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Engine misfire?

Tiny
KC101010
  • MEMBER
  • 2011 HONDA ACCORD
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 85,000 MILES
The idle was acting up two weeks ago. While sitting at a parking lot for thirty five minutes I felt a shake and saw the RPM needle plunge down to 400 and then back to 800. It only happened once that I noticed. A few days ago that when I am accelerating around 25 to 30 mph the car jerks for a solid two seconds. I press the gas pedal a little harder and it goes away but a few minutes later it does it again and on occasion it has done it for up to four seconds. A few days ago it felt like it was going to shut off on me when driving at about 25 mph and when I came to a red light it felt as if I was going to stall. I had the plugs changed and still same problem. A couple of people I know who work on cars suggested a weak fuel pump. I replaced that and still same problem. I then cleaned throttle body plate and cleaned the MAF and still same issue. I had taken this perfectly fine vehicle a few months back to get tires from one of these national chain car care centers and my car started having issues it did not have before.
I know it had a transmission seal replaced because of a leak and the transmission fluid has a pinkish light brown color to it instead of pink or red. Could it be the transmission that is causing this?
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Wednesday, December 12th, 2018 AT 4:17 PM

40 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

The first thing that comes to mind is a crank sensor. It can cause momentary cutout and still not code.

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

This guide can help as well

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

It is located by the oil filter and a simple repair. It had nothing to do with your tire replacement. Check out the diagrams (Below). Please let us know what happens.
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Wednesday, December 12th, 2018 AT 4:26 PM
Tiny
KC101010
  • MEMBER
  • 3 POSTS
Thanks for the answer Roy. I appreciate the quick response and I will give it a shot.
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Wednesday, December 12th, 2018 AT 6:21 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Sounds good.

Keep us updated.

Always glad to help.

Roy
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Wednesday, December 12th, 2018 AT 6:31 PM
Tiny
KC101010
  • MEMBER
  • 3 POSTS
So I replaced the crank sensor and still the same issue. I am at a loss. Someone mentioned that maybe the MAF sensor or a vacuum leak is causing this. But I am baffled as to why I am not getting any codes.
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Sunday, December 16th, 2018 AT 3:25 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
The next step I would do is a compression test to be sure all the cylinders are good.

https://www.2carpros.com/articles/how-to-test-engine-compression

Roy

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Monday, December 17th, 2018 AT 8:41 PM
Tiny
HUBERT LANCANSTER
  • MEMBER
  • 1 POST
  • 2009 HONDA ACCORD
  • 100,000 MILES
The vehicle took too long to start and finally did start. The engine trouble light came on and also the VGA light. On restarting the engine the engine light stayed on and the VGA light went out. After going about 5 miles and restarting the engine again the vehicle idles okay, but when you accelerate it starts misfiring and loses power. A month ago Honda service had relearned the CKP sensor, but it seem not to help. I took it to a mechanic and he relearned it again, but I don't think it will last.
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Saturday, September 19th, 2020 AT 2:48 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
Hello,

It sounds like the car is going into limp mode due to a dirty throttle bore. this guide can help us fix it.:

https://www.2carpros.com/articles/reduced-power-limp-mode

We should run the codes as well.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run down these guides and report back.
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Saturday, September 19th, 2020 AT 2:48 PM (Merged)
Tiny
RX7M
  • MEMBER
  • 8 POSTS
  • 2006 HONDA ACCORD
  • FWD
  • MANUAL
  • 50,000 MILES
Posted ;that post, unfortunatly, misfiring and random misfiring was back with car cabin smelling of fumes.
After 4 mechanic, whom, took the easy way out, got car back with same problem. Mind u readers I was burning oil with misfiring, car idleing funny, exhuast sputtering at the end pipe. All mechanic suggested it was normal.1 daring mechanic open the head; replace vavles, put head back. Misfiring went away, but got code072and075 bank 1 and 2 running rich. Took head out to redo. Clean fuel and intake. I was overjoy to say. Got car back with no check engine lite, no funny idle. No fuuny exhuast or gasolin fumes or exhuast sputter sound. Spend a bit of money, had already spend much trying to fix it from advise on most car furom. Car has 50,000. Wanted to save it at all cost. If a mechnic had suggested. Bad valves and seals, I wouldn't have spend money on plugs, injector etc. Any I hope this help some one. Mine car had 2 bad valves all mechanic said my compression was up to par, accept 1, who perform a dry and a wet run, suggested it was mechanical problem in 2 cylindas that were below par. Good luck
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Saturday, September 19th, 2020 AT 2:48 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Thank you for the input. It definitely is going to be helpful for others.

