Questions tagged [misfire]
A condition where one or more engine cylinders experiences lack of combustion or mistimed combustion through detonation
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Spark plugs 3 and 5 wearing out faster
Two of my spark plugs in my 2013 Town and Country are wearing out much faster than the other four plugs. I have changed the coils for 3 and 5, I have also changed the cam shaft sensor. When those two ...
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Toyota Avalon Crank but won't start
Please, how can I fix this pending problem?
Recently, a client called me to fix his 2000 Toyota Avalon car that cranked but wasn't starting.
From the onset, the car experienced several mechanical, as ...
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P0302 persists after fuel treatment, new spark plugs, and swapped ignition coils
Problem: P0302
Vehicle: 2011 Mazda CX-7
Steps taken so far:
Replaced spark plugs
Swapped coil packs to see if the misfire would move to another cylinder
Added fuel treatment
The car had an extremely ...
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2017 Ford Escape
I have a 2017 Ford Escape that's been miss firing in cylinder # 3 at first I thought it was a bad coil so I replaced all of them including all of the spark plugs then it seemed ok for awhile then it ...
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Should misfire counts be zero?
'07 Cobalt LS, 2.2 L I-4
Car is not getting a misfire code. (p030x) However, the mode 6 data shows Non-zero "misfire counts" on all cylinders. The counts are single- or double-digits, and ...
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Cylinder 3 misfire after thermostat replacement valve
I have 2003 Ford Expedition that had the heater not working because my thermostat was broken open. I then got a code to replace the thermostat. I need to take a long drive so I took it to a shop to ...
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what causes a sienna to keep fouling spark plugs (misfire cylinder)
2005 Sienna, I occasionally get a p0304 (misfire cylinder 4) and engine runs rough. I found if I replace or clean the spark plug in cylinder 4, it goes away. For awhile. Then if I look in there, ...
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P0300 code (random misfire, all cylinders) but only after cold start
The past couple of times I've started my car for the first time in the day, I've had a problem with the engine running rough and sputtering, and being really down on power alongside a P0300 code ...
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Can I disable a cylinder on my 2009 Ford Ranger?
This is sort of a hypothetical at this point - I have a misfiring cylinder on my 2009 Ford Ranger 2.3L 4 cylinder engine. I'm trying to diagnose it, but am sort of preparing myself for the possibility ...
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Misfiring cylinder - does the ECM disable it?
I have a misfiring cylinder on my 2009 Ford Ranger 2.3L 4 cylinder engine.
I'll leave diagnosing the cause of the misfire to another thread, but I suspect it's related to retapping one of the spark ...
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Spark plugs black soot Virago 250 - came back after cleaning and adjustment
My Virago 250 was running very unevenly, losing power, surging etc. I took out the spark plugs and saw the electrodes were covered in soot. I thoroughly cleaned the plug tips with a wire brush, ran ...
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Engine chugging while idle, misfires when accelerating and loss of power
When I was driving my Peugeot 407 petrol I suddenly experienced a loss of power. Luckily I was close to home and was able to drive the few meters back. When I started the car again the engine was ...
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Misfire still happening after a lot of diagnostic - Mechanic stumped
I have a 2014 Town and Country that has been at garage for 5 weeks now.
It has a misfire issue on cylinder#2 at low idle (under 800RPM)
Mechanic is stumped by this issue, as he states mechanically ...
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Misfire on Cyl 2 & 3, but doesn't (exactly) match TSB
2009 Honda Accord
I found a TSB on a similar issue: TSB 09-050
My car exhibits the same symptoms others have had relating to the TSB, EXCEPT I only have the misfire codes: DTCsP0302 and P0303, but I'...
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1993 Cavalier 2.2 misfiring
My 1993 Cavalier 2.2 is misfiring on the #3 cylinder. A check of the spark plug showed a dry plug but still had spark. Ceramic was cracked so I replaced all four. Thinking the injector was bad, I ...
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Car runs great until shut off then runs bad until shut off again
2008 dodge Avenger 3.5L 140,000 miles. Car runs great for however long I’ll run it for, until I shut it off for 5 to 15 minutes after it’s up to temp, then if I start it, it runs like shit, Has a ...
