Why do you replace spark plugs

New plugs that are replaced at regular intervals maximize fuel economy, saving you money. Smooth, Dynamic Starts — Convulsing starts will be a thing of the past when new spark plugs are installed in your vehicle. Email me this coupon. Print this coupon. Click the button below to print. Print Coupon. But we can hook you up with a set of new E3 spark plugs to make sure your car starts when you find it.

Reason 1: New spark plugs help keep your engine at its peak performance and efficiency levels. Of course, every vehicle on the road will misfire from time to time. But as those misfires get more and more frequent, they also get more troublesome.

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Find Store. Find a Different Location Find a Store. Do you want to change your Preferred Store? Yes No. This site uses cookies to enhance your user experience. That being said, it's important to change them when it's recommended by the car's manufacturer, or sooner if you notice any signs that it might be time.

Here are some of the telltale signs that it may time to clean or replace them. If they aren't maintained properly, some serious damage to your engine could result. If you're handy with a ratchet and are confident with what's under the hood, you can probably replace your spark plugs on your own. Be sure to let the engine cool completely before you begin. If your vehicle has spark plug wires, most owner's manuals recommend that the wires be replaced at the same time as the spark plugs, so you'll probably want to have both new plugs the correct ones for your vehicle and new wires on hand before you start the job.

Note: Instead of wires, some newer cars have coil on plug, or COP, assemblies. If you aren't replacing the wires, make sure you change one spark plug at a time so you can be sure you connect the right plug to the right wire. If you are replacing the wires, look through your vehicle repair guide for a wiring diagram. Each must be connected to the distributor cap and to the cylinder head in order. The vehicle repair guide will be essential in determining the correct socket size, spark plug gap, and tightness during installation, as well.

Guide to Replacing Spark Plugs and Wires. If you prefer not to replace your spark plugs yourself, be sure to give us a call at All in the Wrist Auto Repair.