As such, replacing your spark plugs is an important part of keeping your engine ticking in tip-top shape, the way the factory intended. After all: if your spark plugs are worn, dirty, or past-due ...

See All 5 Photos See All 5 Photos The Ford 5.4L Triton three-valve engine is a great powerplant and comes from the factory with Motorcraft platinum tipped spark plugs rated to last 100K miles.

Another manufacturer-backed parts company, AC Delco 's spark plugs are well-regarded for the same reasons as Motorcraft — General Motors' engines are designed with AC Delco plug specs in mind ...

If you are the owner of a Ford truck with a three-valve (3V) modular V-8 or V-10 engine built from 2004 thru 2007, you have either faced the misery of broken spark plugs-or you will. The Ford 4.6L ...

Spark plugs are a mission-critical part of a gasoline engine's ignition system. Without them, there's nothing to ignite the air-fuel mixture in each cylinder.

Autoblog may receive a share from purchases made via links on this page. Pricing and availability are subject to change.

A brand new vehicle may not need new spark plugs for 50,000 to 100,000 miles, but when the existing spark plugs start to fail, the vehicle will begin to show signs, such as rough idling sounds ...

Spark plugs are one of those mechanical components that can easily be forgotten about, but they do need to be changed at some point. Here's how often.

If you found oil on your spark plugs while doing a replacement, it's something that shouldn't be ignored. Here are the most likely culprits.

Platinum spark plugs can typically last around 60,000 to 100,000 miles, while iridium (one of the hardest materials used in spark plugs) often pushes the upper limit of 100,000 miles or more.