Throttle Pedal Assembly causing RPM increase after pressing in clutch

Asked by Richard May 31, 2018 at 12:40 PM about the 2018 Ford Focus ST

Question type: Maintenance & Repair

I have been having a problem with my 2018 Focus St. This problem has been
experienced by many others with 2017 and 2018 Focus ST's and we are all
currently writing in forums and on FB groups to try and figure out what is going
on with our vehicles. It usually happens when the car is hot. For me its when I
get to my car after work and it has been sitting in the sun. When driving and
shifting gears, as soon as I push the clutch pedal in and take my foot off the
gas, suddenly the RPMs will increase anywhere from 500 to 2000 RPMs, hold
it for a minute at the apex and then drop back down. When driving faster, say
from 1st to 2nd, if I press the clutch pedal in at 3000 RPM, it will suddenly rise
to about 4500 and then I have to let the clutch back out to engage second
gear, this puts stress on the clutch as it re-engages and RPMs drop to about
2200ish as second gear engages.

If I pull up with my foot on the throttle pedal assembly, it seems to temporarily
fix the problem, but it will start again soon after. If I blow the AC down into the
foot well, eventually it seems to cool down the temperature down there and the
issue stops. Also early in the morning when it is cool out, there is essentially no
problem.

To me this seems like there is something expanding in the throttle pedal
assembly when its warmer and getting stuck. When this issue is happening
and I'm driving, if I press the throttle and accelerate, when I take my foot off
the pedal, the car continues to pull slightly for a few seconds before easing off.
Again, this reinforces the fact that I think something is sticking somewhere in
the throttle pedal assembly. There are many of us having this problem and no
one seems to have an answer. Many of the dealerships are not warrantying the
fix and most can't even come to the conclusion that this is in fact what they
think it is.

One person on the message boards did have the throttle assembly replaced
and reported that he has not had the issue since, but I haven't heard an
update since his first one 2 days after the fix.

It seems to be so frequent that we are suspecting that it may be a problem that
needs a recall to fix properly. Please help us! It is absolutely miserable to drive
this car with this problem going on. If it continues I am sure it will reduce the
life of my clutch.

67 Answers

40

I’m having the same issue on my 17. My tuner had turned RPM rise completely off and I have checked every source for a possible vacuum leak that could cause the same issue. From datalogs, when it occurs, you can see that the accelerator position sensor still reads a small value when I lift my foot completely off the gas and depress the clutch. I may just order a new pedal/sensor from tascaparts to avoid the headache of a dealer trip. I’ll keep you updated, going to pull mine out today and see if a good cleaning will fix the issue first.

4 people found this helpful.
50

Did this get resolved? I'm having the same issue and Ford couldn't find a problem in the 2 days I could leave it with them.

1 people found this helpful.
20

just put a throttle body on mine new bosh revs a bit lower but still sticking at 1 half to 2 half, help me .mine is a ford focus titanium 12 plate, took it to the garage and all they want to do is take money of me and its easy to change it yourself .

2 people found this helpful.
150

This exact thing is happening with my 2017 Focus RS...anyone have any more updates on this?

3 people found this helpful.
50

MBoules, no there has been no solution yet. More and more 17s/18s are posting about this on forum and FB pages though.

1 people found this helpful.
50

Throttle pedal assembly...needs to be replaced. Definitely needs to be a Ford Recall item

5 people found this helpful.
150

This is crazy. can anyone share the links where these other conversations are happening?

1 people found this helpful.
50

Can't link most of these as they are in closed FB groups.

1 people found this helpful.
10

@richard or @sean - either of you have an update on your situation?

1 people found this helpful.
150

I'm happy to say that the issue has finally been fixed on my car. Not sure if anyone is still having this problem, but it was definitely the pedal assembly. It's like driving a completely different car since being replaced. Ford definitely has a problem with that assembly. Mine didn't even make it 10k miles before becoming defective. Hopefully they will come out with a redesigned pedal soon!

8 people found this helpful.
150

@GuruDRC1R - Yes my RS is fixed. And as an FYI to everyone, the RS and ST use the same pedal assembly. EV6Z 9F836 E PEDAL

3 people found this helpful.
10

I had the exact same problem with my 2018 Focus ST. The dealer mechanic just replaced the pedal assembly and it fixed the problem immediately.

1 people found this helpful.
30

I had the same exact problem with the 2018 Focus ST. And attempted to take it in before to ford to see this issue, which evidently did not get resolved, because they couldnt find anything, which it didnt come back for a long time, 2-3 weeks. I went ahead and said forget it and was looking online for the price of this part, roughly 300 with tax, no thanks. I did not want to wait for a dealer to have my car for 2-3 days to figure out the problem and I wanted a fix asap so I went to https://www.fordpartsgiant.com and ordered for 120 bucks. Done and done. Perfect fit. Perfect match. Perfect Price. Problem resolved.

