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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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0answers
23 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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1answer
38 views

knocking at very low rpm (borderline stalling)

i have VW jetta 2.5 (manual) when i go uphill slowly in to second gear or in reverse, without throttle. due to very low engine speed (probably 150-350 rpm). i get weird knocking/pinging sound. is it ...
2
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1answer
24 views

Spark Plug Gap Ranges

I recently changed the plugs in my 07 Honda Goldwing and after reading lots of material and articles about which plug was considered better I went with an NGK Iridium and followed all the technique ...
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3answers
4k views

Why one should not leave fingerprints on bulbs and plugs?

I have read that one should not leave greasy fingerprints on their spark plugs or on their light bulbs. Why is this a thing? On what else one should not leave fingerprints? How does one avoid leaving ...
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2answers
50 views

Evaluation Of Spark Plug

I pulled this spark plug from an engine that sat for a while. I’m wondering if any details regarding the running condition can by inferred from the picture.
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0answers
39 views

what are possible indications that the spark plugs of my motorcycle need replacing?

Is there a way to find out, without taking the motorcycle to a garage, that the spark plugs need changing? In other words, if one or all of the sparking plugs of my motorcycle are worn out or need a ...
2
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1answer
57 views

Spark Plug Cross Reference (Denso IK24C11)

I am replacing the spark plugs on my engine, and the manual calls for Denso IK24C11 plugs. However, it does not appear that Denso makes these any longer. I cannot find them on their website (although ...
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1answer
63 views

Spark Plugs Maintenance

I just changed my first set of spark plugs. I tend to think most things are just an excuse for companies to sell us things. I took a picture of spark plugs replaced out of my Mazda 3 after about 100,...
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0answers
34 views

Quick fix? Or major problem? Please help

Help, 02 honda civic lx coupe cranks but will not start. I bought the car less then 3 months ago put used rebuild trans in it seemd fine then what seemed to be running hot but with no warning signs so ...
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0answers
96 views

Analysis of spark plugs [PHOTO] and fuel trims

Again, this is a 2002 Nissan direct injected engine (QR20DD). By judging spark plugs, I assume that the air / fuel mixture is not rich. May be some kind of a lean condition? But the issue is fuel ...
2
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0answers
52 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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0answers
37 views

Oil Pressure Sensor

I recently just had my valve cover gasket replaced due to an oil leak. for some odd reason, the red oil light now lights up on my dashboard. I wasn't due for an oil change til the end of this month ...
3
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1answer
35 views

Do spark plugs need changing if one ignition coil cable broke

A friend of mine had one of their ignition coil snap in half, which meant one cylinder wasn't firing. She drove for approximately for 10km, before getting back home and finding out what was wrong. We ...
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1answer
31 views

Two spark plug wire failures in two days?

I've got a 2003 Kia Rio (4 cyl) that started shuddering on me yesterday. When I got home I found that the cylinder 3 spark plug wire had gone bad. Sparks were coming out the side at an apparent ...
2
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1answer
52 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 ...
3
votes
1answer
83 views

Broken spark plug: safe piston?

I have a broken Spark plug in a 2SZFE engine. Oil level is not changing. Does it means the piston is safe? There’s a spark plug part in the first cylinder because previous owner chose a low cost ...
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0answers
37 views

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 ...
3
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1answer
106 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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2answers
61 views

8th Honda civic engine rotations surges

Due to bad gasoline on the highway the spark plugs are worn. There was an evacuation of the car and then it got to the mechanic. Old spark plugs (iridium) were replaced with new (iridium too), after ...
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1answer
317 views

Ignition coil upgrade

My motorcycle felt unresponsive these past few days and found out that it was caused by a weak spark because the ignition coil is about to go bust. Since I am thinking about doing an upgrade to a ...
2
votes
1answer
297 views

Normal spark plug vs platinum [duplicate]

Is there any disadvantages or bad impact of using platinum spark plug instead of normal plug, even if the manufacturers recommended to use normal spark plug .like (Mitsubishi Lancer GLX automatic)
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1answer
74 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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1answer
33 views

Honda SOHC spark but no ignition even with starter fluid

i'm restoring an Honda SOHC engine 250, i fixed the full electrical system and i can see the spark testing it near the engine. (Not sure if gap is correct of the new spark plug), there is compression ...
2
votes
1answer
277 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
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1answer
132 views

Proper spark plug gap

What is the gap for a 98 ranger 3.0? The stickers under hood are gone and there is no book in glove box. I just bought this truck and have nothing to go on.
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3answers
1k views

Do you change spark plugs every service?

I notice that mechanic make a point that they change spark plugs annually i.e. every yearly service. However it seems to me spark plugs can have a long life e.g. google says they are four fifths worn ...
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1answer
626 views

Broken spark plug porcelain not letting easy out do its job

how do I get an easy out past porcelain easy out not grabbing and porcelain is not breaking
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0answers
61 views

Car shakes upon startup, dies. Other times gas pedal does not respond

I'm pretty uneducated when it comes cars but im hoping you guys can help me. I have a 99 Ford Ranger that upon startup (not every time) shakes extremely hard and then dies. Other times when driving I ...
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0answers
199 views

Can I use a DC ignition coil for my motorcycle without damaging anything?

