Questions tagged [sparkplugs]

spark plugs are used to ignite the fuel-air mixture in a petrol/gasoline engine.

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6 votes
2 answers
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Spark plug working fine in free air, but hard miss in engine

This is mostly a curiosity question as replacing the spark plugs solved the problem. I have a mercury 40HP outboard two stroke motor. It is a twin cylinder and after running it out of gas it began to ...
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2 votes
1 answer
56 views

How harmful is it to not put oil in spark plug hole of a stored small engine?

I have a small engine inverter generator. This generator is to be used during power outages which happen rarely where I live, and also tested shortly every 2 years (the testing is also to keep the ...
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3 answers
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Should I replace spark plugs on a 2000 Toyota?

It seems like a fairly simple job so I am debating doing it myself. However, giving the age, is there anything I should be concerned about? Would the threads be aged to make removal difficult? What ...
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5 votes
1 answer
716 views

Do I change all four coils when I change one spark plug that is faulty

My nephew changed my spark plugs and coils. I have a 2011 Buick Regal and one of the spark plugs blew when I started it, so he removed it and replaced it with an old Prius spark plug. I would like to ...
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0 votes
0 answers
31 views

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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4 votes
2 answers
312 views

How do I remove all this silicone on my used vehicle?

3 weeks ago I bought a used 2009 Camry le last week the engine light came on and the reading said change ignition coils and spark plugs im pretty handy watched a video and ordered the plugs and coils ...
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2 votes
1 answer
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Car shakes since replaced spark plugs

I have a 2011 Lincoln MKZ and I just replaced the spark plugs and now the car shakes and Im getting a obd reading P0351- Ignition Coil A primary/secondary circuit P0113- Intake Air Temp Sensor 1 ...
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10 votes
5 answers
3k views

Can I use a 15lbs torque wrench for 13lbs spark plug job

My civic has 100,250 miles and the service came up for the spark plugs. B124, I am reading and it says after replacing the plugs to torque it to 13 Lbs. The only torque wrench I have is minimum 15 LBS....
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3 votes
1 answer
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Spark Plug Broke off in the Cylinder of Ford F-150

The electro shield and porcelain broke off in the cylinder when trying to replace the spark plug. I’ve bought and extraction kit and Cannot get it to work for the life of me, and do not want it to ...
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7 votes
4 answers
1k views

Can a altered curve of spark plug finger break the engine?

I own a quite old motorcycle - Aprilia 125 Pegaso and recently it stopped working, I figured out it could be the spark plug so I cleaned it and it started throwing sparks again but stopped working ...
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6 votes
4 answers
2k views

Engine start is OK but dies when applying throttle

Triumph Tiger 900 (1994) The engine starts fine and idles with choke. When I reduce choke and try throttle it just dies. Regardless of choke position, when I throttle, the engine dies. Thus, I cannot ...
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2 votes
4 answers
351 views

Spark plug repair kit tap will not grip existing threads in spark plug hole

I have a 2005 Hyundai Elantra that recently blew out a spark plug. My understanding is that I need to re-tap the spark plug hole and insert a sleeve. I purchased the Lisle 65200 plug hole repair kit ...
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1 answer
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I removed a spark plug from my “98” Lincoln to replace it, when I went to put the new one in it wouldn’t set down in and tighten. Will canned air work

I removed a spark plug from my “98” Lincoln to replace it, when I went to put the new one in it wouldn’t tighten. Can I use canned air without a spark plug in the well?
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1 answer
274 views

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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1 vote
1 answer
123 views

How to assess iridium spark plugs?

My BMW M3 E46 seems to be running rich on start and getting poor mileage so I pulled the plugs to have a look. I know how to read normal plugs but these are NGK Iridium plugs and I'm not sure how to ...
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2007 jeep liberty 3.7 only start I completely remove "any" sparkplug from cylinder then ground,

Only starts take out any one plug then ground to alternator starts right up, thought had to be bad ground so grounded from battery to engine block still won't start with all six plugs in Jeep Liberty ...
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2 votes
1 answer
56 views

Motorcycle ran briefly after swapping spark plugs, now won't run

My bike died on me the other day. It had been running fine prior but on the day it died the acceleration was acting funny, slowing down intermittently. I was able to get it running by swapping out all ...
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0 votes
1 answer
117 views