3 people found this helpful.
30

TJ: Tell your local dealership that you want Ford to pay for Ford's problem under warranty. Ford authorized my dealership to use all means possible to diagnose and repair. Albeit it was the blog community whos info I relayed to the my dealership to replace the RS/ ST E-pedal. Way to go anyways! Has anyone ever had a replaced accelerator pedal go bad?

3 people found this helpful.
35

My 2017 Focus ST is doing the same thing... It got so bad at one point that my RPM made it to 7K - pretty scary.

2 people found this helpful.
70

So far so good on my 2018 RS. I put on 3k miles on new pedal with no problems. Like someone said, I hope it makes to 10k miles before puking out. My 2016 RS is starting to have the same accelerator pedal symptoms. I'm getting it replaced under warranty. Let hope it lasts.

2 people found this helpful.
35

I'm hoping to get the same thing done, but; my car is tuned. I just hope there's no issue with that...

1 people found this helpful.
30

I'm having the same problem with my 2018 Ford Focus ST with about 6,200 miles. Started last week, 2 weeks after my first oil change, so I wasn't sure what was going on. I've been searching for a solution to this problem. Thank you @Richard for this post and for everybody that responded. My car is in the shop now for this issue combined with the fuel tank deformation stuck-open canister purge valve (CPV) issue. I was freaking out last Thursday after my RPMs were all over the place and had called a tow truck. I knew something was wrong. While I was waiting for the truck, I read the recall notice from Google news on my phone for the CPV. Now finding this post I'll be able to get everything fixed at one time while the car is in the shop. They have my new canister purge valve and new fuel tank on order to hopefully come in Monday. I'm going to email my service advisor this post and ask for a new pedal assembly to be installed covered by warranty. Thanks again everybody.

2 people found this helpful.
50

Couldn't get a dealer to fix mine. I replaced the gas pedal myself, part number EV6Z 9F836 E All good now...Now we wait for it to happen all over again.

2 people found this helpful.
30

Thanks everyone for this discussion! My throttle pedal started staying down and reving the engine when I'd take my foot off the clutch in my 17 Focus RS. I could make it stop by putting my toe under the gas pedal and pulling upward. My local dealership replaced the throttle immediately under warranty when I told them what was happening.

3 people found this helpful.
10

Having the same issue. Brought it my local ford dealership and they said they couldn’t find anything wrong with it . For those that did it themselves, how difficult was it? Looking to try to do it myself but I’m not the mast handy

30

@ GuruB3792..Just received an email regarding your post. The dealer told me the same thing that they couldn't find anything wrong. I requested they replace the gas pedal anyway. Problem was fixed immediately. Cost me a total of $486.07 because I couldn't do it myself. Part $234.99, labor $195.00, misc $24.38, and tax $31.80. My dealership refused to replace under my warranty. My ST only had 6400 miles. I mailed Ford a request for reimbursement. Ford refused to reimburse me stating: The repair identified is not related to the recall. Very disappointed with my dealership and Ford for this. Finding out what warranty really means at Ford. It means they are demanding a recall before they do the work under warranty in my case. Good luck! The dealership had my car for about 10 days waiting for the part. Waiting for a recall to get reimbursed. Can't wait to get the dealership logo sticker off the back of my car.

1 people found this helpful.
70

Call the Ford consumer line and complain. Then it will be documented. Ford told my garage to use whatever means possible to repair my vehicle. Having a good relationship with your garage certainly helps.

2 people found this helpful.
50

I took the peddle assembly out. I used feeler blades to hold the tabs open and removed the assembly cover. Once inside I used spray silicone judiciously and reassembled, checking movement all the way. Hope this spares me the cost of replacement.

1 people found this helpful.
35

@MBoules, was this tough to do? I'd like to try to do mine once the weather warms up...

50

Yes it was easy. Just take your time prying the tabs up so as to not break them. The whole job took under 30 minutes.

1 people found this helpful.

