Questions tagged [misfire]

A condition where one or more engine cylinders experiences lack of combustion or mistimed combustion through detonation

Filter by
Sorted by
Tagged with
5
votes
3answers
768 views

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. ...
1
vote
1answer
49 views

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 ...
0
votes
0answers
13 views

Jeep Liberty won’t stay on

It first started misfiring so I changed the oxygen sensor. After that it all went bad. The Jeep would not crank up to start. After a few fires it started, but when I released the gas the rpms would ...
1
vote
0answers
31 views

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 ...
0
votes
0answers
50 views

Sludge in the oil of a Subaru Forester

My Subaru Forester has 105k. For the past three years, I've had to add oil to it at an increasing rate. In the past few months, I've had to add a quart every week or two. I have recently found out ...
2
votes
1answer
97 views

Engine jerks at certain RPM - Misfire & fuel system over pressure [P000F, P0302]

My Audi A5 1.8t has started having some hiccups after an engine job (Changed valves, timing chain & camshaft intake side) The car starts fine, it sounds fine, but it has the following problems: ...
1
vote
0answers
18 views

My hyundai Accent 2012 is having issues when accelerating

My hyundai Accent 2012 is having issues when accelerating. It works great on low speed, but past 30kmh, if I accelerate more than regular cruising, the RPM will drop heavily and I can feel an heavy ...
1
vote
0answers
28 views

Can I learn anything about a misfiring cylinder from the fact that the dialectric grease around the plug is discolored?

On the way to the in-laws yesterday my 2008 fusion started bucking. Code reader says I'm misfiring on cylinder 2. I popped off the coil boots thinking I'd swap them and see if the problem cylinder ...
3
votes
1answer
304 views

Can lack of oil cause P0300 Random Misfire?

I get OBD code P0300 Random Misfire (and no other error codes) on a very poorly maintained car. I changed the valve cover (whose spark plug well gaskets were degraded) and spark plugs, but the engine ...
0
votes
1answer
64 views

I have a 2012 Chevrolet Camaro 2lt with a lot of problems

I have a 2012 Chevrolet Camaro RS and I'm getting a cylinder 6 misfire. I swapped the spark plugs because they were burnt, but I'm still getting a cylinder 6 misfire. I even checked the coil packs. ...
1
vote
2answers
158 views

Low compression in one cylinder with a misfire code, but no smoke in the exhaust

Chevy V6 4.3 with 281k miles. It recently threw a misfire code isolated to cylinder #3. The misfire seems systematic and not random, though, as it idles rough. I've got an open question on it already, ...
1
vote
0answers
31 views

Chevy Blazer 4.3 with p0303 error (cylinder 3 misfire) shortly after running medium-hot: now wonky idle, but smooth at high RPMs

I've got a 97 Chevy Blazer with the 4.3 and 281k miles. It might be of-note that a shop replaced my Lower Intake Manifold gasket about 18 months ago. At the very end of a long trip this weekend it ...
0
votes
0answers
18 views

Misfire data log

I'm trying to understand what is the meaning of "Misfire" in this graphs, it always starts with value 0 and then can move up to 3. Is it a sensor? if yes what exactly it measure? if not, what is it? ...
2
votes
0answers
11 views

2010 GMC Terrain misfires & leans codes

My 2010 GMC Terrain while maintaining a speed of around 60 - 70 mph starts to hesitate and if I don't release my foot from the pedal I will get flashing check egine. I've noticed it likes to happen ...
0
votes
0answers
49 views

2009 Honda Accord 4-cyl

I changed the crankshaft. Now my car wont work when I give it the gas, it wants to shut off. Check engine light is on. Had Honda and another mechanic look at it montell me starter I think not I ...
0
votes
0answers
29 views

What causes P300, P301, P303 and P304 after driving several miles? 1999 Accord 2.3l

I have replaced the spark plugs, which were oily, cleaned the tubes, replaced tube seals (which were cracked), and have not seen oil leaks since, but the misfires persist. The wires are fourteen ...
0
votes
0answers
36 views

Does a puddle of Seafoam cleaner indicate a vacuum leak?

Engine is "skipping", cutting out or what seems like a misfire (?) every once and a while. (Even more so when the AC is on). To start, did the SeaFoam throttle body cleaner, as shown here: How ...
0
votes
0answers
67 views

VW Fox misfiring

I have a vw fox 2006 1.2 and have had it for just over 3 months. I have noticed it starts to misfire and the engine loses power sometimes coming to a complete stop after a stall or judder when revs ...
0
votes
2answers
85 views

2005 Subaru Legacy Cylinder 3 misfire

My Wife's Subaru's check engine light recently came on, when we went to auto zone to check the code it came back as a cylinder 3 misfire, we went to our mechanic and he changed the sparkplugs, but ...
1
vote
1answer
41 views

P3431 P0304 but engine does not feature cylinder deactivation?