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Misfiring after changing spark plugs
2016 WRX Stage 1+BIGSF intake
Dealing with a very annoying issue I CANNOT seem to figure out. Recently I've been tuning my car and figured changing the spark plugs would be a good idea. Ever since I ...
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Can a timing chain issue cause cylinder misfires on one bank, specifically the odd cylinders?
Make: Chevrolet
Model: Camaro
Year: 2010
3.6L v6 LT1
I am experiencing misfires on cylinders three and five. I have replaced spark plugs, swapped cylinder 2,4,6 ignition coils with cylinders 1,3,5 ...
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more consistent spark by holding plug boot away from terminal
I've been trying to diagnose some misfire issues. I've noticed that just about each cylinder doesn't have consistent spark when hooking a timing light up to the plug wire. I figured I'd troubleshoot ...
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Volvo engine parts
What is the name of these four elements called? If water gets to them, can that cause a misfire?
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Car runs "fine" only without camshaft position sensor
I bought a used Chevrolet Spark (aka matiz) with a 3 cylinder engine (F8CV engine) a month ago and I noticed some issues:
difficulty starting the engine
intermittent stalling when in neutral
very ...
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Engine misfire only when car is hot
I have honda civic 2011, now it works fine when cold startup and dont give much issues other then when I "accelerate a lot" and having done that for a while, the car starts misfiring.
Now ...
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Engine cylinder 5 misfire
On my Mitsubishi shogun sport van 2002 3.0L V6, There was a slight misfire on cylinder 5. We replaced spark plugs, all the HT leads (Ignition wires) and Ignition coils (all 3). That didn't solve our ...
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Subaru Forester - petrol coming out unlit in bursts out exhaust. Ideas on what could cause it?
I've got a Subaru Forester '02 2.5L that I push kind of hard off road on New Zealand beaches.
I had a near dead battery recently so bought a new one but on replacing it I must have wiped the ECU ...
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Can a stretched timing chain cause an issue in only one cylinder
I have a 2003 BMW 318i and had issue saying misfire on cylinder 4 only. Replaced spark plugs, coil packs, injectors tested and also compression tests done on cyclinders 1 and 4 and all came back fine. ...
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Can swapping ignition coils fix a cylinder four misfire?
My car was having power issues so I took it to the mechanic who said cylinder 4 was misfiring. He came back to me and said he swapped the ignition coils over and rescanned with no misfires and told me ...
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I have at least 3 misfiring cylinders on my 2012 Corolla
I have a code reader and it told me cylinders 1, 2, and 3 are misfiring. I also have and older battery and have been told it needs replaced because its low voltage. I have also been told I need a ...
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Will a cylinder misfire immediately fire the check engine light?
A family member is claiming their 4cyl engine on a 2000 Chevy S10 Extreme LS is misfiring. However we're not seeing a check engine light. Wouldn't that automatically trip the check engine light for ...
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Is my exhaust causing misfire or did misfire burn the exhaust?
I hope to not be too vague as I don't know a lot about cars.
I recently purchased a 1.2L Fiat Punto II 2005. It has trouble with a rough idle, a power drop off around 4krpm when accelerating and a ...
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Elusive cause to a lumpy idle
Having been around cars for a long time, this has me stumped.
2005 Renault Megane Estate with 1.4 K4J engine. Approx 125 000 km. Engine is restless at idle. Revs are unstable and feels like misfiring.
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Misfire at idle
I have a 97 Montero sport with 2.5k miles on the engine(it’s remanufactured). I’ve been chasing a p0305 for 2 years but can’t find the problem. I know I have a possible vacuum leak since the fuel ...
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Ford Ranger low RPM misfire?
2000 Ford Ranger 3.0L 2WD.
I'm having a tough time figuring out if it's trans shudder or a misfire but leaning towards misfire at this point. The rumbling really starts to happen during converter ...
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2012 nissan sentra
HelpI was driving down the highway and out of nowhere my car starting shaking real bad and acted as if it was struggling to move when i hit 60 and then struggled the whole time after that to get it ...
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What is typically involved to repair a internal combustion engine that has a cylinder misfiring?