Hi I got a 2'016 St having same problem it's not like eccelorae sticks it takes off on its own still it revs out if I shut off engine. I took Thorpe body off an cleaned but I noticed that the a facial throttle is computerized meaning no cables it must be some form of magnet point is the throttle body and the throttle body sensor wen u pees on gas peddle the sensor give the gas for ur car so wen and if this goes bad your car will review to wat ever it wants even if u touch gas or floor it . So I'll let u know if I'm not back on here replacing the throttle body 200 buck give take with the sensor all one then this worked

20

Having the same issue with my 2017 ST with 12k miles. Really makes it hard to drive the car. The revs go up a couple hundred rpms when I put the clutch in with foot off the gas and then stay for 4-5 seconds. When revving in neutral it sometimes surges from when I let off another 500prm and will stay for more than 4-5 seconds. It's not doing this at all when the car is cold. Only warmed up. Of course on my way to Ford acting totally normal!!! It's really becoming a safety issue. Left it with Ford over night. They drove for 5 miles hot/cold and they told me could not reproduce shifting normal.

50

I only experience this issue the last 10 minutes of my 1 hour and 15 minute commute. It started about two months ago. Before I found this thread I thought it was the Evaporative canister purge valve issue that Ford has the recall out on. I was waiting to do it because my 2017 ST is fully bolted Stage three running custome E30 blend tune. On Focus ST forum people are having issues with reinstalling their tunes after the recall ECU flash update that the dealer does with or without parts. Cobb is supposed to be working on a fix for this. Sense I disassembled, lubricated and reassembled the throttle assembly I have had no problems.

70

When this happens again, hopefully you can drive by a Ford dealership and request a mechanic to look at it on the spot. Don't forget to put a call in to Ford consumer line and complain. They will make a case for your car. Some ST and RS accelerator pedals should have a recall item for sure! Put the heat on in foot area to accelerate this condition. Heat seems to affect the pedal from info I've gathered. The pedal new assy. doesn't require a pcm or ecu change, that I know of.

Just to add to the knowledge here,I have an 18 ST and noticed the revving issue right after my gas tank recall ECU work at 24k miles. I thought it might have been related to that, but I'm glad ya'll cleared it up; must have just been a coincidence? But I'll see if hopefully any local ford dealers will do it under warranty as well.

50

Jesus, the flash is not available yet for the ST’s for the purge valve recall. They mistakenly sent all Focus owners the recall letter but they are still working on a flash for the ST’s. Not sure why they did for you, but I doubt it’s fixed

50

Took mine in today for this rev hang/advance. I had the problem on my 17 last winter. Dealership last year said no problems. It went away as the weather got warmer. Well it reared it’s ugly head this winter again. Showed the service guy this thread....calls me a few hours later and says there’s no problem. I’m getting very frustrated with ford mechanics.

Mee125. Do you have a source for the recall not being ready for ST quite yet? I did mine after reading others had the work already completed as early as December. I googled it again and didn't find any sources that it was not yet completed. If I'm going to take it back to the dealership, I'd like a reliable source... also it's starting to warm up again here in AZ, and I've also noticed it's not as bad. And like the RS owner from earlier, when it does happen, I find that nudging the pedal upwards also brings the revs back down.

50

Jesus, the rev hang/advance is in the pedal assembly. That is totally separate from the purge valve recall. I wanted to have them look at my pedal and do the purge valve recall at the same time. The dealership told me no flash yet. I thought that was odd since I had gotten the letter in December. I proceeded to call about 5 more dealerships in my area....5 out of 6 dealers said no fix yet. They are only working on regular NA focus, not the turbo ST as of now. They said we should get a new letter in the mail. I’d have to guess they gave you a visual inspection of the tank which is part of the recall but there will also be a computer flash

1 people found this helpful.
10

Been having this issue for a while and been having a back and forth battle with the dealership. I've shown them the forums that I'm a part of and showing them how numerous ST owners having the same issue. I was told that the recall should've fixed it, but that didn't fix it. Brought it back and they changed out the throttle body, but that didn't fix it. Bringing it again next tuesday to have it diagnosed again. Really frustrating but I'm hoping that this next appointment will fix it.

1 people found this helpful.
40

My 2017 st is in the shop for 4th time in 2 months The changed throttle body and a few days later I was getting off highway when my rpm jumped to 6500. I was messing with peddle to try to get it to stop and hit a pothole. I blew a tire and almost stuffed my car into a guardrail. I sent my paperwork from both dealerships that said it was my throttle body to a lawyer. I also contacted DOT I am asking anyone that is having issue to go to DOT website and fill out form. I sent mine in on Monday 3/4/2019

1 people found this helpful.

I experienced this issue in my 2017 RS. It typically develops when the heater is on. But unfortunately when I took it in the morning to the dealership, the issue did not show up. I mentioned the same to the dealer and told them they might not see the issue show up as it needs a bit of driving. The service advisor at the Ford dealership said they have seen this issue on some other cars and they will replace the pedal assembly anyway. Assembly was replaced under Warranty. The car feels and drives great after the replacement. I wished I had taken it to the dealer a bit earlier.