2010 Dodge Grand caravan 3.8L (I think) CEL light came on and codes pulled were p0304 p0300 and p3431 , I'm curious as to what's up with the p3431. Looking it up on the typical obd sites say that it'...
3
votes
2answers
1k views

Narrowing down cause of misfire when engine is warm

2001 Toyota Tacoma 2WD 2.4L 4cyl. Just under 100k miles. Looking for guidance on narrowing down the culprit for a misfire. Here's the pattern: Truck runs fine from a cold start, and continues to run ...
0
votes
0answers
33 views

Engine misfiring past 70-80pmh

I’m having a bit of trouble with my car however nobody can seem to diagnose the problem. I got the car three months ago and within the first month driving on the motorway I reached about 80 mph and ...
0
votes
0answers
31 views

Huyndai sonata 2012 engine misfires

I have Huyndai sonata 2012 GDI 2.4 cc The car starts just fine, but after few miles the engine misfires in the same cylinder, and when i stop the engine and run it again, the engine go back to normal ...
3
votes
0answers
75 views

Why does my NB Miata struggle to start when shut off for a short time?

Why does my 2000 Miata 1.8L (104000 miles) struggle to start when shut off for a short time? This doesn't seem to happen as frequently when starting up after being off over a weekend or just overnight....
0
votes
0answers
8 views

2005 F-150 High B2 LTFT

Been chasing this for a while now. LTFT B2 likes to sit around +20% at idle and up to 3000RPM B1 will sit at about 12% at idle and drop to 6 at higher RPMS. It is also beginning to buck a bit when ...
3
votes
2answers
1k views

MAZDA 3 2006 (UK) - poor acceleration then takes off at 3250 revs

I have a 2006 Petrol Mazda 3 1.6, with 74k on the clock. I have a problem where the car is really jumpy with poor acceleration when it is accelerating from 0 up to 3250 revs, it feels like it is ...
1
vote
1answer
90 views

Weird object in cylinder head preventing spark plug install

My friend has an 04 Acura TL (Engine Model J32A3). The car was loosing power and shuddering and the engine light came on. It appears that each cylinder is misfiring. Below is a screenshot of the code ...
0
votes
1answer
100 views

Spark jumping off wires and into any ground near them. Wires are new

I have an old opel astra 2.0 8v. Thing is car idles rough and you can feel it misfiring very often, mostly at idle. In the dark you can see 3 of 4 cylinders have the spark jumping off the wire boot ...
1
vote
0answers
23 views

2000 Jeep Grand Cherokee 4.0 200k miles - 02 Sensor and cylinder 5 misfire code come on at the same time

People keep telling me it can't be an 02 sensor, and other people keep telling me that an 02 sensor has given them a misfire so I'm not sure what to do. I've replaced the plugs (old ones were in bad ...
2
votes
0answers
43 views

Clicking sound in engine, very strange evolution

I have come here in hopes to get some help regarding my impala. It is a 2006 Chevy Impala with a V6 engine, I was out of town for 2 weeks and when I got home I got in my impala and stated her up. it ...
3
votes
0answers
47 views

1997 s10 4.3 misfire/dead cylinder

I have a 97 s10 4.3 W vin with 273k miles that sat for 3-4 years due to a bad clutch. Recently replaced the clutch and fuel pump got it running and the #5 cylinder was dead no spark replaced all 6 ...
0
votes
1answer
321 views

Misfire and loss of power at between 2800 and 4000 RPM

First I need to start off by saying that NO Check Engine codes are thrown by this issue. Car is a 2007 Mazda CX-7 turbo, non-awd. What's happening: This can be broken down into 2 section really, a ...
1
vote
0answers
217 views

Cyclinder 2 misfire error code - 11 Dodge Journey 3.6L V6

2011 Dodge Journey Mainstreet 2wd 3.6L V6 100k miles Check Engine Light on, first read Low Voltage replaced Battery Check Engine Light came back on, 2nd read Cylinder 2 misfire, & Thermostat ...
1
vote
1answer
2k views

What would cause a BMW 3 series E90 to misfire until the engine has warmed up?

