over the trans real close to exhaust check for trans oil in plug on trans. Pull codes from truck check for p1747 or similar short to ground. Wires might be cooked close to back of engine head or oil in plug o ring failure easy fix if harness might have to unplug trans wires and for slack good luck PS check engine bay fuse23 if blown
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It's very sluggish SolvedSolved

Ford F-150 2000  200000 miles
It rattles and it's very sluggish, as if something was missing. I changed the oil filter, spark plugs, cleaned the throttle body and it's still the same. The spark plugs I used are normal cheap ones, not platinum, and I calibrated them to 0.52, now it starts quickly, before it took a while. What can I do so it recovers acceleration and feels quick again?
indie from United States 9 years ago  
IN
1 reply 
Solved
Best answer (according to indie)
Raymond from United States 9 years ago
You have to check the gas pressure in the fuel rail, this is very delicate and with a few pounds everything is already off. I had that problem with a King Ranch that didn't go over 70, I changed the fuel pump and that was it.
Comment

Engine noise, F150 2004

Ford F-150 2004  150000 miles
The engine of my F150 5.4 Lariat sounds as if it was diesel, and on the passenger side the engine block makes a clanking sound. When I start it it doesn't make the noise, but as soon as it warms up it starts again. I checked the cranshaft's connecting rods and everything looks fine, the timing belt is new but the noise is still there, and it vibrates and loses accelaration when you throttle it.
Solly39 from United States 9 years ago  
SO
9 reports 
Susie from United States 9 years ago
I have the same problem with a 4WD, a mechanic saw it and said it only needed oil because this engines have almost 2 gallons, and also told me to change the oil pump.
Comment

Engine failure, carbureted F150

Ford F-150 1987  150000 miles
Hello! I just bought a carbureted V8 Ford F150, but the problem I have is that it lacks acceleration and the engine vibrates the same as if the injectors were clogged, but obviously it is carbureted. What I haven't checked is the timing with spark plugs and cables. It was already without use for over 3 years, and to add more information it doesn't produce smoke or makes weird noises, and when it is in parking and you throttle the engine it sounds as if something was uneven.
erick from United States 9 years ago  
ER
1 report 
Trixie from United States 9 years ago
The cables might damage for all the time it was parked; change the spark plugs too and check the distributor cap and the fuel filter
Comment

Ruff idle cuts out while driving loss of acceleration

Ford F-150 2005 Extended cab 4.6 stx 321500 miles
Check engine light was on so had auto zone run a scan on it. And at that time my truck would barley creep down the road. Well holy crap a ton of codes parked it till was able to slowly work on it. First changed all spark plugs helped a little then all 8 coil packs. New throttle body new EGR valve. Got a little better new fuel filter. Still ruff idle and cutting out on exceleration. Used smoke machine to check vacuum leaks didn't see any smoke. Checked vacuum line from brake booster that hooks to back of intake seems intact. Brake light stays on mostly sometimes flashes on and off. I'm at a loss help me figure this out. Plz
Stranded redneck gal from United States 8 months ago  
ST
2 reports 
Putitinyajaw77 from United States 6 months ago
Same problem,,,,help,,,I'm not gonna put a ton of money into this,,,any feedback would be greatly appreciated
Stranded redneck gal from United States 6 months ago
Well I guess nobody has a clue. I have changed the throttle body w new solenoid. EGR valve mass air flow sensor spark plugs coil packs I even made my own small key machine to check for vacuum leaks. Nothing I cleaned fuel filter and o two sensors. It has around 40 psi for fuel pressure. Help this country girl is tired of being broke down guess I'm gonna round up a old nag of a mule to ride to town and back. Saves gas... sorta
Backwoods G from United States 4 months ago
Check your duct work before the mass air flow sensor. Look for any hole or crack that could suck air. If it sucks air and begins to swirl inside of that duct work it will make it run rough. I’ve got a 99 F150 that had same issues i cleaned my mass air flow sensor, on underside of duct there was a rubber grommet that wires run through that had come loose, and a 1/4 inch gap where plastic met the fender. I secured and taped the grommet and taped up the gap and it instantly changed, runs like a top now.
https://youtu.be/CBM6wbP7SM0?si=RlWI9s…
This is where i got my info. It helped.
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No acceleration on gas pedal pushing; now it wont turn over and start