Last night I followed this guide I found on the internet http://waynescyclegarage.mysite.com/custom.html showing you how to rewire a Honda SL engine so that it can run without a battery.. and I got it ...
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1answer
52 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 ...
0
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1answer
55 views

Why do car manufacturers use different brands of spark plugs simultaneously?

When I changed the spark plugs on my 08' 4Runner, I noticed it had alternating Denso and NGK sparks plugs in the engine. The manual has them both listed: Denso (K20HR-U11) and NGK (LFR6C-11). What is ...
2
votes
1answer
1k views

Does starting the engine with one of the spark plug wire disconnected damage the starter coil?

A friend of mine (he is not my friend anymore) decided to pull a practical prank on my new motorcycle. He pulled the wire of one of the spark plug (my bike has three of them in the cylinder) and let ...
1
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1answer
1k views

Broken ignition coil: spark plug's fault?

Two days ago my Opel Corsa D LPG's engine started to misfire, and by means of an OBD interface I found out it was cylinder 1. First thing I thought about were the spark plugs, as I haven't changed ...
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1answer
186 views

Will a previous valve cover leak effect what needs to be done while replacing spark plugs?

I had some leaking valve covers about two months ago, and was warned this meant I'd need to have some vaguely defined extra service done during the next tune-up or I'd risk ruining the new spark plugs....
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0answers
178 views

Spark plug arcing during removal, engine off.

What could cause the spark plug to arc off the socket and exhaust manifold when removing the spark plug? Obviously the ignition was in the off position. This same plug tends to get carbon deposits ...
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1answer
1k views

Broken spark plug white portion cracked

The white portion of the spark plug cracked while i was twisting it off and now i cant get the plug out and the 10mm for some reason wont get out either
2
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2answers
87 views

Actual amount of time required to change spark plugs in a 2003, Ford Ranger XLT, 4.0 L, 6 cyl

I would like to know what the actual amount of time is for a trained mechanic to change the spark plugs in a 2003, ford, ranger xlt, 4.0 l, 6 cyl., 4 WD, automatic ? The local Ford service/dealer ...
4
votes
1answer
75 views

broken spark plugs in a 94 Ford Ranger

I broke a spark plug in my 94 Ford Ranger. Everything came out except the threads and the metal casing. The problem I'm having is the easy out will not fit in far enough to grab ahold of the casing ...
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2answers
104 views

What this motorcycle engine plug tell about the operation inside engine?

What does this plug tell about the inside operation of the engine? I can't find any plug that looks like this in any online charts.
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2answers
311 views

Why do the spark plugs need to be replaced periodically?

I have a Toyota Etios Liva Viera Limited Edition car, 3 years old. Last week, I took the car for the yearly service at the authorised service centre. The service person said that the spark plugs need ...
2
votes
1answer
1k views

How do I remove debris from spark plug well (without damaging the head)? [duplicate]

The problem is that either someone didn't use anti-seize or someone forced in the plugs wrong (or both) because I've had the jolliest time trying to remove them from this 2002 Nissan sentra 1.8. I ...
2
votes
2answers
500 views

Why are my new spark plugs doing this?

I have a 2006 Ford Mustang V6 4.0L. I just purchased these Bosch 6715 platinum spark plugs and installed them. I took them out because I noticed air was coming out of the spark plug socket. When I ...
3
votes
0answers
80 views

Car Hissing on Neutral After Checking Spark Plug

So last night, two days after examining one spark plug and putting it back in, I noticed a hissing sound from the front of the car. This hissing goes away completely when I press the clutch pedal in. ...
2
votes
2answers
161 views

Spark plug analysis [Photo]

I noticed some performance issues while accelerating and today, I decided to pull my spark plugs out and check their condition. This is a Nissan car with 2L NEO Direct Injection engine and they have ...
2
votes
2answers
300 views

Is this plug fouled due to being too cold?

When changing the plugs on my 99 Nissan Almera 1.6L I noticed that the tips of all the plugs looked a bit weird with these white deposits ( all four look like this ): Upon closer inspection, I ...
4
votes
1answer
169 views

Small spark can be seen after replacing spark plugs

I have replaced spark plugs for my 2005 vw fox. I noticed that in one cylinder I can see a small spark coming from the spark boot. It only appears on one spark wire. Do you guys know if this is ...
7
votes
3answers
1k views

Black Spark Plugs that Clean Themselves

Vehicle: 2002 Mazda Protégé LX, 2.0L engine, automatic transmission, 240,000 km Recent Work: Thermostat replacement Symptoms: Owner reported that the car shook and stalled on startup. She parked ...
7
votes
1answer
1k views

What causes pink spark plugs?

Vehicle: 2000 Ford Windstar, 3.8L V6 engine, automatic transmission, 166,000 km, recently purchased, was brought to me for some torubleshooting and minor repairs Symptoms: Occasional hesitation ...
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5answers
1k 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....
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1answer
99 views

Changing a tight old spark plug

Is it possible to ensure that no debris from broken spark plug insulator falls into the combustion chamber when changing an old plug?