You aren't able to start your Ford without ignition. That only comes about thanks to the original spark plugs installed at the factory. Those generate that initial flash that ignites the air/fuel mix in your engine's combustion chamber.
How Do Spark Plugs Work?
The spark plugs have a precisely calibrated gap between their two leads. They fire an arc of electricity across that gap, which fuels the flash that initiates ignition. If your Ford has a diesel engine, it doesn't have spark plugs. Instead, it's equipped with glowplugs. They have a heating element in their tip that lights the fuel mist that's sprayed into the engine cylinder. Whether your vehicle is equipped with spark plugs or glowplugs, your Ford came with the right type for your engine. Eventually even these high-quality plugs can go bad, though. Maybe they've become corroded, or the gap has widened too far to produce an effective spark. Before you blame your alternator for starting troubles, check your plugs.
Signs of Failing Spark Plugs
Here are some common indications that your plugs are going bad:
- Engine misfires
- Uneven idling
- Problems starting the vehicle
- Your "Check Engine" dash light comes on
Your owner's manual will inform you as to how often you need to change your spark plugs. Make sure to replace them before they go past their rated mileage, or else you're risking engine problems. When you do replace your spark plugs, make sure to change all of them at the same time and use the right plugs for your model. Those would be Ford plugs, since they're the only ones designed to deliver quality you can trust. Our online auto parts department has plenty in stock and ready to ship. Order now and save!
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