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Questions tagged [misfire]

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

50 questions with no upvoted or accepted answers
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votes
1answer
97 views

Toyota 4Runner - automatic (Old model ) misfires and delay in changing gears. What is the problem?

My Toyota 4 Runner (old model) misfires and seems lazy especially while climbing hills. There is also a delay in changing from gears 2 - 3 and 4. Can someone please help to advise? Thanks in advance.
4
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2answers
2k views

Help identifying misfire conditon on 1998 Honda Civic DX

I'm struggling to identify the cause of a misfire condition in my 1998 Honda Civic. It has D16Y7 engine with 185,000 miles on it. The spark plugs, wires, distributor cap, rotor, and ignition coil ...
4
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0answers
59 views

1st and 2nd cylinder not combusting in dual carburetor'red setup

So I have a Maruti Esteem engine with a dual carburetor on an engine dyno and everything was already installed when I joined this lab. We seem to have a problem when trying to fire the engine. 1st and ...
4
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0answers
84 views

03 chevy impala- I have a bad misfire

When I push on the gas it hesitates to go. The check engine light starts flashing but once it gets rolling its gone. I change the spark plugs, put in a gas treatment, shot some B-12 in it and ...
3
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0answers
54 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....
3
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0answers
44 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 ...
3
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0answers
582 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 ...
3
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0answers
592 views

P0302 error code Nissan Primera p12

I own a 2004 Nissan Primera P12 with the 1.8 litre. My car MIL started glowing for two weeks. I read the code it was P0302 which is misfire in cylinder 2. I checked ignition coil and spark plug. I ...
3
votes
0answers
123 views

Jet Boat, Cavitation or Misfire?

My jet boat is making a 'putting' noise when trying to accelerate. You can find all details regarding my boat here: My Boat Info The noise seems to happen in the mid-rpm range; 4,000 - 4,800 RPMS, ...
2
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0answers
8 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 ...
2
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0answers
42 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 ...
2
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0answers
131 views

Peugeot 207 2009, issues with LPG

My 207, since about a year, is having some troubles 'passing' to LPG. It starts regularly on petrol then, as soon as the ECU switches to LPG, if I'm not pushing on the gas, it shuts down. My work-...
2
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0answers
47 views

Changed radiator and hoses on 97 Toyota Tacoma now check engine light on

After getting new radiator and hoses on 97 Toyota Tacoma check engine light came on. Diagnostic said misfiring changed all plugs and old coil wires light came back on, diagnostic says #6 misfiring. ...
2
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0answers
33 views

2002 Nissan Quest breaking down

I was given the vehicle after it had sat for over 7 months. It sat with 3/4-1/2 a tank of gas. It was not cranked once. It is now idling and running very rough. It doesn't want to accelerate and when ...
2
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0answers
2k views

Sudden Random Misfire and Stalling RX300

Preface: This is my sister's car, so I was not there at the moments leading up to it misfiring and stalling, but I'm the one who gets to fix it. It's a '99 Lexus RX300, and about a month ago I ...
2
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0answers
426 views

Fiesta 1.4i lx Zetec engine 2002 model Mk6 - Misfire on cylinders 1 & 4 only

Fiesta 1.4i lx Zetec SE / 1st reg 2002 / manual Hi There, I have just cleaned and replaced the throttle body and renewed the spark plugs, coil, air filter and HT leads and on start up the vehicle now ...
2
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0answers
71 views

My megane 1.6 2005 is running poorly

My megane just started running poorly miss firing , loss of power and a horrible fuel smell got it on a diagnostic machine it said camshaft position sensor .Ive just replaced that and its still ...
2
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0answers
64 views

09 ford f-150 misfire cyl.5 and 7 only has spark and pulse only went is hot

this hapen after drive the truck for 10 to 20 minutes went stop star misfire at idle only 5 and 7 cyl. has spark and injector pulse if i race the rpm couple time the engine star run normal again
2
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0answers
681 views

peugeot 207 cc depollution system faulty when roof down

My wife's peugeot 207 cc is showing "depollution system faulty" and the engine management light comes on but this only when the roof down, also seems to be missing on a cylinder ???? I also borrowed ...
1
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0answers
14 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 ...
1
vote
1answer
27 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'...
1
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0answers
22 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 ...
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0answers
166 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 ...
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0answers
55 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 ...
1
vote
0answers
177 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. ...
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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 ...
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0answers
95 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 ...
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0answers
4k 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 ...
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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?
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0answers
687 views

misfire only on startup - 2008 Chrysler 3.3 V6

2008 Chrysler Town & Country, 3.3 flex fuel V6, 170k miles. Random misfire code, shaking upon startup and very bad with no power when it's put in gear, stops happening after I get going, like ...
1
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0answers
118 views

2005 Mazda Premacy mid range stutter, hesitation

I have a 2005 Premacy that has developed a mid range stutter or hesitation. 150k and regularly serviced, though by a local mechanic, not a Mazda dealer. It threw a fault a week ago, P2177, which I ...
1
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0answers
55 views

Cylinders misfiring

I have a 1999 Buick Lesabre Custom that I've had for about a year now and about a month or two ago the check engine light came on and it's been flashing. I got it diagnosed and it said spark plugs and ...
1
vote
0answers
28 views

Truck only miss fires when it gets up to temp

07 GMC Sierra 1500 5.3 engine - it radom misfires after it warms up. I have changed 1 coil pack, map sensor, plugs, and wires. It only does it after warming up to temperature. What might be the issue.
1
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0answers
4k views

Misfire in cyl 7 on 2007 Suburban 1500 4x4 with 5.3 L flex fuel LTZ

2007 Suburban 1500 4x4 with 5.3 L flex fuel LTZ 267,000+ miles. Having trouble with running rough and misfire. The ODB II indicates P0307. Checked wires - replaced though nothing is wrong, no ...
1
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0answers
91 views

2017 Volt misfire during open loop

2017 Volt Engine misfires while in open loop. No DTC, so dealerships cannot diagnose. Their mechanic experienced the misfire on test drive. Intermittent miss: similar to a failing plug wire. Question: ...
1
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0answers
251 views

2003 Mercedes Benz C320 Having ROUGH IDLE issues

Aloha, I just had the spark plugs changed yet the ROUGH IDLE is still there. Is this a Misfire? Don't know a thing 'bout cars. Asked the owner who said he must ask the mechanic to see if the cylinder ...
1
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0answers
125 views

Truck misfires/backfires/shakes/loses power when cold

I have a 2003 Dodge Dakota and before the engine warms up it will misfire backfire have low power and sometime shake when accelerating or going up a hill. after it warms up it doesn't do any of this ...
1
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0answers
39 views

Multiple misfire on a 1998 Infinity Code

I bought a 1998 Infinity, and it has been running poorly, with a poor gas usage. I went and had a parts store run the computer, It gave me the code Multiple miss fire, along with Knock sensor, Evap ...
1
vote
1answer
68 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 ...
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0answers
15 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? ...
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0answers
40 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
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0answers
23 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
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0answers
30 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
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0answers
24 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
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2answers
44 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 ...
0
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0answers
26 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
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0answers
18 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 ...
0
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0answers
7 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 ...
0
votes
1answer
217 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 ...
0
votes
1answer
52 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 ...