Have a nice day.
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Saturday, September 19th, 2020 AT 2:48 PM (Merged)
Tiny
RX7M
  • MEMBER
  • 8 POSTS
Rx7 06 honda 6seed manual car still running great. Code corection, 1072and 1075. Instead of 072/075 in my previouse forum.A point to mechanic regular compression check do not tell the full detail in engine. Until booktext is aplied with the additions and substractions.
Also while my car idled rough when test driving, it sprinted with no problem. Given the mechanics to think the was nothing wrong in the engine. All reading to computer checked out find. Accept the misfire and random misfire/, all was having a hard tme diagnosting. Also when client
complian about fumes in cabin most mechanic think its imposible, I experience. It went away when repairs was finally made to the engine. Hint machanic or a friend test driving the a day wuold come to conclusion thers no fumes or smell. Have to drive car for few daysto note that problem. Car owner has inhailed so much fumes, sticking thier head inside the car alone, would notice the smell of fumes. Cobination of exhuast and gasoline smell. Thanks to all mechanic on site goodluck.
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Saturday, September 19th, 2020 AT 2:48 PM (Merged)
Tiny
RX7M
  • MEMBER
  • 8 POSTS
Correction, /friend test riding the car for a day, have to dive the car for a few days
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Saturday, September 19th, 2020 AT 2:48 PM (Merged)
Tiny
WRINGO
  • MEMBER
  • 1 POST
  • 2004 HONDA ACCORD
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 97,000 MILES
Engine seems to run fine at start-up but within 5 min jerks over 2500 rpm and if more throttle is applied engine goes to idle. Put a new throttle positioner on the car and disconnected the battery while doing so. Still does the same thing. Engine light comes on right before this starts. Have also had one other problem recently, shifter safety lock comes on sometimes and locks the shifter either on start up or even when the shifter is put into park with the motor runing.
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Saturday, September 19th, 2020 AT 2:48 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi wringo,

You need to scan to find out what is wrong as the Check Engine Light was showing.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Check the Brake lights, if they are not working the gear shift would be stuck in Park unless you manually release it with the key slot.
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Saturday, September 19th, 2020 AT 2:48 PM (Merged)
Tiny
MUHAHA
  • MEMBER
  • 1 POST
  • 2004 HONDA ACCORD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 58,000 MILES
So a few days ago my car whenever the RPM's go above 2,500 it starts jerking like there is a governor on the car. If I am driving and the RPM's are below 2,500, I do not notice any problem shift gears or anything. I also put the car in park and revved the engine and soon as it goes above 2,500, the RPM's start going up and down. When shifting gears, the transmission is not slipping.

Thanks for your help in advance!
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Saturday, September 19th, 2020 AT 2:49 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi muhaha,

This sounds like a typical ignition system breakdown due to worn out spark plugs. Here are two guides to help us get the problem fixed:

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

and

https://www.2carpros.com/articles/how-to-tune-up-a-car-engine

Please run down these guides and report back.

Cheers
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+1
Saturday, September 19th, 2020 AT 2:49 PM (Merged)
Tiny
DENTALFITCHIC
  • MEMBER
  • 0 POST
Yes, I had this problem after the tune up it run perfect! I love this site.
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Saturday, September 19th, 2020 AT 2:49 PM (Merged)
Tiny
DLDAMORE17
  • MEMBER
  • 1 POST
  • 2004 HONDA ACCORD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 157,000 MILES
04'honda accord engine light is on, My engine will miss/hesitate when trying to accelerate at any speed above 40 mph. When going at speeds below that the car accelerates fine. PLEASE HELP!
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Saturday, September 19th, 2020 AT 2:51 PM (Merged)
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Have codes read at most autoparts stores for free, post codes in this thread.
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Saturday, September 19th, 2020 AT 2:51 PM (Merged)
Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
I agree with mmprince 4000, The thing to remember is if they clear the code it will reappear after forty miles of driving. That is when the computer resets and the engine light will come back on if the problem is not corrected.
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Saturday, September 19th, 2020 AT 2:52 PM (Merged)
Tiny
ANGELADONNMYERSAXMANN
  • MEMBER
  • 1 POST
  • 2003 HONDA ACCORD
  • 20,000 MILES
Random misfire in several cylinders 2, 4, 6, 5 have did coil pack plugs and erg now what to try
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Monday, January 11th, 2021 AT 5:41 PM (Merged)

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