Spark Plugs and Why They Break

If you've ever replaced the spark plug in your Ford vehicle, you've probably heard horror stories about them breaking during the removal process. Ford is aware of this problem, and has issued an 11-page technical service bulletin detailing the potential causes of breakage. The problem is so widespread that it has prompted Ford to develop a downloadable guide for Ford owners. You can download this guide and use it to determine which spark plugs you need to replace.

While you're at it, don't forget to check the spark plug tips. Carbon can cause the lower spark plug shell to separate from the upper spark-plug shell. If this happens, don't try to remove the spark plug without a tool, because you might accidentally break the lower shell. A special Ford extractor tool is needed to remove it. You can also check the spark plug's electrical connection using a volt meter.

A failing spark plug can lead to a variety of problems, including misfiring, stalling, and decreased power. It's to replace it as soon as possible, as failure can lead to more serious problems down the road. Ford offers a wide selection of OEM spark plugs to replace your car's spark plugs. The right part for your car's engine can mean the difference between a successful car run and a failure to start.

For example, Ford recommends changing the spark plugs once every 100,000 miles. This prolongs the interval, which allows rust and carbon to build up around the metal ground electrode shield. This damage makes it nearly impossible to predict when the spark plugs will fail and cause an engine malfunction. Regardless, replacing them early can save you money. It also gives you peace of mind. If you can't get to your car for a few months, consider hiring a mechanic to do it for you.

For some Ford models, a professional is required to replace the spark plug. The Ford Technical Service Bulletin 08-7-6 offers detailed information about the removal and replacement of spark plugs. These bulletins can be found online, or at Snap-On tool distributors. There is no need to rush and make sure you buy a new plug for your Ford. Just make sure that you're careful and that you're doing the job correctly.

When replacing your Ford spark plugs, you must ensure that the vehicle's oil level is adequate. The oil should be poured into the threads, soaking the carbon around the electrode shell. Then, you should tighten the spark plug to 25 ft. lbs. Then, you can start your car and drive it. After all, you won't regret it. But it is important to remember that spark plugs can't be replaced unless they're faulty, and if they're not, your car will likely experience misfires.

The AGSF-32P-M is another option. This spark plug is made from a copper core, but has a platinum tip and has double platinum features. Platinum offers better performance than copper, but at the same time is much less expensive than iridium. Its dimensions are standard, at 14 mm in thread diameter. It's compatible with 58 Ford models. You can even find spark plugs in different colors if you have an older model.