Spark Plug Archives - UnderhoodService
Ignition System Do’s and Don’ts

Why do ignition systems give technicians problems when diagnosing ignition-related misfires? The answer is that some technicians use tests that might give inconclusive results or do damage to the coil or drivers inside a module.

Spark Plug Fouling

Understanding why spark plugs get dirty.

The Importance of Proper Spark Plug Torqueing

Whenever you install new spark plugs in your vehicle’s engine, there are some crucial considerations to keep in mind. For those who have installed plugs before, proper plug gapping usually comes to mind first. But another important factor in getting the most out of a new set of spark plugs is to precisely torque them

Selecting The Correct ACDelco Spark Plug (VIDEO)

ACDelco plugs feature advanced suppressor designs that prevent flashover & leaks of combustion gases. Sponsored by ACDelco.

Spark Plug Analysis Paralysis

Making sure to pick the correct replacement plug is crucial, but so is understanding them.

Don’t Forget About Ignition When It’s Time for Road Trip Tune-Ups

Summer 2020 was a boom time for road trips. Many drivers were eager to hit the road, and according to the Expedia® 2020 Summer Travel Report published in July 2020, 85% of U.S. travelers reported that they would be likely to take a road trip. This road trip renaissance is slated to continue into spring

Earn Customer Trust with Ideal Spark Plugs for GDI Engines

One of the key factors for a shop’s success is its reputation for customer service. While you cannot change the way vehicles and parts are manufactured, you can offer confident recommendations to customers on which parts will work best for their needs. The use of Gasoline Direct Injection (GDI) engines has continued to grow across

Earn Customer Trust with Ideal Spark Plugs for GDI Engines

One of the key factors for a shop’s success is its reputation for customer service. While you cannot change the way vehicles and parts are manufactured, you can offer confident recommendations to customers on which parts will work best for their needs. The use of Gasoline Direct Injection (GDI) engines has continued to grow across

VIDEO: Should Anti-Seize Be Applied On Spark Plug Threads?

Using anti-seize without reducing the required torque value can strip the threads. This video is sponsored by Autolite.

VIDEO: How Often Do You Need To Change Spark Plugs?

Different manufacturers use different kinds of spark plugs. This video is sponsored by Autolite.

VIDEO: What If Spark Plugs Are Not Replaced?

Worn spark plugs can cause more damage to an engine than you might think. This video is sponsored by Autolite.

Know Your Engine When Determining Spark Plug Service Intervals

How much easier and simpler would life be if every problem had a one-size-fits-all solution? Unfortunately, that will never be the case since almost every conundrum must be mitigated via a solution that involves the precise implementation of a diverse set of actions that have to link seamlessly in order to optimize or improve the