Ford F-150 2002 f150 147000 miles
Started just fine, back out of driveway, when I was pushing on the accelerator it acted like it didnt want to go. Finally died. Tried to get it to turn over again and it just tries to start but wont.
redhot from United States 8 years ago  
RE
7 reports 

Revolutions go up and down

Ford F-150 2008  190581 miles
It starts normally and after a while the revolutions go up and down until it stabilizes again. Like 20 minutes afterwards it starts doing the same until it shuts off. The throttle body was cleaned, the spark plugs and cables were changed, but it does the same until shutting off.
lainie73 from United States 8 years ago  
LA
4 reports 
erfol81 from United States a year ago
New plugs, wires, maf, intake temp sen, throttle body cleaned. Going crazy cause no one ever post the solution 94 ford taurass sho yamaha 3.0 v6 115k. Only when the heater or ac is on does it go up to 1500 back down to 800 constantly
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At 40 wrench comes on

Ford F-150 2004 F150 fx4 5.4 triton  220000 miles
Says power limit at throttle body
Jeremy from United States 5 days ago  
JE

Runs like poo one minute then ok the next

Ford F-150 2008 Fx4 v8 0 miles
Ok so ill be driving amd everything will be ok untill i slow down to a stop then it idles very low so low it stalls it doesn't do it all the time but mostly when i put it in reverse... the only reason i think it does it in reverse more is because it has the most torque so you dont have to use as much of the gas pedal to get it going which results in the low idle stalling... i replaced the crankshaft position sensor and cleaned the maf sensor... any info would help please and thank you
Crow from United States a year ago  
CR
1 report 

Loss of Power & Return to full power within minutes.

Ford F-150 2016 F150 4x4 Super Crew 3.5L Eco Boost 48000 miles
Driving along at normal speed (35) truck starts losing speed, step on the gas pedal a couple of times, nothing and still losing speed, throw the shifter into neutral and step on the gas pedal 2 or 3 times, throw it back into drive and everything is fine. Has happened to me 3 times and it has been once for each year and for three years. Dealership unable to find anything wrong and have no idea when it will happen again. Anyone Else????
Tom M. from United States 2 years ago  
TO

Low power/ stall/ no codes

Ford F-150 2008 XL/ 4.6 liter 297000 miles
While driving at various speeds, truck stalls occasionally. Rough idle and loss of power as well. I have replaced-fuel pump and control module, plugs and COPs, cam and crank sensor, sent pcm out for testing(good), and pcv valve and tube, cleaned throttle body, had cats looked at(good). Sometimes it happens daily, sometimes I can drive it for a month. I’m ready to scrap it! Advice please.
Dave from United States 2 years ago  
DA
12 reports 

4.2 v6 won't idle and hesitates at low rpms.

Ford F-150 1998 4.2l v6 2wd 277000 miles
98 f150 4.2 v6 5 speed. Will start and run as long as i stay on the throttle. If i let off the throttle while the truck is not moving or clutch is depressed, it dies. Sometimes when i go to accelerate, or at partial throttle, it and feels like it's being choked but when i get on the throttle or I'm completely off the throttle, it runs just fine. I replaced egr and cleaned the tube as best i could but wasn't able to clean the entire tube. After doing this the truck cranked and started to idle like it supposed to, but soon as i started driving, the problem persisted again. I cleaned the IAC and… Read complete
Jbear2086 from United States 2 years ago  
JB
2 reports 

Fails to run correctly

Ford F-150 2001 5.4 l supercar automatic 4x4  183 miles
Okay the truck doesn't want to run right it's like it's got no power you can feel it misfire your kick in and off I've got a new ECM I got a new injectors I got a new coil packs I got a new tank I got a new fuel pressure regulator I got a new fuel pump I've got new coil packs new spark plugs cam sensor crank sensor the differential pressure feedback sensor throttle body positioner sensor all this has all been put in here pretty much all new stuff even replace the wiring harness from the ECM out to the engine plug and play can't figure out why it doesn't want to run down the road very good it'll be fine unless it's an electrical issue
Harley guy one from United States 2 years ago  
HA
4 reports 

Cant drive but runs

Ford F-150 2010 5.4 145000 miles
My 2010 ford f150 had a throttle body sensor and a mass air sensor replaced n now the ecu reset but i go to drive it and soon i give it gas it falls on its face only drives as idel speed
ach86 from United States 2 years ago  
AC
6 reports 

2010 f150 help

Ford F-150 2010 5.4 145000 miles
Replaced throttle position sensor and reset the pcm truck no running soon i give it gas the check engine light and wrench light comes on truck runs bad
ach86 from United States 2 years ago  
AC
1 report 

“See Manual” Yellow Wrench

Ford F-150 2019 5.0 Super Crew  38000 miles
After filling my truck on gas I started it and got several warning lights. Parking brake failure and see manual. I turned the truck off and back on and all that happened was I got the yellow wrench on my dash. I’m going to take it to a auto shop to get codes ran tomorrow but it limits everything on my truck I’ve noticed. Can’t use cruise control and seems sluggish on the throttle.
Dave from United States 3 years ago  
DA
5 reports 

Have to floor truck to get going.

