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Questions tagged [sparkplugs]

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

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1 vote
5 answers
3k views

96 Civic - Car loses acceleration, doesn't start, shuts off

My 96 (or maybe 97) Honda Civic does some strange things. They are all connected. It will frequently refuse to start. It's not a battery/alternator issue, as it's trying to crank. It just ... refuses....
0 votes
3 answers
62 views

MAF and MAP location

I have a 2000 Pontiac sunfire se 2.2 I’m having trouble locating the MAP and MAF sensors. The mechanic I took it to said he can’t work on my car cause it didn’t stall enough while driving my car.. ...
3 votes
1 answer
4k views

Sparkplug ground electrode burned off

2010 Ford F-150 5.4 3valve did a tuneup changed sparkplugs and coils with correct Motorcraft plugs and AC Delco COP’s now I have burned off 2 ground electrodes in less than 100 miles. No codes on the ...
5 votes
1 answer
182 views

Ford Expedition knocking and repeated spark plug wire failures

Is this the underlying problem or a symptom of something else? I have a 1999 Ford Expedition that has a knocking and pinging problem. Two different mechanics have narrowed it down to the ignition ...
0 votes
2 answers
70 views

How do I get porcelain out of cylinders

I was changing my spark plugs on my Cadillac CTs and the porcelain on the spark plug broke into pieces and a piece half the size of a Churrio fell inside my cylinder and when I look inside the ...
0 votes
1 answer
773 views

My 1.4 corsa looses power and judders

I have a 2018 corsa with 89000 on it is just looses power when am driving like it’s going into limp mode but doesn’t. And when I’m at a stop it judders and cuts out but starts straight back up no ...
0 votes
1 answer
96 views

Why after I change my spark plugs and coils and when I looked had gas on one spark plug

I have a 2006 Ford escape I changed the spark plugs and I changed the coils but it still has a very rough idle and it sounds as if it could be a problem I pulled one of my plugs out and it had gas on ...
0 votes
1 answer
230 views

F150 blew out Dorman plug patch kit, safe to drive?

I have a 2005 F-150 STX (4.6L Triton) in which the spark plug in cylinder 3 blew out. I hired a mechanic to install a patch kit (he used the Dorman Help! Kit) and that kit itself also blew out of the ...
2 votes
2 answers
368 views

Why does ignition occurs during the power stroke in spark ignition engines?

Why does ignition occurs during the power stroke in spark ignition engines and not during other strokes in the four-stroke cycle?
0 votes
1 answer
11k 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 ...
1 vote
1 answer
223 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 ...
0 votes
1 answer
101 views

How to test a P2306 code - Ignition Coil error

I have a P2306 (Ignition Coil C Primary Control Circuit Low), so I swapped all ignition coils from their original place to another cylinder to verify the faulty ignition coil (I expect now to be in ...
3 votes
2 answers
509 views

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 ...
2 votes
1 answer
2k 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 ...
0 votes
0 answers
60 views

is car idling bad for 21st century modern day car?

I have a 2016 Toyota corolla. I hardly drive anywhere. I have around 92000 km on the odometer. I live in Canada, and therefore, the winters are extremely cold. When winter is in full swing, I turn on ...
2 votes
1 answer
73 views

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 ...
1 vote
1 answer
88 views

Tube holding spark plug spinning with spark plug

I have been trying to replace the spark plugs on my talbot express 1989, I have been having some trouble with getting the 21mm spark plug tool to fit into the spark plug hole, however after shaving ...
0 votes
0 answers
34 views

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 ...
1 vote
2 answers
3k views

Problem with Spark Plugs Repeatedly Fouling

My 2016 Honda Odyssey EX-L has fewer than 80k miles on it. Yet it's already had its check engine lights come on leading to replacing a few of the spark plugs and ignition coils. The problem hasn't ...
0 votes
2 answers
571 views

Spark plug gap confusion

I recently bought a 2008 Jeep Grand Cherokee with a 3.7L engine, when I went to tune it up the spark plugs were set at 0.035 which is recommend by AutoZone ( auto parts store ) but the jeep Cherokees ...
1 vote
1 answer
63 views

Hole in one, 2000 Ford Mustang GT

Well, it’s been a rough day. One that started off with simple changing spark plugs ended with fishing for a socket and two magnets. Socket fell down through the hole and onto the piston, tried to ...
2 votes
2 answers
110 views

2012 honda pilot broken spark plug

I broke a spark plug off while changing them and when looking in the hole with my camera saw there was still porcelain left from the plug, couldn’t get anything in there to fit to break it out so i ...
0 votes
2 answers
517 views

2009 Ford Escape Hybrid - Ignition Coils and Spark Plug Replacement

I've purchased the parts and done my research. Basically, I am seeking some insight here to gauge if my understanding of the procedure is sufficient, that I have acquired all the necessary parts, and ...
2 votes
2 answers
1k views

How can I diagnose what's causing oil on spark plug threads?

