Questions tagged [sparkplugs]

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

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1answer
116 views

Why can't I get a spark?

I have an early 70's Honda SL125 engine and I'm trying to wire it up so that it can run without the battery. I found this guide http://waynescyclegarage.mysite.com/custom.html and I've followed it and ...
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1k 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 ...
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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....
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128 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 ...
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1answer
135 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?
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2answers
68 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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3answers
447 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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136 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 ...
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1answer
98 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 ...
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1answer
27 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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2answers
147 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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71 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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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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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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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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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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3answers
507 views

What is better for sparkplugs, inconel super alloy or iridium?

I am buying new sparkplugs for my 2006 Volkswagen Passat 2.0T and i purchased pulstar be1h10 sparkplugs with a plasma core, but i am now being told that they are not good for my car because they arent ...
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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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55 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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3answers
22k views

RPM drop when coming to a stop in neutral, Civic 06

Let's say I'm getting off the freeway, I press the clutch, shift out of 5th to neutral. At that moment my Civic DX would usually drop to about 1000 rpm at idle. For the past month it drops too low, ...
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55 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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55k views

What does a healthy spark plug look like?

The spark plug pictured here: Has some black carbon on the underside of the ground electrode and has black carbon on the "base" area below the centre electrode (not pictured). Is this normal and ...
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45 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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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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1answer
12k views

Do I Need to Ground the Spark Plug When Testing

When I'm using a known good spark plug to test spark at each wire, do I need to ground the threads of the plug to the engine block like the guy in this video is doing? What happens if I don't ground ...
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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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5answers
18k views

Side effects of small amount dirt from spark plug well

I was changing a bad spark plug on my F150 4.6L V8 and despite cleaning the spark plug well as thoroughly as I could muster (rearmost cylinder and under the dash pretty well so very little clearance) ...
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1answer
551 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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1answer
42 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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3answers
2k 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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1answer
53 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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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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2answers
7k views

Plugs: One side dirty, one side clean?

I was just inspecting some plugs and noticed that on each plug, one side was relatively cleanish, while the other side was dirtier and had built up deposits. Why would one side be significantly ...
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2answers
70 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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2answers
375 views

What do the colored rings on spark plugs mean?

On the white part of spark plugs there are those colored rings. In amount ranging from 0 to 4. What does the amount of rings refer to? And what does it's color refer to? Is it just aesthetics?
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3answers
215 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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3answers
131 views

Wounded and beat by a spark plug that won’t be beaten

I am working on a friends car they just recently got and he went to change the spark plugs only to find out that it was cross threaded but I do t think the car even had 100,000 mi on it yet and the ...
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2answers
71 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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1answer
4k views

O2 Sensor Error after replacing spark plugs?

Ford Taurus 2004 Sedan SES DOHC. (The car is actually in the shop right now and I told him to hold off until I get more info.) Took the car to the local shop to get the spark plugs replaced. Because ...
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0answers
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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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2answers
747 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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2answers
179 views

Broken spark plug + Broken puller

My 2006 Ford Expedition 5.3L Triton 3-valve with ~140K miles has a broken spark plug in cylinder #3 (passenger side, 2nd from back). My mechanic tried a well-used puller, but it wouldn't grab. He then ...
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4answers
11k views

Can I run on 7 cylinders if I shut the injector to that cylinder off?

I have a 2006 F150 5.4 Triton 3 valve. I've had a really bad issue, where a socket is stuck in my spark plug chamber and everything has failed to get it out. The option I'm left with now is ...
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0answers
146 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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2answers
11k views

What kind of spark plug should I choose for LPG conversion?

I recently had an LPG system installed in my Golf MK4 and now the car has some hesitation when accelerating. The mechanic who installed the LPG System told me that I need to change my current (cheap, ...
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4answers
17k views

How to Clean Lightly Fouled Spark Plugs

My car was running without a thermostat for a few months after I put in new spark plugs. The plugs are a bit fouled ( not horribly so ) and I was thinking about cleaning them. I've seen suggestions ...
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10k views

2000 Honda Civic Won't Start after Replacing spark Plugs

My 2000 honda civic ex 4-dr sedan seemed like it was misfiring. I decided to check the spark plugs to see if that was the issue. I replaced the spark plugs. The car would turn over however the ...
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2answers
1k views

Impact wrench on spark plugs?

'07 Cobalt LS, vanilla 2.2 I may have to remove the (probably 10-year-old) spark plugs, which I suspect may be stuck. If so, I'm wondering if it would be prudent to hit them with an impact wrench ...
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1answer
49 views

Fourth piston isn't sparking so car is losing power

What are the possible reasons that my fourth piston is not sparking. I am pretty sure the spark plug is broken but I am not sure. The car is a 2006 Scion XB. Thank you.
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1answer
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dying on fast acceleration + blackened spark plugs, but no problems on idle

I drive a 1990 Audi 80 b3 with 2.0-liter gasoline engine (I have no idea what the correct term is in English since it is not my native language, so please excuse me my mistakes). Today I encountered ...

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