Black soot on spark plugs

I just took my spark plugs out on a 2006 V6 Toyota Tacoma and noticed some soot on most of them, to varying degree. Could this indicate that the engine is burning oil? I do lose quite a bit of oil and ...
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3 votes
2 answers
158 views

Spark Plugs go bad yearly despite moderate use - Mini Cooper R56

I use mini cooper for once or twice weekly drive. The spark plugs of the mini cooper R56 goes bad on this moderate use every year! What is the reason for this? I obtain genuine spark plugs and the car ...
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0 votes
0 answers
36 views

GY6 scooter spark plug getting voltage, but no spark?

I have a gy6 scooter that's not getting any spark, but I've done troubleshooting on the whole system (except the stator) and I can't find anything wrong. Every part I've checked from the stator power ...
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0 votes
1 answer
39 views

Won't go when out in gear [closed]

I have a 1500 Suzuki intruder that I changed oil oil filter and gear lube on Plus changed plugs now when I put it in first it dies why
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0 votes
1 answer
105 views

Oil got onto spark plug threads - Possible torque issue?

My car has a small oil leak which caused one of the spark plug holes to have some oil in it. When I replaced the spark plugs today, oil got onto the threads of the old spark plug, so I'm fairly ...
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1 vote
1 answer
54 views

Replaced ignition coil pack - should I replace spark plug too?

My engine was recently misfiring and I replaced all of the spark plugs as a first attempt to get things working. It did not fix the problem, and the misfire continued. However, I did notice that for ...
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2 votes
1 answer
90 views

Is my mixture too rich?

I've been running this single cyl scooter with this plug to about 30K KM (~19K miles). Replaced it today and it seems a bit dark. Is the engine's mixutre too rich? enter image description here
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3 votes
3 answers
729 views

Metal object in spark plug hole

When removing the old spark plugs from my CB500S, I managed to snap an old spanner which I was using on the spark plug tool. The small piece of metal has fallen into the hole and is now next to the ...
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1 vote
2 answers
83 views

Frozen spark plug in a 2008 3V 5.4L F-150

I was able to successfully change the spark plugs around 75k with no issues breaking off the two piece plugs. I replaced them with Motorcraft plugs. Fast foward to the present at 133k miles and due to ...
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1 vote
1 answer
60 views

Is excessive greasing of coil pack terminals standard practise?

I was swapping out some coil packs and found the ones in my car were packed with a ton of greese. Im quite impressed the vehicle was running at all with that much greese between the terminal and the ...
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4 votes
2 answers
584 views

Spark plug fell into cylinder and I can't get out

This is a on a 2016 1.6L Ford Escape. In picture 1 you can see the spark plug in trouble - it is too deep for some reason, we got the old one out but when we put in the new one, it fell too deep. The ...
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0 votes
3 answers
100 views

How to tighten spark plugs properly?

Hyundai coupe 2.0 2006 I cannot see it in the owners manual. Can anyone tell me what the torque setting for spark plugs on this vehicle are? How can I do this properly without a torque wrench. I’...
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1 vote
0 answers
56 views

Honda Interceptor 1987 Spark Plugs getting carbon fouled within seconds. Vehicle idling louder than usual

I recently installed a new engine on my Interceptor. After riding for about half an hour the bike petered out. I left in in the garage for about 7 months before installing new spark plugs. This got it ...
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0 votes
1 answer
53 views

A single spark plug out of 4 (4cyl 1.4 MPI endine) keeps getting carbon buildup

A single spark plug out of 4 on our 1.4MPI engine keeps going dirty from carbon buildup. This causes engine issues (losing power). After being cleaned it's fine for a while, but the issue returns ...
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0 votes
1 answer
20 views

2008 4.6L mustang

I have been looking for spark plugs for the old H code engine. It is a fine thread and used a 5/8 socket. Its a 2008 ford gt mustang. Any ideas of what soark plug would work? Thank you in advance
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1 vote
1 answer
61 views

Upstream vs Downstream O2 sensor | Maintanance

I had my car checked up last year and the mechanic said that I will have to replace the oxgyen sensor. I at that time did not have it replaced. Recently I noticed that my car Mini Cooper 2011 started ...
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0 votes
1 answer
35 views