50

I was never able to get forward to change out the pedal assembly. They claimed that since there’s no recall on it, they couldn’t do anything. Which we all know is bs. I did however inject a little white lithium grease into the pinch point of the accelerator and bam...fixed.

4 people found this helpful.

That's good to know. If it is due to lack of lubrication, I wonder if the issue will resurface even on the newer pedal assembly after some usage?

50

You never really know, could just be “x %” come out faulty. Maybe I jammed the pedal a little too hard once? Maybe salt gets in there? As im in Michigan and our cars see a ton of salt in the winter. Or could be dirt. No idea

40

Update after 5 trips to 3 dealers they replaced my pedal assembly. Seems to be working now. I am going to contact consumer protection agency. Ford needs to recall this before someone crashes there car

3 people found this helpful.
55

@mee1205 thanks for your suggestion, I sprayed some white lithium grease up there and voila immediately I could feel the difference in the pedal resistance. Now I have to re-learn how to drive it like this, my rev matching skills have reset to zero. https://youtu.be/vKqRFXie6M4

2 people found this helpful.
10

I have a 2017 Ford Focus St3 purchased brand new. I have had this same problem, over revving between shifting gears, almost since the time I purchased the car. I documented what the car was doing on video and submitted that with a narrative to the Ford dealership that I purchased my ST from. They said that it had to be s computer problem. That was like 18 months ago. Anyways, during one of these episodes of over revving, I got so concerned that instinct kicked in, totally forgetting that the accelerator was electronic, not by wire, and put my foot below the accelerator pedal and lifted up gently. Doing this caused the rpms to immediately start to drop. So I believe that, in part, the problem lies in the accelerator system. I intend to print out this entire thread and take it to my Ford dealership and say “here, don’t tell me again that you haven’t heard of [this] happening”. Good luck ST buds. I will post an update when warranted. JPA South Hutchinson Island, Fort Pierce, Florida.

1 people found this helpful.

Just wanted to give an update. About a couple weeks after my last post (2 months ago), my throttle started behaving normally again. As someone stated previously, warmer weather may be the reason it's better, as it has since warmed up here in Phoenix.

I was having the same issue with my 2017 Ford Focus ST. I took it in 3 weeks ago for the dealer to look at and to get an oil change. Of course the three times they drove it nothing happened, but while they did the oil change they also did a recall fix 18S32, fuel tank purge valve. I have not had an issue since. Not sure if this helps anyone, but thought I would share. I did not even know of this recall.

50

Yes they did the purge valve recall on mine after I was having some misfire cyl 2 issues about 1 1/2-2 months ago. They did tell me that the ecu flash they gave me was the “where they are now” file. It’s still being fine tuned, I will need to return for one more flash when ford puts out the final revision. I did get the new valve, I didn’t need a new gas tank. It was not what was causing my misfires, and ford was unable to find the problem even with 2 cels a month apart. They boroscoped, pressure tested, whole nine yards....but wouldn’t put in new plugs because “they looked fine” Anyways, after the second visit, it stopped misfiring and the paperwork shows them doing nothing but testing so I’m clueless what they did. They also refused to replace this pedal, that’s when I tested the lithium grease and posted here. One guy told me I should go find a slightly used one on a lot and take it for a test drive and swap out the pedals

I have the same problem with my '18 EcoBoost 1.0. The first one let go at about 6600 miles, the replacement let go at about 15k. The first time, I took it to the dealer and they had it licked in about 3 days. This dealer is much more slow and a lot less adept at diagnosing the problem.

20

Getting very frustrated with this issue lately. It started off like everyone else with just some rev hang..tiny bit of surging. Now I've had 4 cases where the car is revving on its own up to 5-6k. So like others have suggested I pull up on the pedal and the issue goes away. Went to Ford about 8 months ago and left the car. They could not reproduce. Guys says if it happens again stop by and show us. So last week I'm on my lunch break driving down the highway...car revs on its own to 6k. I don't lift the pedal...it takes like 6 seconds for it to drop to idle. I turn around and go to the local Ford dealer. The service adviser drives my car with me in it and guess what....just a little rev hang. No surging at all. So of course he's like that normal the computer can do that...blah blah blah. So I have to reiterate that in some cases the car is literally revving to redline on its own which is not normal!!! I know taking apart the pedal and lubricating will most likely mitigate the issue. I'm just hesitant to do it because with just a little rev/hang surge I won't be able to get the pedal assembly replaced. Started to monitor in Torque app and think I now have enough to show the dealer. Will post my findings separately.