I have a vehicle with a cylinder misfiring (according to my OBD-II code reader). I have decided to have a mechanic repair it, as I have never performed a similar motor vehicle repair.
Note that the ...
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What does radiator water in the cylinder well indicate?
The vehicle was running fine last week.
Stood for a few days and then when put under load (flooring it) the 2nd cylinder was found to be misfiring.
Popped off the engine cover and removed the 2nd ...
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1996 Toyota Tacoma Random Misfire
I have a 96 2.4l tacoma that has right under 200,000 miles on it. Most of the time it runs great but randomly it starts misfiring. Only when it's up to operating temp but besides that there's no rhyme ...
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Can a bad timing chain result in only a single cylinder misfiring?
The question title should be pretty self explanatory. I have a 2002 Nissan Maxima which began idling and accelerating really poorly (seemingly out of nowhere) a few days ago while I was driving home ...
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Yamaha FZS 600 Faser - Losing a cylinder when hot
I recently bought a 1999 Yamaha FZS 600 Fazer. It was absolutely fine on the test ride. Did a couple of other short rides (about 20 mins), also fine. Then today after about 15 mins I lose a cylinder. ...
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2006 Buick LaCrosse misfire - Replaced coil pack, new plugs, new wires, 2x junkyard ICM. Still no luck
I have a 2006 Buick LaCrosse 3.8L that is misfiring. There is a strong smell of gas when running.
I have had this issue before and it was solved by replacing the ignition control module. I also ...
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Is it possible to clear "permanent codes" on a Volkswagen Jetta?
I was inspecting a 2011 Volkswagen Jetta today and saw on my OBD reader that it had two misfire codes, if I remember correctly P0302 cylinder 2 misfire and P0300 multiple cylinder misfire. The check ...
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Testing whether engine stutter/hesitation is caused by catalytic converter
I have a 2005 Ford Expedition, from my dad, which stutters and hesitates to accelerate. Sometimes it barely has a problem and sometimes it's bad. It has new spark plugs and spark plug coils which the ...
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Pros and cons of driving a vehicle with a misfiring cylinder
Check engine light came on for a Toyota Prius that is only being driven about once a month since COVID-19 pandemic began.
OBD-II scanner shows P0302, which indicates the problem is a misfiring ...
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Feelin' a misfire but ain't showng no misfire in the computer
I swears when I turn on my van just sitting there I feel a misfire more often than any good person should. In my opinion, I shouldn't be feeling any weird shakin or nothin.
When she's been driven a ...
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Location of ims sensor or ifs sensor 2002 Hyundai santa fe
I have a 2002 Hyundai santa fe with the 2.7L V6 does this engine have a ifs sensor or ims sensor and if so where is it located on the engine.
The problem I am having is this, the engine will start ...
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Misfiring after not using car for one month
I have a Ford Focus 1.6 LX 16v 2004 MK1.
I went away for one month and after I returned the battery was dead.
I charged the battery, started the engine and took it for a short drive.
I noticed it was ...
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Code P2177, engine noise and power loss?
I have a 07 Mazda 3 and it seems like ita getting worst by the day. I have a check engine light on with the code P2177 System too lean, I'm pretty sure its losing its power when accelerating. I'll be ...
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2003 Toyota Corolla - Cyl Misfire + Lean Mix after month long storage. Possible causes?
I've not been driving my 2003 Toyota Corolla since we were ordered to shelter. Today, I turned it over and found it rough idling. ECU faults show as follow:
which reads:
Current Fault: P0303 - ...
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Spark Plug porcelain fell into cylinder
I own a 2016 Ford Mustang Ecoboost.
About a month ago, I had a misfire in cylinder 3. I Decided to just swap out all spark plugs, and only plug that gave me a problem to get out was of course #3. ...
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Cylinder misfires since having a full service on Golf MK5 2005
I took my VW Golf MK5 2005 (130,000 miles) to have a full service the other week which included changing all 4 spark plugs. Whilst driving home the engine management light came on and I lost some ...
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06 Chevy Cobalt: Low Power, Rough Idle (Misfires), now Water in Oil
Been driving it for two months now in cold Chicago weather.
-Car first was only experiencing weak acceleration and some minor engine "pulsating" at idle.
-On further probing during drive cycles with ...
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