Spark Plug Information After Spotting a Lot of Incorrect Information on Here [closed]

Spark plugs are at the centre of the ignition system on all petrol-based vehicles. Some are copper cored as copper is a good conductor of electricity. NONE have copper electrode tips, as they would ...
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1 vote
1 answer
59 views

Will replacing spark plugs fix this? [closed]

My husband and I purchased a 2011 Mazda 6 2-3 months ago. It had 71,000 mi on it when purchased. One accident, but only cosmetic. A few weeks after driving it, I noticed some jerking when coming from ...
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0 votes
0 answers
64 views

What, if anything, does "Spark plugs starting to blow through" mean?

I just took my old car (2004 Toyota Wish - 1.8 litre petrol engine, 185000km) to a mechanic for a basic service and warrant of fitness. The vehicle passed the warrant, but I was advised "spark plugs ...
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0 votes
0 answers
90 views

Melted spark plug on 50cc scooter

I recently adjusted my valves on my wolf v50 scooter. I put a new cdi box new plugs and took off the air filter box and on a cone filter on it. It ran great then all a sudden it just died as i was ...
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0 votes
0 answers
31 views

I have a 2008 Ford Expedition XLT

I have a 2008 Ford Expedition XLT. While changing my spark plugs I didn’t push them down as far as was required therefore on two of them the hook broke off and now it’s making a clacking metal sound. ...
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0 votes
0 answers
22 views

Posibly Wrong Spark plug gap?

So this is an update on my last question, the comments were a mess and I was new to the site I have a 1985 nissan 300zx vg30e and I just changed the spark plugs and its idling really rough and at ...
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5 votes
1 answer
605 views

Sparkplug impossible to manually remove

The story is that the Mrs has got a little 2T scooter and managed to tank it up with some naff petrol that probably had ethanol additive or something and was sitting around in the garage for a few ...
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0 votes
1 answer
106 views

spark plug gap gets smaller

so im trying to get my atv running and i took out the spark plug and realized that the center electrode and ground electrode was touching no gap at all so i pulled them apart and put it back in tried ...
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5 votes
4 answers
6k 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. ...
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1 vote
1 answer
56 views

Is it safe for me to drive home?

I have a 2009 Honda Fit, I had the spark plugs replaced but I’ve been having trouble with the 4th cylinder. I got it looked at two weeks ago but now it’s doing it again. My car smells of gas and there’...
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24 votes
7 answers
9k views

How do cars drive through deep water as shown on many videos online?

I have read many warnings about driving a car through deep water. Some problems that this can cause is destroy the catalytic converter and in petrol engines water can cause damage to spark plugs. And ...
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0 votes
2 answers
118 views

Ignition coil replacement

My girlfriend has a 2007 Nissan Sentra with 160000 miles on it. She does not think the spark plugs have ever been replaced which leads me to believe that the ignition coils have also never been ...
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1 vote
3 answers
603 views

Does the electrode of a spark plug break when the engine runs too hot?

I have an Audi A5 1.8 TFSI Sportback from 2011, bought it recently (4 months ago), which ran fine until two weeks ago. The engine went through diagnosis and the operator showed a broken spark plug to ...
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1 vote
0 answers
75 views

New car 10k miles with spark knock detonation. Do my plugs look good?

I have a Ram 2018 Promaster city van I bought brand new with zero miles. At around 4000 miles the van's engine light turned on so I took I to the dealership and they replaced the MAP sensor. At 4500 ...
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2 votes
2 answers
2k views

Dropped sparkplug from a small height, is it still fine?

I've replaced the coil pack and fitted new spark plugs. However, the salesman, while handing me the plugs, accidentally dropped two of them on his table. I remember them dropping from about 2 inches ...
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2 votes
0 answers
299 views

Mechanic said I put wrong fuel on my car, I know I didn't. What can I do? Who is to blame?

I have a Toyota Yaris hybrid from 2018. Last saturday my tank was half-way full, but I had to buy some things at the gas station and decided to purchase 7 or 8 litters of unleaded gasoline (10 euros). ...
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1 vote
2 answers
97 views

I have a Ford Expedition and my spark plug is broken

Here is my broken spark plug. The porcelain is not letting the 'easy out' do its job. How can I take it out?
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