Questions tagged [misfire]
A condition where one or more engine cylinders experiences lack of combustion or mistimed combustion through detonation
213 questions
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I have a code for 3 misfires, fuel tank ventilation, and car running too lean on my 2004 BMW 325ci
My car has been eating up coolant but is not overheating. There is white exhaust smoke coming from my tailpipe when idling and heater on. I have low engine performance and sludge. Rough idle. Loss ...
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2003 Audi A4 Quattro, 1.8t Misfires
Showing codes for multiple misfires, and running to lean. Thought it was fuel issue at first, brought it to a audi mechanic who said it was my sparkplugs.. while I had changed them upon the misfire. ...
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Peugeot 2008 turns off mid-drive and burns huge amounts of oil. What could be the reasons and how to fix?
My Mom bought a used 2017, Peugot 2008 1.2 puretech turbo Gasoline/Benzine Automatic car,
When she drove it before buying she said it drove well, 2 days later the car started to shutdown mid-drive ...
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2013 Jaguar XF Shaking When Idling/Accelerating
2013 Jaguar XF Shakes When Idle/Accelerating
Hello,
I was driving back for a two hour drive and my 2013 Jaguar XF began to shake a lot whenever I accelerated and whenever I let the car idle. It did ...
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How to electrically test Diamond FK0140 coil packs?
I have rust on my Subaru's coil on plug packs so thought to test resistance of the primary and secondary windings for all 6 coils to check for any inconsistencies. These are the Diamond FK0140 with a ...
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Same side multiple misfire jeep liberty 3.7 troubleshoot
All three cylinders misfire at the same time on the same side. What’s the reasoning?
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Engine misfires in drive at a stop but not in park
Why would my 4-cylinder 1999 Toyota Camry misfire in drive but not in park at a stop? It is not a constant skip just sometimes in drive. It is not getting worse maybe very very gradually. I am sure ...
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Coolant leak / engine overheat / cylinder misfire
Make: Honda
Model: Civic 1.8L 2007 petrol
Miles: 107,000
I have experienced cold air coming from heating system for a while - I probably should have addressed this sooner.
Finally when driving ...
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Can't diagnose consistent misfire 2005 Chevy Malibu
My 2005 Chevy Malibu has a misfire on cylinder 3. The symptoms are:
Shaking at idle
Knocking sounds as I accelerate, but only under load (sounds fine if I rev it up in neutral)
P0303 engine code ...
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Misfire issue on a 2014 Infiniti QX 60
I have some issues with a 2014 Infiniti QX60 (3.5 V6) that the car repair show is unable to find. I have a misfire code P0300 (random misfire detected).
Here are the issues with the car:
Car is ...
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2000 Honda Accord misfires only some of the time. What is causing this?
It has a very odd pattern for when it misfires.
You start it at the beginning of the day and it works perfectly. You drive it around, turn it off, let it sit for 30 minutes, start it again, and you ...
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Engine misfire, low gas mileage, click when gear change
I got a tune up, radiator and radiator hose, serpentine belt, starter and wheel bearing fixed.
The misfiring, bad mileage and clicking noise didn’t start until after the tune up. What could be wrong? ...
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2013/Toyota/Corolla S: Check Engine (with codes), Rough Idle, Inconsistent temp. What am I missing?
As title states: 2013 Toyota Corolla S
Had the check engine light come on just around a month ago and started idling rough. Pulled codes: P0301 (cylinder 1 has a misfire) and P219A (air to fuel ratio ...
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Will alien component found in new engine tear down effect valve behaviour?
OMG, I might have found the cause of a misfire in cylinder 1 that has been the bain of my life on and off for 3 years.
I have a 1979 sherpa van with an austin/leyland "o" series engine. The ...
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Is it possible to have a good looking spark but but still not suitable for ignition?
I have a misfire on cylinder 1 unyet i have 4 great sparks with ignition timing and valve timing checked.
I'm clutching at straws i know, but is it possible to have a long reaching spark bridging 20mm ...
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Can i drive my 2016 Jeep Grand Cherokee 100 miles to a mechanic with a misfiring cylinder?
My 2016 Jeep Grand Cherokee started hesitating when accelerating, but only after the engine warms up. The testing tool says it's a cylinder 2 misfire. The mechanic I want to take it to is 100 miles ...
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Misfire! Does good compression mean there are no valve issues?
I have a new old stock sherpa "O" series petrol engine 1991 that I installed 3 years ago. I have a misfire on cylinder 1 (detaching spark plug lead makes virtually no difference to the ...
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1984 Lincoln Town Car EEV-IV Bucking
I am working on a 1984 Lincoln Town Car with EEV-IV throttle body injection.
The car is entirely stock and extremely well taken care of, with all original systems on the car (air injection, EGR, cats)....
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The arm of my sparkplug somehow broke how concerned should I be?
I was driving my 2009 Toyota Corolla Ce on the highway today when my check engine light began flashing. So I got it towed back to my house for my grandpa to take a look at. He used a code reader to ...
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Will fixing first OBD2 misfire codes resolve the cascade of others downstream?
Looking at a car my kid wants to buy. 2012 Honda Civic LX. One owner, some service records, seemed to run fine in test drive. No colored exhaust gasses, no dashboard lights, sped on freeway, sudden ...
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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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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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