I changed the spark plugs for the first time on my 2008 Mazda3, ~118k miles. Three of the four plugs had oil on the threads, on the top of the plug (where the wrench sits), and on the electrode. The ...
2 votes
5 answers
2k 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 ...
23 votes
2 answers
18k views

How do I know when to change my spark plug

I ride a Piaggio scooter with a single cylinder engine. Recently I broke down and the engine wouldn't restart. It turned out the spark plug was stuffed. How can I ensure that doesn't happen again?
0 votes
1 answer
250 views

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, ...
0 votes
1 answer
38 views

How long before spark plugs show use?

I have some spark plugs here from a Toyota Yaris that theoretically have only been driven with a handful of times essentially about a week old, but I suspect that these might be a little over 2 years ...
1 vote
1 answer
218 views

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 ...
3 votes
1 answer
1k views

Rusted spark plug well/mating surface - is this a concern?

While changing the spark plugs on a new to me 2014 Yamaha outboard I noticed that 3 of the 4 wells have a fair bit of corrosion in them, this corrosion isn't just in the 'outer' surface of the well ...
4 votes
2 answers
2k 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 ...
1 vote
1 answer
4k views

Safe product(s) to use to clean spark plug well

What are products that can be used, and which ones should be avoided, for cleaning the spark plug well and seat? eg. brake cleaner, carb cleaner, throttle body cleaner, etc Intention is to clean oily ...
1 vote
1 answer
2k views

Do these spark plug tube seals need to be replaced?

While inspecting the front 3 spark plugs (bank 2) on a 2GR-FE (2009 Toyota Venza), I noticed the spark plugs have oil along the entirety of their threads. There was no oil pooling the the spark plug ...
2 votes
2 answers
853 views

Spark plug and coil only one is bad for 2012 Honda odyssey

I am trying to find out if I have one spark plug (#3 to be exact) as well as the coil can I change just the one or is it bad for the engine to do so?
2 votes
2 answers
4k views

Can standard spark plugs be used instead of platinum/iridium?

I have a 2015 Subaru Forester 2.5i with a M/T. Can standard plugs be used in place of the (overpriced) platinum/iridium OEM's? I tried platinum in two previous cars and they gave less mpg and ...
4 votes
1 answer
321 views

Antique Briggs & Stratton 23A-FB spark plug

I got an old Briggs & Stratton stationary engine. In order to check the spark plug I was removing it from the head and I noticed the thread of the spark plug is surprisingly wide (16mm). Since the ...
7 votes
5 answers
3k views

Engine shakes, from bad oil change

I got an oil change awhile back, I notice my car idling a little more. Where I park for work it was hard to tell what the oil leak was coming from on the ground. I don't know much, but I popped my ...
7 votes
2 answers
1k views

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 ...
1 vote
3 answers
64 views

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 ...
0 votes
1 answer
328 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 ...
5 votes
1 answer
2k 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 ...
1 vote
1 answer
196 views

Busting spark plugs every hour

What is happening when a vehicle keeps busting a spark plug every time you put in a new one?
0 votes
0 answers
717 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 ...
4 votes
2 answers
382 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 ...
2 votes
1 answer
97 views

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 ...
6 votes
2 answers
14k views

Rough idle + slow acceleration + engine dying after spark plug change

I recently changed the spark plugs and wires on my 2002 Ford Focus SE with Zetec (DOHC) engine. I used NGK TR5IX (7397-4PK) Iridium IX plugs and Motorcraft wires. When I received the plugs, they were ...
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....
5 votes
3 answers
46k views

Are Oil Puddles in Cylinder Head Normal?

Changing spark plugs and one well was full of oil. I took off the valve cover to replace the gasket and noticed that there was quite a bit of oil puddled in the cylinder head. Is this normal or could ...
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 ...
4 votes
1 answer
1k views

Vespa Plug,Contact Point and Condenser

For my Vespa P150 x I want to know technically regarding to Plug What should be the color of a healthy plug spark? Mine is a blue red like color. Contact Points How can I check that the points of ...

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