I took my car to a mechanic because of misfiring issues. He said his computer told him it was an ignition coil pack issue, specifically coil 1. Anyway, he changed it and the car was still misfiring. ...
2
votes
1answer
69 views

After mechanic work, car starts fine but accelerating stalls the engine

I own a 2003 Mitsubishi Lancer, and have been the only owner and mostly the only driver. About a year ago I had a weird misfiring problem where if I pushed the accelerator down more than half way it ...
0
votes
1answer
61 views

Engine misfire and poor mileage

My 2015 Chevy Suburban has 180k miles and now it gave me a check engine light code with a misfire. It shakes a little bit and does not give good fuel mileage. Also, the reader on the speedometer use ...
1
vote
1answer
95 views

1998 4Runner 2.7 Misfire with DTC P0171, P0300, P0301 , P0304

While driving on the highway, suddenly the CEL started flashing and the truck started msifiring, I got off the highway and retrieved a P0171, P0300, P0301 , P0304. I shut it off and waited for a few ...
3
votes
0answers
705 views

2013 Subaru WRX P0300

On a Subaru 2013 since 70,000 miles I've had the fun P0300 code activated and my check engine light on, cruise and traction control disabled. I do not have any other misfire codes being shown(unlike ...
0
votes
1answer
121 views

My 1997 lancer jerks when accelerates and shakes when idling

i got a big problem, I have a 1997 Mitsubishi lancer, with a 1.6 liters engine, a 4g92 to be exact, and when Its idling it keeps shaking, the exhaust sound like there are little misfires, but no check ...
1
vote
0answers
67 views

Car Jump Started in wrong way

We switched the jumper cables when trying to jump start my Altezza 4 cylinder. Main fuse and other fuses were blown. I replaced all the damaged fuses and battery. When we eventually got the car to ...
2
votes
2answers
319 views

Misfiring and loss of brake power

i have a 2004 VW Golf 4 which misfire and brake loss of power. i have bunch of codes which i don't know how to go forward. the codes are; 18321, 18034, 18020, 18014, 17839, 17924, 16725, 17580, 17952. ...
1
vote
0answers
179 views

Renault Megane 1.4 will not start

2003 Renault Megane 1.4. Will not start. Code reader gave message that cylinder 4 misfiring, but have replaced it and also pencil coil. Zeroed the code reader. Checked fuse box - no corrosion/grease. ...
1
vote
0answers
23 views

1996 Jeep Grand Cherokee misses on the highway, not on surface streets

My good old Jeep Grand Cherokee, 1996 and original owner with 274,000 miles is, the last few days on the freeway only, missing and semi stalling. No check engine lights, all fluids etc. are fine. I ...
1
vote
0answers
97 views

Misfiring problems

I have 98 Sliverodo 5.7 vortex. It ran hot on me and I was told it was my head. Well turns out that it was an intake gasket. So I replaced the head and intake gaskets. Once I put it all back together ...
2
votes
2answers
1k views

Motorcycle lost power during hard acceleration, made sneezing/popping noises, now won't start

I was riding my 2017 Husqvarna 701 Supermoto hard for about an hour today when all of a sudden the bike started losing power during hard acceleration. I first noticed it when I tried to power wheelie ...
1
vote
1answer
767 views

07 Dodge Caravan with 3.3 cylinders 3 and 6 misfire

I have a 2007 dodge caravan with a 3.3 with a misfire on cylinders 3 and 6 ( no spark coming from coil to plugs on cylinders). I have changed the plugs the wires. The coil twice and the crank sen. I ...
1
vote
0answers
5k views

Did I completely ruin my engine from driving with no oil?(video)

I have a 2004 elantra, not sure how many miles are on it because the odometer has been broken since I got it four years ago but I'd say it's over 200k. It's a car that needs a lot of upkeep and I've ...
1
vote
1answer
892 views

MINI Cooper limp mode without a CEL

Yet more strangeness with my 2008 Cooper S. Limp mode comes on almost immediately after starting the car for the past few days. This displays a half-filled engine icon on the dash and greatly limits ...
0
votes
1answer
63 views

1996 Ford explorer XLT 5.0

My explorer has what sounds like implosions or miss fire's in the intake when taking off and wants to stall and will stall when I come to a stop can anyone help. Some times runs rough some times runs ...
1
vote
0answers
32 views

Persistent miss on cylinder #2

Dodge 2004 Grand Caravan 3.8 motor. Changed plugs, wires, coil pack. #2 cylinder not getting spark. Where should I look next?