20

Loaded up Torque and dusted off my OBD2 BT reader. Added a custom PID for the accelerator pedal position PID: 22032B Equation: A/2. When the car is cool and just started up in the morning the pedal % almost instantly drops to 0% after revving. So I turn on the heat in the footwell to exacerbate the issue. As I'm driving for 10 minutes I see it start to hold some percent after letting off. Usually 7% then quickly down to 2%, then 0%. Barely noticeable. Another 10 minutes go by and it starts to get worse. Going from 12% to 7% to 2% and taking twice as long to drop. This is when I can see the little surging. By the end of the trip I'm now seeing it hold for about 10 seconds at 10-7%. Then very slowly drop. Then I put my foot under the pedal and lift up. Now it's instantly dropping to 0% when I let off on the gas. So it seems there is some thermal expansion in the pedal assembly that causes pedal to not return to 0%.

1 people found this helpful.

The main issue I feel with the Ford dealers is that they don't have a repository of known issues and solutions which they can refer to. When I took my RS for the same issue to the dealer near my home (Longmont Ford), they were aware of this already which made things smoother as they replaced the pedal assembly even though they could not reproduce the issue. I would say, you should try to contact other Ford dealers who might do this under warranty. Somebody who is already aware of this issue.

Let's compile a list of dealers that know about the issue: Longmont Ford (Longmont, CO) Any others?

55

@TurboG I used white lithium grease to fix the issue. Just spray it on the inside of the pedal assembly. Did it in the Spring issue has not come back since. https://youtu.be/vKqRFXie6M4

1 people found this helpful.
50

I’m eight months trouble free of peddle issues since opening up the peddle assembly and lubricating it. With winters approach I’ll be monitoring for any changes. The floor heat brought on the symptoms or at the least exaggerated it.

2 people found this helpful.
20

I finally took the pedal assembly apart and lubricated it this weekend. What a difference. Like a completely different car now. Can run heat full blast into the footwell. I did see what the potential issue is. There is a white ring on either side of the assembly which acts as a bearing. I think that piece might be binding. Saw some dust in there like it had been grinding. I used Sil-glyde (slicone) to lubricate all contact points.

Barbees Freeway Ford in Denver replaced my pedal under warranty after I showed them video of the severe rev hang.

I'm kinda glad I found out that many of us has the same exact issue. My 18 Focus St was in the shop 4 times with this issue and 2 other times for other major issues. Of course! the shop mechanics says everything checks out, until a day or two later with the same issue. I've tried getting ford to replace the throttle assembly but, they insisted to run tests on it instead. Anyways, today about 2 hrs ago I replaced the throttle assembly by myself which was a pain. Thanks Ford, Lol. Let's see how long the new one works. Part number was EV61-9F836-EA or 6PV 010 368-88 FV8QE

I had the same exact problem with my base-model 5-speed 2018 Focus. Dealership had to contact Ford in Detroit, which recommended replacing throttle pedal assembly, which the dealership did yesterday, and the problem appears to be resolved. Because the vehicle was under warranty, Ford also paid for an Enterprise rental car for the few days it took to get things made right.

20

@TurboG When you removed the pedal assembly and opened it up, was there any prior evidence of lubrication or was it dry? I'm having an issue with hanging revs just like many of you are. Mine is not as severe as others here, but it's still unnerving.

2 people found this helpful.
50

Yes it did appear to have some. Might have migrated down and away from the contact points.

1 people found this helpful.
20

@dragt6691 no sign of lubrication. Found a bit of fine dust under the white ring. I put a light coating on all parts that move/contact. Be careful with disassembly because the spring can go flying out.

1 people found this helpful.

Can confirm that the lube in the gas pedal assembly works. I was noticing that I was having trouble making smooth shifts for a few days, finally noticed rpms going up instead of down when lifting off gas. Sprayed just a little grease in assembly without a extender in the spray hole of the grease can, immediately fixed, rpms dropping like normal, and it revs noticably faster. Used grease that supposedly doesn't attract dust

5

As I was kind of late of knowing lubrication can fix the issue I just ordered a whole new pedal assembly and I can confirm no issue what so ever I can rev match with ease, without jerking the car and I live in Texas so far heat hasn't affected it so lubrication or a whole replacement will fix issue.

I have Focus titanium 2012, when the shifting on P or N it doesn’t accelerate more than 4 rpm, Moreover while driving if i let the accelerator and tried to accelerate again it doesn’t catch i need to press deeper which takes me to kick down. Any idea?

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