Common questions

How do you clean a carbon-fouled plug?

How do you clean a carbon-fouled plug?

Yes they can be cleaned, it used to be commonly done, every gas station had a ‘spark plug cleaning machine’ just a small sand blaster. In the field you can remove carbon with the point of a knife or something small and sharp like a safety pin, also emery boards or a small piece of sandpaper for the gap.

Can a car run with carbon fouled spark plugs?

It not only lowers vehicle gas mileage, but it can result in carbon fouling of the spark plugs. Unfortunately, it is impossible to prevent stop-and-go traffic conditions.

When to replace spark plugs on Ford F-150?

Worn out / faulty spark plugs. Bad ignition coil. There is a Technical Service Bulletin ( TSB 14-0180) for the 2011-2013 Ford F-150 that suggests that you check the spark plugs for carbon tracks, and replace the plugs and boots if carbon tracks are found.

Why does my car keep fouling my spark plugs?

A vehicle left idling for a long period of time will often end up with carbon fouling. When a vehicle is not going to leave soon, turning off the engine will prevent fouling from vehicle idling because it will eliminate carbon deposits. A rich fuel mixture can result in carbon fouling.

What kind of spark plugs do Ford EcoBoost use?

Since the 3.5L Ecoboost in my Expedition has 79,000 miles on the original spark plugs, I decided to replace all (6) spark plugs with new ones. (6) Motorcraft SP-580 (CYFS-12-YT4) spark plugs. NOTE CYFS-12-YT4 replaced the original CYFS-12-YT3 spark plug.

It not only lowers vehicle gas mileage, but it can result in carbon fouling of the spark plugs. Unfortunately, it is impossible to prevent stop-and-go traffic conditions.

Worn out / faulty spark plugs. Bad ignition coil. There is a Technical Service Bulletin ( TSB 14-0180) for the 2011-2013 Ford F-150 that suggests that you check the spark plugs for carbon tracks, and replace the plugs and boots if carbon tracks are found.

A vehicle left idling for a long period of time will often end up with carbon fouling. When a vehicle is not going to leave soon, turning off the engine will prevent fouling from vehicle idling because it will eliminate carbon deposits. A rich fuel mixture can result in carbon fouling.

Since the 3.5L Ecoboost in my Expedition has 79,000 miles on the original spark plugs, I decided to replace all (6) spark plugs with new ones. (6) Motorcraft SP-580 (CYFS-12-YT4) spark plugs. NOTE CYFS-12-YT4 replaced the original CYFS-12-YT3 spark plug.

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Ruth Doyle