Ford F-150 1994 Standard Cab F-150 200000 miles
I have a 1994 of 150 and I have replaced the spark plugs wires throttle positioning sensor clean the throttle body remove both cats and put a piece a straight pipe in their place and also replaced the Ignition coil and clean the mass air flow sensor and still the truck doesn't react to me pressing the throttle until I have it to the floor and just recently I started backfiring.
Chad from United States 3 years ago  
CH
5 reports 

Ford 2012 f150 4×4 8cyl.

Ford F-150 2012 5.0 or 6.2 2040002 miles
My truck on cluster a green wrench appears and it loses its power when driving and it wont gain power when push on gas pedal also speedometer drops to zero and stays there. Sometime it will go off and go back to normal for a minute or 2 but right back to the same issue. I turn it off for a minute and it will real reset back to normal but five minutes later it does it again.
1
Pete Rodriguez from United States 3 years ago  
PE

Shuddering

Ford F-150 2005 F150 fx4 5.4  65000 miles
On the freeway uphill grade truck begins shuttering on acceleration I noted it at around 80 miles an hour power loss and had to back down off the throttle and reduce speed?
CrappyF150FX4 from United States 4 years ago  
CR
19 reports 

Wrench symbol on dash, initial solenoid chatter sound upon ignition

Ford F-150 2015 f150 Lariat v8 standard  51000 miles
Wrench symbol showing electronic throttle, power train issues and solenoid hammering sound when first turning key, then ignition. Sounds fast and rough when running.
BigJ from United States 4 years ago  
BI
1 report 

Wrench light came on the dash along with the traction control light.

Ford F-150 2009 F150 crew cab 5.4 2wd 72156 miles
Both lights go back and forth from wrench light to traction control light. Sputtering real bad. I can clear the codes and for one second I can feel it try to speed up. When I'm driving and let off thr accelerator, it sounds like it's choking out sputtering even worse. I have replaced just about every sensor and module except thr PCM. Im guessing it's that cause MPG went from 14.6 to 8.3 MPG. And it's throwing ALL 67 codes. Duckdown125@gmail.com
Boomhauer from United States 4 years ago  
BO
12 reports 

Misfire at 50mph+ lightly on gas pedal

Ford F-150 2004 5.4 200000 miles
New plugs, new coils. Im getting the notorious p300 code. If speed limit is 55 ill get to speed and then try to maintain 55mph lightly on the gas pedal... Ca -put ca- put put!! The misfire happens. Get on gas a bit more and it stops! Ive almost had it with this F.O.R.D 5.4 3v nightmare! Help!! Please
Mfr927 from United States 4 years ago  
MF
1 report 

Wrench light

Ford F-150 2016 f-150 2.7 109000 miles
When hard on throttle wrench light appers truck defuels this is the third engine
running from United States 4 years ago  
RU

Starts then stalls

Ford F-150 1998 ford F150 truck 8cyl 302 75000 miles
The truck will start but then stalls. If I hold down the accelerator it will start and keep running.
Larson1998 from United States 6 years ago  
LA

Vibration when speeding up

Ford F-150 2007 Supercrew 5.4L 175000 miles
When driving down the road and let off the gas then step back on throttle I get a pretty bad vibration I have checked all ujoints front and back had tires 're balanced I am at a loss as what to check next any idea
Biggdogg from United States 8 years ago  
BI
4 reports 

Engine failsafe mode turns on in the dashboard

Ford F-150 2006  250000 miles
I get in the dashboard a message saying engine failsafe mode, and the truck stops working as it should. When I try to put the autothrottle it doesn't respond and in the road if I want to overtake the overdrive doesn't kick in. I've taken it to several shops and to the dealership, but nobody found the failure. What can I do?
TYRZA from United States 9 years ago  
TY
1 report 
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