Commercial spark plug service

Commercial Spark Plug Service & Replacement

Your spark plugs are a tiny but critical component of your Ford vehicle. They need to be replaced occasionally to ensure your engine continues to work as it should. If you live in Oklahoma City, Edmond, or Tulsa, you can bring your vehicle to Bob Moore Ford Commercial, and our technicians will check out your spark plugs and replace them if needed.

Spark Plug Function

Your spark plugs use high-voltage electricity from your vehicle’s ignition coil to create the sparks needed to ignite the air and fuel mixture in your engine to make it start. However, like other components in your vehicle, the spark plugs wear out in time and need to be replaced so your vehicle will continue to run.

How Often Should Plugs be Replaced?

Like many other maintainable systems in your vehicle, your spark plugs don’t last forever. Your owner’s manual provides you with the information you need on all maintainable systems in your vehicle from oil changes to your ignition system. Most manuals will recommend 30,000, 60,000, or 100,000 miles. It is important to check your manual though as different manufacturers have different instructions as to the maintenance schedules for their makes. Some indications that you need to have new spark plugs include the following:

·         You fail your state emission testing.

·         You notice unusual engine vibrations or the vehicle idle feels rough.

·         You notice a loss in fuel economy and/or power.

·         Your check engine light flashes when accelerating or a diagnostic shows a misfire code, or you notice that the engine is misfiring.

·         You have difficulty starting your vehicle or when driving you feel the misfiring when it happens.

Many times, only one spark plug will be bad, but it’s best to change all at the same time. Otherwise, you may have continual issues with your vehicle. The number of spark plugs your engine has corresponds to the number of cylinders. A four-cylinder engine will usually have four spark plugs. A V8 engine will have eight spark plugs.

Spark Plug Service in Oklahoma City

The service technicians at Bob Moore Ford Commercial will check your spark plugs and will replace them if needed. Spark plugs are threaded into the cylinder head, so your technician will remove all the plugs and will examine them for problems. Wear on spark plugs can point to other issues with your engine.  If the spark plugs have worn out, the service technician will replace them and take the vehicle for a test drive to make sure it is running correctly.


Spark plugs are an important component to keep your commercial vehicles running smoothly and reliably. Problems with the spark plugs or other engine components can cause efficiency to decrease and reduce productivity in your day. The service team at Bob Moore Ford Commercial will help you keep your business vehicles in prime condition with our spark plug service and replacement. Schedule an appointment today to keep your fleet in prime condition.